TL2575, TL2575HV
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
TL2575, TL2575HV 1-A Simple Step-Down Switching Voltage Regulators
1 Features
3 Description
•
The TL2575 and TL2575HV devices provide all
the active functions needed for a step-down (buck)
switching regulator in an integrated circuit. They
require four to six external components for operation.
They accept a wide input-voltage range of up to
60 V (TL2575-HV) and are available in fixed output
voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustableoutput version. The TL2575 and TL2575HV devices
have an integrated switch capable of delivering 1
A of load current, with excellent line and load
regulation. The device also offers internal frequency
compensation, a fixed-frequency oscillator, cycle-bycycle current limiting, and thermal shutdown. In
addition, a manual shutdown is available through the
external ON/OFF pin.
•
•
•
•
•
•
•
•
Fixed 3.3-V, 5-V, 12-V, and 15-V options with
±5% regulation (maximum) over line, load, and
temperature conditions
Adjustable option with a range of 1.23 V to
37 V (57 V for HV version) and ±4% regulation
(maximum) over line, load, and temperature
conditions
Specified 1-A output current
Wide input voltage range
– 4.75 V to 40 V (60 V for HV version)
Requires only four external components (fixed
versions) and uses readily available standard
inductors
52-kHz (typical) fixed-frequency internal oscillator
TTL shutdown capability with 50-μA (typical)
standby current
High efficiency
– As high as 88% (typical)
Thermal shutdown and current-limit protection with
cycle-by-cycle current limiting
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE (NOM)
PDIP (16)
19.31 mm × 6.35 mm
TL2575, TL2575HV
TO-263 (5)
10.16 mm × 8.93 mm
TO-220 (5)
10.16 mm × 8.82 mm
2 Applications
•
•
•
(1)
Buck and inverting buck-boost power supplies
Motor drives and building automation
Grid infrastructure and factory automation and
control
Unregulated
DC Input
VIN
Internal
Regulator
1
+
For all available packages, see the orderable addendum at
the end of the data sheet.
ON/OFF
On/Off
5
CIN
FEEDBACK
4
R2
R1
1 kΩ
Fixed-Gain
Error Amplifier
Comparator
+
_
+
_
Driver
1-A
Switch
OUTPUT
2
GND
52-kHz
Oscillator
Reset
Thermal
Shutdown
Current
Limit
3
VOUT
+
D1
1.23-V
Band-Gap
Reference
L1
COUT
L
O
A
D
3.3 V: R2 = 1.7 kΩ
5 V: R2 = 3.1 kΩ
12 V: R2 = 8.84 kΩ
15 V: R2 = 11.3 kΩ
ADJ: R1 = Open, R2 = 0 Ω
Pin numbers are for the KTT (TO-263) package.
Functional Block Diagram
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 4
6.1 Absolute Maximum Ratings........................................ 4
6.2 ESD Ratings............................................................... 4
6.3 Recommended Operating Conditions.........................4
6.4 Thermal Information....................................................4
6.5 Electrical Characteristics — TL2575...........................5
6.6 Electrical Characteristics — TL2575HV......................6
6.7 Typical Characteristics................................................ 8
7 Parameter Measurement Information.......................... 10
7.1 Test Circuits.............................................................. 10
8 Detailed Description...................................................... 11
8.1 Overview................................................................... 11
8.2 Functional Block Diagram......................................... 11
8.3 Feature Description...................................................11
8.4 Device Functional Modes..........................................12
9 Application and Implementation.................................. 13
9.1 Typical Application.................................................... 13
10 Power Supply Recommendations..............................19
11 Layout........................................................................... 19
11.1 Layout Guidelines................................................... 19
11.2 Layout Example...................................................... 19
12 Device and Documentation Support..........................20
12.1 Receiving Notification of Documentation Updates..20
12.2 Support Resources................................................. 20
12.3 Trademarks............................................................. 20
12.4 Electrostatic Discharge Caution..............................20
12.5 Glossary..................................................................20
13 Mechanical, Packaging, and Orderable
Information.................................................................... 20
13.1 Package Option Addendum.................................... 21
4 Revision History
Changes from Revision C (October 2014) to Revision D (June 2022)
Page
• Updated the numbering format for tables, figures, and cross-references throughout the document..................1
• Updated applications.......................................................................................................................................... 1
Changes from Revision B (January 2007) to Revision C (October 2014)
Page
• Updated document to new TI data sheet format.................................................................................................1
• Deleted Ordering Information table.....................................................................................................................1
• Added Pin Functions table..................................................................................................................................3
• Added ESD Ratings table................................................................................................................................... 4
• Changed Thermal Information table................................................................................................................... 4
• Added Detailed Description section.................................................................................................................. 11
• Added Application and Implementation section................................................................................................13
• Added Power Supply Recommendations and Layout sections........................................................................ 19
2
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
5 Pin Configuration and Functions
KTT (TO-263) PACKAGE
(TOP VIEW)
GND
5
4
3
2
1
N (PDIP) PACKAGE
(TOP VIEW)
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
NC
NC
OUTPUT
NC
GND
NC
FEEDBACK
NC
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
VIN
NC
NC
GND
GND
NC
NC
ON/OFF
NC − No internal connection
KV (TO-220 STAGGERED LEADS) PACKAGE
(TOP VIEW)
(SIDE VIEW)
GND
5
4
3
2
1
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
Pins 1, 3, 5
Pins 2, 4
Table 5-1. Pin Functions
PIN
NAME
FEEDBACK
KTT
TO-263
N
PDIP
KV
TO-220
TYPE
DESCRIPTION
4
7
4
Input
3
—
Ground
—
—
No connect
Feedback pin. Connect to VOUT for the fixed-voltage
TL2575. Connect this pin between two adjustment
resistors for the adjustable-voltage TL2575.
5
GND
3
12
13
1
2
4
6
NC
—
8
10
11
14
15
ON/OFF
5
9
5
Input
OUTPUT
2
3
2
Output
VIN
1
16
1
Input
Manual shutdown pin
Output pin
Supply input pin
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
3
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN
VIN
Supply voltage
MAX
TL2575HV
60
TL2575
42
ON/OFF input voltage range
–0.3
VIN
Output voltage to GND (steady state)
TJ
(1)
Maximum junction temperature
UNIT
V
V
–1
V
150
°C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
6.2 ESD Ratings
MIN
Tstg
Storage temperature range
V(ESD)
(1)
(2)
Electrostatic
discharge
MAX
UNIT
°C
–65
150
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1)
0
2000
Charged device model (CDM), per JEDEC specification JESD22-C101, all
pins(2)
0
1000
V
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
VIN
Supply voltage
TJ
Operating virtual junction temperature
MIN
MAX
TL2575HV
4.75
60
TL2575
4.75
40
–40
125
UNIT
V
°C
6.4 Thermal Information
THERMAL METRIC(1)
KV
N
5 PINS
5 PINS
16 PINS
RθJA
Junction-to-ambient thermal resistance
26.5
26.5
67
RθJC(top)
Junction-to-case (top) thermal resistance
31.8
31.8
57
RθJC(bot)
Junction-to-case (bottom) thermal resistance
0.38
0.38
—
(1)
4
KTT
UNIT
°C/W
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
6.5 Electrical Characteristics — TL2575
ILOAD = 200 mA, VIN = 12 V for 3.3-V, 5-V, and adjustable versions, VIN = 25 V for 12-V version, VIN = 30 V for 15-V version
(unless otherwise noted) (see Figure 7-1)
PARAMETER
TEST CONDITIONS
TL2575-33
VOUT
Output voltage
TL2575-12
Feedback voltage
η
Efficiency
TL2575-ADJ
TYP
25°C
3.234
3.3
3.366
4.75 V ≤ VIN ≤ 40 V,
0.2 A ≤ ILOAD ≤ 1 A
3.168
3.3
3.432
Full range
3.135
25°C
5
5
25°C
4.8
4.75
VIN = 25 V, ILOAD = 0.2 A
25°C
11.76
12
12.24
15 V ≤ VIN ≤ 40 V,
0.2 A ≤ ILOAD ≤ 1 A
25°C
11.52
12
12.48
18 V ≤ VIN ≤ 40 V,
0.2 A ≤ ILOAD ≤ 1 A
VIN = 12 V, VOUT = 5 V,
ILOAD = 0.2 A
8 V ≤ VIN ≤ 40 V, VOUT = 5 V,
0.2 A ≤ ILOAD ≤ 1 A
Full range
11.4
25°C
14.7
15
25°C
14.4
15
15.6
14.25
15
15.75
25°C
1.217
1.23
1.243
25°C
1.193
1.23
1.267
Full range
1.18
75%
TL2575-12
VIN = 15 V, ILOAD = 1 A
TL2575-15
VIN = 18 V, ILOAD = 1 A
88%
TL2575-ADJ
VIN = 12 V, VOUT = 5 V,
ILOAD = 1 A
77%
VSAT
Saturation voltage
IOUT = 1 A(2)
Maximum duty cycle(3)
ICL
Switch peak current(1) (2)
IL
Output leakage current
IQ
Quiescent current(4)
ISTBY
Standby quiescent current
VIN = 40(4), Output = 0 V
VIN = 40(4), Output = –1 V
OFF (ON/OFF = 5 V)
88%
25°C
25°C
50
Full range
100
500
25°C
47
Full range
42
25°C
52
58
63
0.9
Full range
1.2
1.4
25°C
93%
98%
25°C
1.7
2.8
Full range
1.3
25°C
V
1.28
77%
Oscillator frequency(1)
15.3
Full range
VIN = 12 V, ILOAD = 1 A
fo
V
12.6
VIN = 12 V, ILOAD = 1 A
VOUT = 5 V (ADJ version only)
5.2
5.25
TL2575-05
Feedback bias current
5.1
Full range
8 V ≤ VIN ≤ 40 V,
0.2 A ≤ ILOAD ≤ 1 A
UNIT
3.465
4.9
TL2575-33
IIB
MAX
25°C
VIN = 30 V, ILOAD = 0.2 A
TL2575-15
TL2575
MIN
VIN = 12 V, ILOAD = 0.2 A
VIN = 12 V, ILOAD = 0.2 A
TL2575-05
TJ
3.6
4
2
7.5
30
nA
kHz
V
A
mA
25°C
5
10
mA
25°C
50
200
μA
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
5
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
ILOAD = 200 mA, VIN = 12 V for 3.3-V, 5-V, and adjustable versions, VIN = 25 V for 12-V version, VIN = 30 V for 15-V version
(unless otherwise noted) (see Figure 7-1)
PARAMETER
TEST CONDITIONS
TJ
TL2575
MIN
TYP
25°C
2.2
1.4
Full range
2.4
MAX
UNIT
VIH
ON/OFF high-level logic
input voltage
OFF (VOUT = 0 V)
VIL
ON/OFF low-level logic
input voltage
ON (VOUT = nominal voltage)
IIH
ON/OFF high-level input current
OFF (ON/OFF = 5 V)
25°C
12
30
μA
IIL
ON/OFF low-level input current
ON (ON/OFF = 0 V)
25°C
0
10
μA
(1)
(2)
(3)
(4)
25°C
1.2
Full range
V
1
0.8
V
In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to ≈18 kHz and the
minimum duty cycle from 5% to ≈2%. The resulting output voltage drops to ≈40% of its nominal value, causing the average power
dissipated by the IC to lower.
Output is not connected to diode, inductor, or capacitor. Output is sourcing current.
FEEDBACK is disconnected from output and connected to 0 V.
To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V for the adjustable, 3.3-V, and 5-V
versions and to 25 V for the 12-V and 15-V versions.
6.6 Electrical Characteristics — TL2575HV
ILOAD = 200 mA, VIN = 12 V for 3.3-V, 5-V, and adjustable versions, VIN = 25 V for 12-V version, VIN = 30 V for 15-V version
(unless otherwise noted) (see Figure 7-1)
PARAMETER
TEST CONDITIONS
TL2575HV-33
VOUT
Output voltage
TL2575HV-12
Feedback voltage
η
6
Efficiency
TL2575HV-ADJ
TYP
MAX
25°C
3.234
3.3
3.366
4.75 V ≤ VIN ≤ 60 V,
0.2 A ≤ ILOAD ≤ 1 A
25°C
3.168
3.3
3.450
Full range
3.135
25°C
5
5.1
5
5.225
25°C
4.8
4.75
VIN = 25 V, ILOAD = 0.2 A
25°C
11.76
12
12.24
15 V ≤ VIN ≤ 60 V,
0.2 A ≤ ILOAD ≤ 1 A
25°C
11.52
12
12.54
18 V ≤ VIN ≤ 60 V,
0.2 A ≤ ILOAD ≤ 1 A
VIN = 12 V, VOUT = 5 V,
ILOAD = 0.2 A
8 V ≤ VIN ≤ 60 V, VOUT = 5 V,
0.2 A ≤ ILOAD ≤ 1 A
5.275
Full range
11.4
25°C
14.7
15
15.3
25°C
14.4
15
15.68
Full range
14.25
15
15.83
25°C
1.217
1.23
1.243
25°C
1.193
1.23
1.273
Full range
1.180
VIN = 12 V, ILOAD = 1 A
75%
VIN = 12 V, ILOAD = 1 A
77%
TL2575HV-12
VIN = 15 V, ILOAD = 1 A
TL2575HV-15
VIN = 18 V, ILOAD = 1 A
88%
TL2575HV-ADJ
VIN = 12 V, VOUT = 5 V,
ILOAD = 1 A
77%
fo
Oscillator frequency(1)
VOUT = 5 V (ADJ version only)
88%
25°C
25°C
50
Full range
100
500
25°C
47
Full range
42
Submit Document Feedback
V
1.286
TL2575HV-05
Feedback bias current
V
12.66
TL2575HV-33
IIB
UNIT
3.482
4.9
Full range
8 V ≤ VIN ≤ 60 V,
0.2 A ≤ ILOAD ≤ 1 A
VIN = 30 V, ILOAD = 0.2 A
TL2575HV-15
TL2575HV
MIN
VIN = 12 V, ILOAD = 0.2 A
VIN = 12 V, ILOAD = 0.2 A
TL2575HV-05
TJ
52
58
63
nA
kHz
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
ILOAD = 200 mA, VIN = 12 V for 3.3-V, 5-V, and adjustable versions, VIN = 25 V for 12-V version, VIN = 30 V for 15-V version
(unless otherwise noted) (see Figure 7-1)
PARAMETER
VSAT
Saturation voltage
TEST CONDITIONS
IOUT = 1 A(2)
Maximum duty cycle(3)
ICL
Switch peak current(1) (2)
IL
Output leakage current
IQ
Quiescent current(4)
ISTBY
Standby quiescent current
OFF (ON/OFF = 5 V)
VIH
ON/OFF high-level logic
input voltage
OFF (VOUT = 0 V)
VIL
ON/OFF low-level logic input voltage
ON (VOUT = nominal voltage)
IIH
ON/OFF high-level input current
OFF (ON/OFF = 5 V)
IIL
ON/OFF low-level input current
ON (ON/OFF = 0 V)
(1)
(2)
(3)
(4)
VIN = 60(4), Output = 0 V
VIN = 60(4), Output = –1 V
TJ
TL2575HV
MIN
25°C
TYP
MAX
0.9
1.2
Full range
1.4
25°C
93%
98%
25°C
1.7
2.8
Full range
1.3
3.6
4
2
25°C
7.5
30
UNIT
V
A
mA
25°C
5
10
mA
25°C
50
200
μA
25°C
2.2
Full range
2.4
25°C
1.4
1.2
Full range
25°C
V
1
0.8
V
12
30
μA
0
10
μA
In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to ≈18 kHz and the
minimum duty cycle from 5% to ≈2%. The resulting output voltage drops to ≈40% of its nominal value, causing the average power
dissipated by the IC to lower.
Output is not connected to diode, inductor, or capacitor. Output is sourcing current.
FEEDBACK is disconnected from output and connected to 0 V.
To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V for the adjustable, 3.3-V, and 5-V
versions and to 25 V for the 12-V and 15-V versions.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
7
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
6.7 Typical Characteristics
1
1.4
VIN = 20 V
0.8
TJ = 25°C
1
TJ = 25°C
Output Voltage Change – %
Output Voltage Change – %
0.6
ILOAD = 200 mA
1.2
ILOAD = 200 mA
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-1
-50
-0.6
-25
0
25
50
75
100
125
150
0
10
20
TA – Temperature – °C
Figure 6-1. Normalized Output Voltage
60
2.5
1.5
IO – Output Current – A
Input-Output Differential – V
50
3
DVOUT = 5%
RIND = 0.2 W
1.75
ILOAD = 1 A
1.25
1
0.75
ILOAD = 200 mA
0.5
2
1.5
1
0.5
0.25
0
-40 -25 -10
5
20
35 50
0
-50
65 80 95 110 125
-25
TJ – Junction Temperature – °C
0
25
50
75
100
125
150
TJ – Junction Temperature – °C
Figure 6-4. Current Limit
Figure 6-3. Dropout Voltage
20
500
VON/OFF = 5 V
18
VOUT = 5 V
16
TJ = 25°C
Measured at GND pin
ISTBY – Standby Quiescent Current – µA
IQ – Quiescent Current – mA
40
Figure 6-2. Line Regulation
2
14
12
10
ILOAD = 1 A
8
6
ILOAD = 0.2 A
4
2
0
0
10
20
30
40
50
60
450
VIN = 40 V
400
350
300
250
200
150
100
VIN = 12 V
50
0
-50
VIN – Input Voltage – V
-25
0
25
50
75
100
125
150
TJ – Junction Temperature – °C
Figure 6-5. Quiescent Current
8
30
VIN – Input Voltage – V
Figure 6-6. Standby Quiescent Current
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
1.2
10
Normalized at TJ = 25°C
f NORM – Normalized Frequency – %
8
1.1
VSAT – Saturation Voltage – V
6
VIN = 12 V
4
2
0
VIN = 40 V
-2
-4
-6
TJ = –40°C
0.9
0.8
TJ = 25°C
0.7
0.6
TJ = 125°C
0.5
-8
-10
-50
1
0.4
-25
0
25
50
75
100
125
0
150
0.2
Figure 6-7. Oscillator Frequency
5
0.8
1
100
Adjustable version only
90
80
IIB – Feedback Bias Current – nA
4
VIN – Input Voltage – V
0.6
Figure 6-8. Switch Saturation Voltage
4.5
3.5
3
2.5
2
1.5
1
0.5
0
-50
0.4
ISW – Switch Current – A
TJ – Junction Temperature – °C
-25
0
25
50
75
100
125
150
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-50
TJ – Junction Temperature – °C
Figure 6-9. Minimum Operating Voltage
Adjustable version only
-25
0
25
50
75
100
125
150
TJ – Junction Temperature – °C
Figure 6-10. FEEDBACK Current
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
9
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
7 Parameter Measurement Information
7.1 Test Circuits
Fixed-Output Voltage
FEEDBACK
4
+VIN
TL2575-xx
Fixed Output
1
OUTPUT
3
+
GND
VOUT
330 µH
2
VIN
Unregulated
DC Input
L1
5 ON/OFF
L
O
A
D
D1
CIN
100 µF
+
COUT
330 µF
CIN = 100 µF, Aluminum Electrolytic
COUT = 330 µF, Aluminum Electrolytic
D1 = Schottky
L1 = 330 µH (for 5-V VIN with 3.3-V VOUT, use 100 µH)
Adjustable-Output Voltage
+VIN
1
FEEDBACK
4
TL2575
(ADJ)
OUTPUT
2
7-V to 40-V
Unregulated
DC Input
L1
VOUT
330 µH
R2
+
CIN
100 µF
3 GND
5
ON/OFF
D1
11DQ06
+
L
O
A
D
COUT
330 µF
R1
VOUT = VREF (1 + R2 / R1) = 5 V
VREF = 1.23 V
R1 = 2 kΩ
R2 = 6.12 kΩ
Pin numbers are for the KTT (TO-263) package.
Figure 7-1. Test Circuits and Layout Guidelines
10
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
8 Detailed Description
8.1 Overview
The TL2575 and TL2575HV devices greatly simplify the design of switching power supplies by conveniently
providing all the active functions needed for a step-down (buck) switching regulator in an integrated circuit.
Accepting a wide input-voltage range of up to 60 V (TL2575-HV) and available in fixed output voltages of 3.3 V,
5 V, 12 V, 15 V, or an adjustable-output version, the TL2575 and TL2575HV devices have an integrated switch
capable of delivering 1 A of load current, with excellent line and load regulation. The device also offers internal
frequency compensation, a fixed-frequency oscillator, cycle-by-cycle current limiting, and thermal shutdown. In
addition, a manual shutdown is available via an external ON/OFF pin.
The TL2575 and TL2575HV devices represent superior alternatives to popular three-terminal linear regulators.
Due to their high efficiency, the devices significantly reduce the size of the heatsink and, in many cases,
no heatsink is required. Optimized for use with standard series of inductors available from several different
manufacturers, the TL2575 and TL2575HV greatly simplify the design of switch-mode power supplies by
requiring a minimal addition of only four to six external components for operation.
The TL2575 and TL2575HV devices are characterized for operation over the virtual junction temperature range
of –40°C to 125°C.
8.2 Functional Block Diagram
Unregulated
DC Input
VIN
Internal
Regulator
1
+
ON/OFF
On/Off
5
CIN
FEEDBACK
4
R2
R1
1 kΩ
Fixed-Gain
Error Amplifier
+
_
Comparator
+
_
Driver
1-A
Switch
OUTPUT
2
GND
52-kHz
Oscillator
Reset
Thermal
Shutdown
Current
Limit
3
VOUT
+
D1
1.23-V
Band-Gap
Reference
L1
COUT
L
O
A
D
3.3 V: R2 = 1.7 kΩ
5 V: R2 = 3.1 kΩ
12 V: R2 = 8.84 kΩ
15 V: R2 = 11.3 kΩ
ADJ: R1 = Open, R2 = 0 Ω
Pin numbers are for the KTT (TO-263) package.
8.3 Feature Description
8.3.1 Feedback Connection
For fixed-voltage options, FEEDBACK must be wired to VOUT. For the adjustable version, FEEDBACK must be
connected between the two programming resistors. Again, both of these resistors should be in close proximity to
the regulator, and each should be less than 100 kΩ to minimize noise pickup.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
11
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
8.3.2 ON/OFF Input
ON/OFF should be grounded or be a low-level TTL voltage (typically < 1.6 V) for normal operation. To shut down
the TL2575 or TL2575HV devices and place in standby mode, a high-level TTL or CMOS voltage should be
supplied to this pin. ON/OFF should not be left open and safely can be pulled up to VIN with or without a pullup
resistor.
8.4 Device Functional Modes
8.4.1 Standby Mode
When a high-level TTL or CMOS voltage is applied to the ON/OFF pin, the device enters standby mode, drawing
a typical quiescent current of 50 µA.
12
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
9 Application and Implementation
Note
Information in the following applications sections is not part of the TI component specification, and
TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining
suitability of components for their purposes. Customers should validate and test their design
implementation to confirm system functionality.
9.1 Typical Application
FEEDBACK
4
7-V to 40-V
Unregulated
DC Input
+VIN
TL2575-05
1
3
+
GND
5
OUTPUT
2
L1
L2
330 µH
20 µH
5-V
Regulated
Output
1-A Load
ON/OFF
CIN
100 µF
D1
1N5819
+
COUT
330 µF
C1
100 µF
+
Optional Output Ripple Filter
Pin numbers are for the KTT (TO-263) package.
Figure 9-1. Typical Application Circuit (Fixed Version)
9.1.1 Design Requirements
•
•
•
•
Input capacitor for stability
Output capacitor for loop stability and ripple filtering
Catch diode to filter noise
Output inductor depending on the mode of operation
9.1.2 Detailed Design Procedure
9.1.2.1 Input Capacitor (CIN)
For stability concerns, an input bypass capacitor (electrolytic, CIN ≥ 47 μF) needs to be located as close as
possible to the regulator. For operating temperatures below –25°C, CIN may need to be larger in value. In
addition, since most electrolytic capacitors have decreasing capacitances and increasing ESR as temperature
drops, adding a ceramic or solid tantalum capacitor in parallel increases the stability in cold temperatures.
To extend the capacitor operating lifetime, the capacitor RMS ripple current rating should be calculated as shown
in Equation 1.
IC,RMS > 1.2 (ton / T) ILOAD
(1)
where
•
•
ton/T = VOUT/VIN {buck regulator}
ton/T = |VOUT|/(|VOUT| + VIN) {buck-boost regulator}
9.1.2.2 Output Capacitor (COUT)
For both loop stability and filtering of ripple voltage, an output capacitor is required, again in close proximity
to the regulator. For best performance, low-ESR aluminum electrolytics are recommended, although standard
aluminum electrolytics may be adequate for some applications as shown in Equation 2.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
13
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
Output ripple voltage = (ESR of COUT) × (inductor ripple current)
(2)
Output ripple of 50 mV to 150 mV typically can be achieved with capacitor values of 220 μF to 680 μF. Larger
COUT can reduce the ripple 20 mV to 50 mV peak to peak. To improve further on output ripple, paralleling of
standard electrolytic capacitors may be used. Alternatively, higher-grade capacitors such as high frequency, low
inductance, or low ESR can be used.
The following should be taken into account when selecting COUT:
•
•
•
At cold temperatures, the ESR of the electrolytic capacitors can rise dramatically (typically 3× nominal
value at –25°C). Because solid-tantalum capacitors have significantly better ESR specifications at cold
temperatures, they should be used at operating temperature lower than –25°C. As an alternative, tantalums
can also be paralleled to aluminum electrolytics and should contribute 10% to 20% to the total capacitance.
Low ESR for COUT is desirable for low output ripple. However, the ESR should be greater than 0.05 Ω
to avoid the possibility of regulator instability. Hence, a sole tantalum capacitor used for COUT is most
susceptible to this occurrence.
The ripple current rating of the capacitor, 52 kHz, should be at least 50% higher than the peak-to-peak
inductor ripple current.
9.1.2.3 Catch Diode
As with other external components, the catch diode should be placed close to the output to minimize unwanted
noise. Schottky diodes have fast switching speeds and low forward voltage drops and, thus, offer the best
performance, especially for switching regulators with low output voltages (VOUT < 5 V). If a high-efficiency,
fast-recovery, or ultra-fast-recovery diode is used in place of a Schottky, it should have a soft recovery (versus
abrupt turn-off characteristics) to avoid the chance of causing instability and EMI. Standard 50- to 60-Hz diodes,
such as the 1N4001 or 1N5400 series, are not suitable.
9.1.2.4 Inductor
Proper inductor selection is key to the performance-switching power-supply designs. One important factor to
consider is whether the regulator is used in continuous mode (inductor current flows continuously and never
drops to zero) or in discontinuous mode (inductor current goes to zero during the normal switching cycle). Each
mode has distinctively different operating characteristics and, therefore, can affect the regulator performance
and requirements. In many applications, the continuous mode is the preferred mode of operation, since it
offers greater output power with lower peak currents, and also can result in lower output ripple voltage. The
advantages of continuous mode of operation come at the expense of a larger inductor required to keep inductor
current continuous, especially at low output currents and/or high input voltages.
The TL2575 and TL2575HV devices can operate in either continuous or discontinuous mode. With heavy load
currents, the inductor current flows continuously and the regulator operates in continuous mode. Under light
load, the inductor fully discharges and the regulator is forced into the discontinuous mode of operation. For
light loads (approximately 200 mA or less), this discontinuous mode of operation is perfectly acceptable and
may be desirable solely to keep the inductor value and size small. Any buck regulator eventually operates in
discontinuous mode when the load current is light enough.
The type of inductor chosen can have advantages and disadvantages. If high performance or high quality is
a concern, then more-expensive toroid core inductors are the best choice, as the magnetic flux is contained
completely within the core, resulting in less EMI and noise in nearby sensitive circuits. Inexpensive bobbin core
inductors, however, generate more EMI as the open core does not confine the flux within the core. Multiple
switching regulators located in proximity to each other are particularly susceptible to mutual coupling of magnetic
fluxes from each other’s open cores. In these situations, closed magnetic structures (such as a toroid, pot core,
or E-core) are more appropriate.
Regardless of the type and value of inductor used, the inductor never should carry more than its rated current.
Doing so may cause the inductor to saturate, in which case the inductance quickly drops, and the inductor looks
like a low-value resistor (from the dc resistance of the windings). As a result, switching current rises dramatically
(until limited by the current-by-current limiting feature of the TL2575 and TL2575HV devices) and can result in
overheating of the inductor and the IC itself.
14
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
Note
Different types of inductors have different saturation characteristics.
9.1.2.5 Output Voltage Ripple and Transients
As with any switching power supply, the output of the TL2575 and TL2575HV devices have a sawtooth ripple
voltage at the switching frequency. Typically about 1% of the output voltage, this ripple is due mainly to the
inductor sawtooth ripple current and the ESR of the output capacitor (see Section 9.1.2.2). Furthermore, the
output also may contain small voltage spikes at the peaks of the sawtooth waveform. This is due to the fast
switching of the output switch and the parasitic inductance of COUT. These voltage spikes can be minimized
through the use of low-inductance capacitors.
There are several ways to reduce the output ripple voltage: a larger inductor, a larger COUT, or both. Another
method is to use a small LC filter (20 μH and 100 μF) at the output. This filter can reduce the output ripple
voltage by a factor of 10 (see Figure 7-1).
9.1.2.6 Grounding
The power and ground connections of the TL2575 and TL2575HV devices must be low impedance to help
maintain output stability. For the 5-pin packages, both pin 3 and tab are ground, and either connection can be
used as they are both part of the same lead frame. With the 16-pin package, all the ground pins (including
signal and power grounds) should be soldered directly to wide PCB copper traces to ensure low-inductance
connections and good thermal dissipation.
9.1.2.7 Reverse Current Considerations
There is an internal diode from the output to VIN. Therefore, the device does not protect against reverse current
and care must be taken to limit current in this scenario.
9.1.2.8 Buck Regulator Design Procedure
PROCEDURE (Fixed Output)
EXAMPLE (Fixed Output)
Known:
VOUT = 3.3 V, 5 V, 12 V, or 15 V
VIN(Max) = Maximum input voltage
ILOAD(Max) = Maximum load current
Known:
VOUT = 5 V
VIN(Max) = 20 V
ILOAD(Max) = 1 A
1. Inductor Selection (L1)
1. Inductor Selection (L1)
A. From Figure 9-2 through Figure 9-5, select the appropriate
inductor code based on the intersection of VIN(Max) and ILOAD(Max).
A. From Figure 9-3 (TL2575-05), the intersection of 20-V line and
1-A line gives an inductor code of L330.
B. The inductor chosen should be rated for operation at 52-kHz and
have a current rating of at least 1.15 × ILOAD(Max) to allow for the
ripple current. The actual peak current in L1 (in normal operation)
can be calculated as follows:
IL1(pk) = ILOAD(Max) + (VIN – VOUT) × ton / 2L1
Where ton = VOUT / VIN × (1 / fosc)
B. L330 → L1 = 330 μH
Choose from:
2. Output Capacitor Selection (COUT)
2. Output Capacitor Selection (COUT)
34042 (Schott)
PE-52627 (Pulse Engineering)
RL1952 (Renco)
A. The TL2575 control loop has a two-pole two-zero frequency
A. COUT = 100-μF to 470-μF, standard aluminum electrolytic
response. The dominant pole-zero pair is established by COUT and
L1. To meet stability requirements while maintaining an acceptable
output ripple voltage (Vripple ≉ 0.01 × VOUT), the recommended range
for a standard aluminum electrolytic COUT is between 100 μF and
470 μF.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
15
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
PROCEDURE (Fixed Output)
EXAMPLE (Fixed Output)
B. COUT should have a voltage rating of at least 1.5 × VOUT. But
if a low output ripple voltage is desired, choose capacitors with
a higher-voltage ratings than the minimum required, due to their
typically lower ESRs.
B. Although a COUT rated at 8 V is sufficient for VOUT = 5 V, a
higher-voltage capacitor is chosen for its typically lower ESR (and
hence lower output ripple voltage) → Capacitor voltage rating = 20 V.
3. Catch Diode Selection (D1) (see Table 9-1)
3. Catch Diode Selection (D1) (see Table 9-1)
A. In normal operation, the catch diode requires a current rating
A. Pick a diode with 3-A rating.
of at least 1.2 × ILOAD(Max). For the most robust design, D1 should
be rated to handle a current equal to the TL2575 maximum switch
peak current; this represents the worst-case scenario of a continuous
short at VOUT.
B. The diode requires a reverse voltage rating of at least
1.25 × VIN(Max).
B. Pick 30-V rated Schottky diode (1N5821, MBR330, 31QD03, or
SR303) or 100-V rated Fast Recovery diode (31DF1, MURD310, or
HER302).
4. Input Capacitor (CIN)
4. Input Capacitor (CIN)
An aluminum electrolytic or tantalum capacitor is needed for input
CIN = 100 μF, 25 V, aluminum electrolytic
bypassing. Locate CIN as close to the VIN and GND pins as possible.
PROCEDURE (Adjustable Output)
EXAMPLE (Adjustable Output)
Known:
VOUT(Nom)
VIN(Max) = Maximum input voltage
ILOAD(Max) = Maximum load current
Known:
VOUT = 10 V
VIN(Max) = 25 V
ILOAD(Max) = 1 A
1. Programming Output Voltage (Selecting R1 and R2)
Referring to Figure 6-2, VOUT is defined by:
1. Programming Output Voltage (Selecting R1 and R2)
Select R1 = 1 kΩ
R2 = 1 (10 / 1.23 – 1) = 7.13 kΩ
Select R2 = 7.15 kΩ (closest 1% value)
(
VOUT = VREF 1 + R2
R1
(
where VREF = 1.23 V
Choose a value for R1 between 1 kΩ and 5 kΩ (use 1% metal-film
resistors for best temperature coefficient and stability over time).
VOUT
–1
R2 = R1
VREF
(
(
2. Inductor Selection (L1)
2. Inductor Selection (L1)
A. Calculate the "set" volts-second (E × T) across L1:
E × T = (VIN – VOUT) × ton
E × T = (VIN – VOUT) × (VOUT / VIN) × {1000 / fosc(in kHz)} [V × μs]
A. Calculate the "set" volts-second (E × T) across L1:
E × T = (25 – 10) × (10 / 25) × (1000 / 52) [V × μs]
E × T = 115 V × μs
Note
NOTE: Along with ILOAD, the "set" volts-second (E ×
T) constant establishes the minimum energy storage
requirement for the inductor.
B. Using Figure 9-6, select the appropriate inductor code based on
the intersection of E × T value and ILOAD(Max).
B. Using Figure 9-6, the intersection of 115 V • μs and 1 A
corresponds to an inductor code of H470.
C. The inductor chosen should be rated for operation at 52-kHz and
have a current rating of at least 1.15 x ILOAD(Max) to allow for the
ripple current. The actual peak current in L1 (in normal operation)
can be calculated as follows:
IL1(pk) = ILOAD(Max) + (VIN – VOUT) × ton / 2L1
Where ton = VOUT / VIN × (1 / fosc)
C. H470 → L1 = 470 μH
Choose from:
3. Output Capacitor Selection (COUT)
3. Output Capacitor Selection (COUT)
16
34048 (Schott)
PE-53118 (Pulse Engineering)
RL1961 (Renco)
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
PROCEDURE (Adjustable Output)
EXAMPLE (Adjustable Output)
A. The TL2575 control loop has a two-pole two-zero frequency
response. The dominant pole-zero pair is established by COUT and
L1. To meet stability requirements, COUT must meet the following
requirement:
VIN(Max)
(µF)
COUT ³ 7758
VOUT · L1(µH)
A. COUT ≥ 7785 × 25 / (10 × 470) [μF]
COUT ≥ 41.4 μF
To obtain an acceptable output voltage ripple →
COUT = 220 μF electrolytic
However, COUT may need to be several times larger than the
calculated value above in order to achieve an acceptable output
ripple voltage of ~0.01 × VOUT.
B. COUT should have a voltage rating of at least 1.5 × VOUT. But if a
low output ripple voltage is desired, choose capacitors with a higher
voltage ratings than the minimum required due to their typically lower
ESRs.
4. Catch Diode Selection (D1) (see Table 9-1)
4. Catch Diode Selection (D1) (see Table 9-1)
A. In normal operation, the catch diode requires a current rating of at A. Pick a diode with a 3-A rating.
least 1.2 × ILOAD(Max). For the most robust design, D1 should be rated
for a current equal to the TL2575 maximum switch peak current; this
represents the worst-case scenario of a continuous short at VOUT.
B. The diode requires a reverse voltage rating of at least
1.25 × VIN(Max).
B. Pick a 40-V rated Schottky diode (1N5822, MBR340, 31QD04, or
SR304) or 100-V rated Fast Recovery diode (31DF1, MURD310, or
HER302)
5. Input Capacitor (CIN)
An aluminum electrolytic or tantalum capacitor is needed for input
bypassing. Locate CIN as close to VIN and GND pins as possible.
5. Input Capacitor (CIN)
CIN = 100 μF, 35 V, aluminum electrolytic
Table 9-1. Diode Selection Guide
VR
SCHOTTKY
FAST RECOVERY
1A
3A
20 V
1N5817
MBR120P
SR102
1N5820
MBR320
SR302
30 V
1N5818
MBR130P
11DQ03
SR103
1N5821
MBR330
31DQ03
SR303
40 V
1N5819
MBR140P
11DQ04
SR104
IN5822
MBR340
31DQ04
SR304
50 V
MBR150
11DQ05
SR105
MBR350
31DQ05
SR305
60 V
MBR160
11DQ06
SR106
MBR360
31DQ06
SR306
1A
3A
The following diodes The following diodes
are all rated to 100 V: are all rated to 100 V:
11DF1
31DF1
MUR110
MURD310
HER102
HER302
9.1.2.9 Inductor Selection Guide
Inductor Value Selection Guide for Continuous-Mode Operation
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
17
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
Figure 9-2. TL2575-33
Figure 9-3. TL2575-50
Figure 9-4. TL2575-12
Figure 9-5. TL2575-15
Figure 9-6. TL2575-ADJ
18
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
9.1.3 Application Curves
0.2
0.15
Ripple Voltage – V
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.5
0.6
0.7
0.8
0.9
t – Time – ms
1.6
1.4
ILOAD – Load Current – A
1.2
1
0.8
0.6
0.4
0.2
0
-0.1
0
0.1
0.2
Output ripple voltage: 20 mV/div
0.3
0.4
t – Time – ms
Inductor value selection guide for continuous-mode operation
Figure 9-7. Switching Waveforms
Figure 9-8. Load Transient Response
10 Power Supply Recommendations
This device operates with a power supply range of 4.75 V to 40 V (60 V for the TL2575-HV). A 100-µF
decoupling capacitor is recommended on the input to filter noise.
11 Layout
11.1 Layout Guidelines
With any switching regulator, circuit layout plays an important role in circuit performance. Wiring and parasitic
inductances, as well as stray capacitances, are subjected to rapidly switching currents, which can result in
unwanted voltage transients. To minimize inductance and ground loops, the length of the leads indicated by
heavy lines should be minimized. Optimal results can be achieved by single-point grounding (see Figure 7-1)
or by ground-plane construction. For the same reasons, the two programming resistors used in the adjustable
version should be located as close as possible to the regulator to keep the sensitive feedback wiring short.
11.2 Layout Example
/ON/OFF
FEEDBACK
GND
GND
Connect FEEDBACK
between two output
resistors on adjustable
version.
OUTPUT
VIN
GND
GND
Figure 11-1. Layout Diagram (KV Package)
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
19
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
12 Device and Documentation Support
12.1 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on
Subscribe to updates to register and receive a weekly digest of any product information that has changed. For
change details, review the revision history included in any revised document.
12.2 Support Resources
TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight
from the experts. Search existing answers or ask your own question to get the quick design help you need.
Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do
not necessarily reflect TI's views; see TI's Terms of Use.
12.3 Trademarks
TI E2E™ is a trademark of Texas Instruments.
All trademarks are the property of their respective owners.
12.4 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
12.5 Glossary
TI Glossary
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
20
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
13.1 Package Option Addendum
Packaging Information
Orderable
Device
Status(1)
Package Type
Package
Drawing
Pins
Package Qty
Eco Plan(2)
Lead/Ball
Finish(6)
MSL Peak
Temp(3)
TL2575-05IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-05I
TL2575-05IKTTR
G3
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-05I
TL2575-05IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575-05I
TL2575-05IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575-05IN
TL2575-12IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-12I
TL2575-12IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575-12I
TL2575-12IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575-12IN
TL2575-15IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-15I
TL2575-15IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575-15I
TL2575-15IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575-15IN
TL2575-33IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-33I
TL2575-33IKV
ACTIVE
TO-220
KV
5
500
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575-33I
TL2575-33IN
ACTIVE
PDIP
N
16
50
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575-33IN
TL2575ADJIKTTR
ACTIVE
DDPAK/TO-263
KTT
5
25
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575ADJI
TL2575ADJIKTTRG3
ACTIVE
DDPAK/TO-263
KTT
5
25
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575ADJI
TL2575-ADJIKV
ACTIVE
TO-220
KV
5
500
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575ADJI
TL2575-ADJIN
ACTIVE
PDIP
N
16
50
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575-ADJIN
TL2575-ADJINE4 ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575-ADJIN
TL2575HV-05IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-05I
TL2575HV-05IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575HV-05I
TL2575HV-05IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575HV-05IN
TL2575HV-12IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-12I
TL2575HV-12IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575HV-12I
TL2575HV-12IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575HV-12IN
TL2575HV-15IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-15I
TL2575HV-15IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
TL2575HV-15I
Op Temp (°C)
–40 to 125
Device
Marking(4) (5)
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
21
TL2575, TL2575HV
www.ti.com
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
Orderable
Device
Status(1)
Package Type
Package
Drawing
Pins
Package Qty
Eco Plan(2)
Lead/Ball
Finish(6)
MSL Peak
Temp(3)
Op Temp (°C)
Device
Marking(4) (5)
TL2575HV-15IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575HV-15IN
TL2575HV-33IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-33I
TL2575HV-33IKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575HV-33I
TL2575HV-33IN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575HV-33IN
TL2575HVADJIKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS & Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-ADJI
TL2575HVADJIKV
ACTIVE
TO-220
KV
5
50
RoHS & Green
SN
Level-NC-NC-NC
–40 to 125
TL2575HVADJI
TL2575HV-ADJIN ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
Level-NC-NC-NC
–40 to 125
TL2575HV-ADJIN
TL2575HVADJIKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-ADJI
TL2575ADJIKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575ADJI
TL2575HV-12IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-12I
TL2575-12IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-12I
TL2575HV-15IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-15I
TL2575-33IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-33I
TL2575HV-05IKT
TR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
2BHV-05I
TL2575-05IKTTR
ACTIVE
DDPAK/TO-263
KTT
5
500
RoHS-Exempt &
Green
SN
Level-3-245C-168 –40 to 125
HR
TL2575-05I
(1)
(2)
(3)
22
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PRE_PROD Unannounced device, not in production, not available for mass market, nor on the web, samples not available.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check www.ti.com/productcontent for the latest
availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the
requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified
lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used
between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by
weight in homogeneous material).
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
TL2575, TL2575HV
www.ti.com
(4)
(5)
(6)
SLVS638D – JANUARY 2006 – REVISED JUNE 2022
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
Multiple Device markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a
continuation of the previous line and the two combined represent the entire Device Marking for that device.
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the
finish value exceeds the maximum column width.
Important Information and Disclaimer: The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on
information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming
materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Submit Document Feedback
Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: TL2575 TL2575HV
23
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
K0
P1
B0 W
Reel
Diameter
Cavity
A0
B0
K0
W
P1
A0
Dimension designed to accommodate the component width
Dimension designed to accommodate the component length
Dimension designed to accommodate the component thickness
Overall width of the carrier tape
Pitch between successive cavity centers
Reel Width (W1)
QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE
Sprocket Holes
Q1
Q2
Q1
Q2
Q3
Q4
Q3
Q4
User Direction of Feed
Pocket Quadrants
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
TL2575-05IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.1
4.9
16.0
24.0
Q2
TL2575-05IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575-12IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575-12IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
TL2575-15IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575-33IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.1
4.9
16.0
24.0
Q2
TL2575-33IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575-33IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
TL2575-ADJIKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.1
4.9
16.0
24.0
Q2
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
TL2575-ADJIKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575-ADJIKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
TL2575HV-05IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.1
4.9
16.0
24.0
Q2
TL2575HV-05IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575HV-05IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
TL2575HV-12IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
TL2575HV-12IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575HV-15IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575HV-33IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575HV-33IKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.1
4.9
16.0
24.0
Q2
TL2575HV-ADJIKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
TL2575HV-ADJIKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.3
5.11
16.0
24.0
Q2
TL2575HV-ADJIKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.8
16.1
4.9
16.0
24.0
Q2
Pack Materials-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
TAPE AND REEL BOX DIMENSIONS
Width (mm)
W
L
H
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TL2575-05IKTTR
DDPAK/TO-263
KTT
5
500
350.0
334.0
47.0
TL2575-05IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575-12IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575-12IKTTR
DDPAK/TO-263
KTT
5
500
367.0
367.0
45.0
TL2575-15IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575-33IKTTR
DDPAK/TO-263
KTT
5
500
350.0
334.0
47.0
TL2575-33IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575-33IKTTR
DDPAK/TO-263
KTT
5
500
367.0
367.0
45.0
TL2575-ADJIKTTR
DDPAK/TO-263
KTT
5
500
350.0
334.0
47.0
TL2575-ADJIKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575-ADJIKTTR
DDPAK/TO-263
KTT
5
500
367.0
367.0
45.0
TL2575HV-05IKTTR
DDPAK/TO-263
KTT
5
500
350.0
334.0
47.0
TL2575HV-05IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575HV-05IKTTR
DDPAK/TO-263
KTT
5
500
367.0
367.0
45.0
TL2575HV-12IKTTR
DDPAK/TO-263
KTT
5
500
367.0
367.0
45.0
TL2575HV-12IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575HV-15IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575HV-33IKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
Pack Materials-Page 3
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TL2575HV-33IKTTR
DDPAK/TO-263
KTT
5
500
350.0
334.0
47.0
TL2575HV-ADJIKTTR
DDPAK/TO-263
KTT
5
500
367.0
367.0
45.0
TL2575HV-ADJIKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL2575HV-ADJIKTTR
DDPAK/TO-263
KTT
5
500
350.0
334.0
47.0
Pack Materials-Page 4
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
TUBE
T - Tube
height
L - Tube length
W - Tube
width
B - Alignment groove width
*All dimensions are nominal
Device
Package Name
Package Type
Pins
SPQ
L (mm)
TL2575-05IKV
KV
TL2575-05IN
N
TO-220
5
50
534
PDIP
16
25
506
TL2575-12IKV
KV
TO-220
5
50
534
W (mm)
T (µm)
B (mm)
32.7
700
15.6
13.97
11230
4.32
32.7
700
15.6
TL2575-12IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575-15IKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575-15IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575-33IKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575-33IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575-ADJIKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575-ADJIN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575HV-05IKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575HV-05IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575HV-12IKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575HV-12IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575HV-15IKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575HV-15IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575HV-33IKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575HV-33IN
N
PDIP
16
25
506
13.97
11230
4.32
TL2575HV-ADJIKV
KV
TO-220
5
50
534
32.7
700
15.6
TL2575HV-ADJIN
N
PDIP
16
25
506
13.97
11230
4.32
Pack Materials-Page 5
MECHANICAL DATA
KTT0005B
TS5B (Rev D)
BOTTOM SIDE OF PACKAGE
www.ti.com
IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, regulatory or other requirements.
These resources are subject to change without notice. TI grants you permission to use these resources only for development of an
application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license
is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you
will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these
resources.
TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with
such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for
TI products.
TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2022, Texas Instruments Incorporated
工商网监
湘ICP备2023018690号
