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TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
TPS763xx-Q1 Low-Power, 150-mA, Low-Dropout Linear Regulators
1 Features
3 Description
•
•
The TPS763xx-Q1 family of low-dropout (LDO)
voltage regulators offers the benefits of low-dropout
voltage, low-power operation, and miniaturized
packaging. These regulators feature low dropout
voltages and quiescent currents compared to
conventional LDO regulators. Offered in a 5-pin, small
outline integrated-circuit SOT-23 package, the
TPS763xx-Q1 series devices are ideal for costsensitive designs and for applications where board
space is at a premium.
1
•
•
•
•
•
•
•
•
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to
+125°C Ambient Operating Temperature
– Device HBM ESD Classification Level 1C
– Device CDM ESD Classification Level C3
150-mA Low-Dropout Regulator
Output Voltage: 5 V,3.3 V, 3 V, 2.5 V, 1.8 V, 1.6
V, and Variable
Dropout Voltage, Typically 300 mV at 150 mA
Thermal Protection
Overcurrent Limitation
Less Than 2-µA Quiescent Current in Shutdown
Mode
–40°C to 125°C Operating Junction Temperature
Range
5-Pin SOT-23 (DBV) Package
A combination of new circuit design and process
innovation has enabled the usual pnp pass transistor
to be replaced by a PMOS pass element. Because
the PMOS pass element behaves as a low-value
resistor, the dropout voltage is low—typically 300 mV
at 150 mA of load current (TPS76333-Q1)—and is
directly proportional to the load current. Since the
PMOS pass element is a voltage-driven device, the
quiescent current is low (140 μA maximum) and is
stable over the entire range of output load current (0
mA to 150 mA). Intended for use in portable systems
such as laptops and cellular phones, the low-dropout
voltage feature and low-power operation result in a
significant increase in system battery operating life.
2 Applications
•
•
•
•
RF: VCOs, Receivers, ADCs
Cellular phones
Bluetooth®
Battery-Powered Systems
The TPS763xx-Q1 also features a logic-enabled
sleep mode to shut down the regulator, reducing
quiescent current to 1 μA maximum at TJ = 25°C.The
TPS763xx-Q1 is offered in 1.6-V,1.8-V, 2.5-V, 3-V,
3.3-V, and 5-V fixed-voltage versions and in a
variable version (programmable over the range of 1.5
V to 6.5 V).
Device Information(1)
PART NUMBER
TPS763xx-Q1
PACKAGE
SOT-23 (5)
BODY SIZE (NOM)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
TPS763xx-Q1
1
VI
C1
1 µF
IN
NC/FB
OUT
4
5
VO
3
EN
+
4.7 µF
GND
2
Note:
CSR = 1 Ω
TPS76316-Q1, TPS76318-Q1, TPS76325-Q1, TPS76301-Q1 TPS76333-Q1, TPS76350-Q1 (fixed-voltage options)
1
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.
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
www.ti.com
Table of Contents
1
2
3
4
5
6
7
8
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Voltage Options .....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
1
1
1
2
3
3
4
7.1
7.2
7.3
7.4
7.5
7.6
4
4
4
4
5
6
Absolute Maximum Ratings ......................................
ESD Ratings..............................................................
Recommended Operating Conditions.......................
Thermal Information ..................................................
Electrical Characteristics...........................................
Typical Characteristics ..............................................
Detailed Description ............................................ 10
8.1
8.2
8.3
8.4
Overview .................................................................
Functional Block Diagram .......................................
Feature Description.................................................
Device Functional Modes........................................
10
10
10
11
9
Application and Implementation ........................ 12
9.1 Application Information............................................ 12
9.2 Typical Application ................................................. 12
10 Power Supply Recommendations ..................... 15
11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15
11.2 Layout Example .................................................... 15
11.3 Power Dissipation and Junction Temperature ...... 15
12 Device and Documentation Support ................. 16
12.1
12.2
12.3
12.4
12.5
12.6
12.7
Device Support ....................................................
Documentation Support ........................................
Related Links ........................................................
Community Resource............................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
16
16
16
16
16
17
17
13 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (September 2011) to Revision B
Page
•
Removed 3.8 V, 2.8 V, and 2.7 V output voltage versions from the data sheet ................................................................... 1
•
Removed the TPS76327-Q1, TPS76328-Q1, and TPS76338-Q1 parts from the data sheet................................................ 1
•
Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
•
Deleted Dissipation Ratings .................................................................................................................................................. 6
2
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Copyright © 2011–2016, Texas Instruments Incorporated
Product Folder Links: TPS763-Q1 TPS76301-Q1 TPS76316-Q1 TPS76318-Q1 TPS76325-Q1 TPS76330-Q1
TPS76333-Q1 TPS76350-Q1
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
www.ti.com
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
5 Voltage Options
VOLTAGE
PART NUMBER
SYMBOL
Variable
TPS76301QDBVRQ1
BAN
1.6 V
TPS76316QDBVRQ1
BAD
1.8 V
TPS76318QDBVRQ1
BAP
2.5 V
TPS76325QDBVRQ1
BAQ
3V
TPS76330QDBVRQ1
BAT
3.3 V
TPS76333QDBVRQ1
BAU
5V
TPS76350QDBVRQ1
BAW
6 Pin Configuration and Functions
DBV Package
5-Pin SOT-23
Top View
IN
1
GND
2
EN
3
5
OUT
4
NC/FB
Pin Functions
PIN
NAME
NO.
I/O
DESCRIPTION
EN
3
—
FB
4
I
Enable input
GND
2
—
IN
1
I
NC
4
—
No connection (fixed-voltage option only)
OUT
5
O
Regulated output voltage.
Feedback voltage (TPS76301-Q1 only)
Ground
Input supply voltage
Copyright © 2011–2016, Texas Instruments Incorporated
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Product Folder Links: TPS763-Q1 TPS76301-Q1 TPS76316-Q1 TPS76318-Q1 TPS76325-Q1 TPS76330-Q1
TPS76333-Q1 TPS76350-Q1
3
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
www.ti.com
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
Input voltage
MIN
MAX
UNIT
–0.3
10
V
Voltage at EN
V
Voltage on OUT, FB
V
Peak output current
Internally limited
Operating junction temperature, TJ
–40
150
°C
Storage temperature, Tstg
–65
150
°C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
7.2 ESD Ratings
VALUE
V(ESD)
(1)
Electrostatic discharge
Human-body model (HBM), per AEC Q100-002 (1)
±2000
Charged-device model (CDM), per AEC Q100-011
±500
UNIT
V
AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
Input voltage, VI
Continuous output current, IO
Operating junction temperature, TJ
NOM
MAX
UNIT
2.7
10
V
0
150
mA
–40
125
°C
7.4 Thermal Information
TPS763xx-Q1
THERMAL METRIC (1)
DBV (SOT-23)
UNIT
5 PINS
RθJA
Junction-to-ambient thermal resistance
205.2
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
11.83
°C/W
RθJB
Junction-to-board thermal resistance
34.8
°C/W
ψJT
Junction-to-top characterization parameter
12.2
°C/W
ψJB
Junction-to-board characterization parameter
33.9
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
N/A
°C/W
(1)
4
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
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Product Folder Links: TPS763-Q1 TPS76301-Q1 TPS76316-Q1 TPS76318-Q1 TPS76325-Q1 TPS76330-Q1
TPS76333-Q1 TPS76350-Q1
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
www.ti.com
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
7.5 Electrical Characteristics
over operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = IN, Co = 4.7 μF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TPS76301-Q1
TPS76316-Q1
MIN
TYP
MAX
3.25 V > VI ≥ 2.7 V, 2.5 V ≥ VO ≥ 1.5 V, IO = 1 mA
to 75 mA, TJ = 25°C
0.98VO
VO
1.02VO
3.25 V > VI ≥ 2.7 V, 2.5 V ≥ VO ≥ 1.5 V, IO = 1 mA
to 75 mA,
0.97VO
VO
1.03VO
VI ≥ 3.25 V, 5 V ≥ VO ≥ 1.5 V, IO = 1 mA to 100 mA,
TJ = 25°C
0.98VO
VO
1.02VO
VI ≥ 3.25 V, 5 V ≥ VO ≥ 1.5 V, IO = 1 mA to 100 mA,
0.97VO
VO
1.03VO
VI ≥ 3.25 V, 5 V ≥ VO ≥ 1.5 V, IO = 1 mA to 150 mA,
TJ = 25°C
0.975VO
VO
1.025VO
VI ≥ 3.25 V, 5 V ≥ VO ≥ 1.5 V, IO = 1 mA to 150 mA,
0.9625VO
VO
1.0375VO
VI = 2.7 V, 1 mA < IO < 75 mA, TJ = 25°C
1.568
1.6
1.632
VI = 2.7 V, 1 mA < IO < 75 mA, TJ = 25°C
1.552
1.6
1.648
VI = 3.25 V, 1 mA < IO < 100 mA, TJ = 25°C
1.568
1.6
1.632
VI = 3.25 V, 1 mA < IO < 100 mA, TJ = 25°C
1.552
1.6
1.648
TPS76318-Q1
Output voltage
TPS76325-Q1
TPS76330-Q1
TPS76333-Q1
TPS76350-Q1
1.56
1.6
1.64
VI 3.25 V, 1 mA < IO < 150 mA, TJ = 25°C
1.536
1.6
1.664
VI = 2.7 V, 1 mA < IO < 75 mA, TJ = 25°C
1.764
1.8
1.836
VI = 2.7 V, 1 mA < IO < 75 mA
1.746
1.8
1.854
VI = 3.25 V, 1 mA < IO < 100 mA, TJ = 25°C
1.764
1.8
1.836
VI = 3.25 V, 1 mA < IO < 100 mA
1.746
1.8
1.854
VI = 3.25 V, 1 mA < IO < 150 mA, TJ = 25°C
1.755
1.8
1.845
VI = 3.25 V, 1 mA < IO < 150 mA
1.733
1.8
1.867
IO = 1 mA to 100 mA, TJ = 25°C
2.45
2.5
2.55
IO = 1 mA to 100 mA
2.425
2.5
2.575
IO = 1 mA to 150 mA,, TJ = 25°C
2.438
2.5
2.562
IO = 1 mA to 150 mA
V
V
2.407
2.5
2.593
IO = 1 mA to 100 mA, TJ = 25°C
2.94
3
3.06
IO = 1 mA to 100 mA
2.91
3
3.09
IO = 1 mA to 150 mA, TJ = 25°C
2.925
3
3.075
IO = 1 mA to 150 mA
2.888
3
3.112
IO = 1 mA to 100 mA, TJ = 25°C
3.234
3.3
3.366
IO = 1 mA to 100 mA
3.201
3.3
3.399
IO = 1 mA to 150 mA, TJ = 25°C
3.218
3.3
3.382
IO = 1 mA to 150 mA
3.177
3.3
3.423
IO = 1 mA to 100 mA, TJ = 25°C
4.875
5
5.125
IO = 1 mA to 100 mA
4.825
5
5.175
IO = 1 mA to 150 mA, TJ = 25°C
4.750
5
5.15
V
V
V
IO = 1 mA to 150 mA
I(Q)
4.80
IO = 0 mA to 150 mA, TJ = 25°C (1)
Quiescent current (GND) terminal current)
5
5.2
85
100
µA
IO = 0 mA to 150 mA, see
140
EN < 0.5 V, TJ = 25°C
Standby current
0.5
Output noise voltage
BW = 300 Hz to 50 kHz, Co = 10 μF, TJ = 25°C
PSRR
Ripple rejection
f = 1 kHz, Co = 10 μF, TJ = 25°C (2)
Current limit
TJ = 25°C, see (3)
Output voltage line regulation (ΔVO/VO), (see
(3)
))
140
0.5
See
EN low level input
See (2)
II
EN input current
dB
0.8
1.5
0.04
0.07
A
%/V
0.1
(2)
EN high level input
µV
60
VO + 1 V < VI ≤ 10 V, VI ≥ 3.5 V
VIL
(1)
(2)
(3)
2
(2)
VO + 1 V < VI ≤ 10 V, VI ≥ 3.5 V, TJ = 25°C
VIH
1
µA
EN < 0.5 V
Vn
V
V
VI = 3.25 V, 1 mA < IO < 150 mA, TJ = 25°C
VO
UNIT
1.4
2
V
0.5
1.2
EN = 0 V
–0.01
–0.5
EN = IN
–0.01
–0.5
µa
Minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater.
Test condition includes: output voltage VO = 0 V (for variable device FB is shorted to VO) and pulse duration = 10 ms.
If VO < 2.5 V and VImax = 10 V, VImin = 3.5 V:
Copyright © 2011–2016, Texas Instruments Incorporated
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TPS76333-Q1 TPS76350-Q1
5
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
www.ti.com
Electrical Characteristics (continued)
over operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = IN, Co = 4.7 μF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
IO = 0 mA, TJ = 25°C
MAX
IO = 1 mA, TJ = 25°C
3
IO = 50 mA, TJ = 25°C
120
150
IO = 50 mA
200
IO = 75 mA, TJ = 25°C
TPS76325-Q1
180
225
mV
IO = 75 mA
300
IO = 100 mA, TJ = 25°C
240
300
IO = 100 mA
400
IO = 150 mA, TJ = 25°C
360
450
IO = 150 mA
600
IO = 0 mA, TJ = 25°C
0.2
IO = 1 mA, TJ = 25°C
3
IO = 50 mA, TJ = 25°C
100
125
IO = 50 mA
VDO
Dropout voltage
166
IO = 75 mA, TJ = 25°C
TPS76333-Q1
150
188
mV
IO = 75 mA
250
IO = 100 mA, TJ = 25°C
200
250
IO = 100 mA
333
IO = 150 mA, TJ = 25°C
300
375
IO = 150 mA
500
IO = 0 mA, TJ = 25°C
0.2
IO = 1 mA, TJ = 25°C
2
IO = 50 mA, TJ = 25°C
60
75
IO = 50 mA
100
IO = 75 mA, TJ = 25°C
TPS76350-Q1
UNIT
0.2
90
113
mV
IO = 75 mA
150
IO = 100 mA, TJ = 25°C
120
150
IO = 100 mA
200
IO = 150 mA, TJ = 25°C
180
225
IO = 150 mA
300
7.6 Typical Characteristics
2.505
1.805
VI = 3.5 V
CI = CO = 4.7 µF
TJ = 25°C
VO − Output Voltage − V
VO − Output Voltage − V
2.5
2.495
2.49
2.485
2.48
1.795
1.790
1.785
1.780
1.775
1.770
2.475
0
6
VI = 3.5 V
CI = CO = 4.7 µF
TJ = 25°C
1.800
30
60
90
120
150
180
0
30
60
90
120
150
180
IO − Output Current − mA
IO − Output Current − mA
Figure 1. TPS76325-Q1 Output Voltage vs Output Current
Figure 2. TPS76318-Q1 Output Voltage vs Output Current
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TPS76333-Q1 TPS76350-Q1
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
Typical Characteristics (continued)
2.53
5.01
2.52
VO − Output Voltage − V
5
VO − Output Voltage − V
VI = 3.5 V
CI = CO = 4.7 µF
VI = 6 V
CI = CO = 4.7 µF
TJ = 25°C
4.99
4.98
4.97
4.96
2.51
IO = 1 mA
2.5
IO = 150 mA
2.49
2.48
2.47
−55 −35
4.95
0
60
30
120
90
150
180
−15
5
25
45
65
85
125
105
TJ − Junction Temperature − °C
IO − Output Current − mA
Figure 3. TPS76350-Q1 Output Voltage vs Output Current
Figure 4. TPS76325-Q1 Output Voltage vs Free-Air
Temperature
1.82
5.1
VI = 6 V
CI = CO = 4.7 µF
5.08
1.81
IO = 1 mA
5.06
VO − Output Voltage − V
VO − Output Voltage − V
1.8
1.79
IO = 150 mA
1.78
1.77
1.76
5.04
5.02
IO = 1 mA
5
4.98
4.96
IO = 150 mA
4.94
VI = 3.5 V
CI = CO = 4.7 µF
1.75
1.74
−55 −35
−15
5
25
45
65
85
105
4.92
125
4.9
−55 −35
TJ − Junction Temperature − °C
25
45
65
85
105
125
TJ − Junction Temperature − °C
Figure 5. TPS76318-Q1 Output Voltage vs Free-Air
Temperature
1000
Figure 6. TPS76350-Q1 Output Voltage vs Free-Air
Temperature
3 V Hz
TJ = 25°C
VI = 6 V
CI = CO = 4.7 µF
IO = 0 mA and 150 mA
Ground Current − µ A
5
−15
2.5 V Hz
CO = 10 µF
IO = 150 mA
2 V Hz
CO = 4.7 µF
IO = 150 mA
1.5 V Hz
100
1 V Hz
CO = 4.7 µF
IO = 1 mA
0.5 V Hz
10
−55 −35
−15
5
25
45
65
85
105
125
TJ − Junction Temperature − °C
Figure 7. TPS76350-Q1 Ground Current vs Free-Air
Temperature
Copyright © 2011–2016, Texas Instruments Incorporated
0 V Hz
250
CO = 10 µF
IO = 1 mA
1k
10k
100k
f − Frequency − Hz
Figure 8. Output Noise vs Frequency
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TPS76333-Q1 TPS76350-Q1
7
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
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Typical Characteristics (continued)
10
600
VI = EN = 2.7 V
CI = CO = 4.7 µF
VDO − Dropout Voltage − mV
Zo − Output Impedance − Ω
500
IO = 1 mA
1
IO = 150 mA
300
200
0.1
1
10
100
0
−55 −35
1000
Figure 9. Output Impedance vs Frequency
IO = 1 mA
IO = 150 mA
20
10
CO = 4.7 µF
ESR = 1 Ω
TJ = 25°C
1k
10 k
100 k
1M
10 M
200
100
0
CO = 4.7 µF
ESR = 0.25 Ω
TJ = 25°C
CO = 4.7 µF
ESR = 0.25 Ω
TJ = 25°C
20
0
dv
dt
−20
0
20
−100
−150
40
60
80 100 120 140 160 180 200
t − Time − µs
Figure 13. TPS76318-Q1 Load Transient Response
8
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40
60
80 100 120 140 160 180 200
t − Time − µs
8
dv
1V
=
10 ms
dt
7
6
5
∆ VO − Change in
Output Voltage − mV
∆ VO − Change in
Output Voltage − mV
−50
1V
10 s
−30
CO = 4.7 µF
ESR = 0.25 Ω
TJ = 25°C
50
0
20
125
Figure 12. TPS76318-Q1 Line Transient Response
VI − Input Voltage − V
I O − Output Current − mA
Figure 11. TPS76325-Q1 Ripple Rejection vs Frequency
0
105
2
f − Frequency − Hz
50
85
65
3
1
100
45
4
30
−10
10
25
5
∆ VO − Change in
Output Voltage − mV
Ripple Rejection − dB
50
40
5
Figure 10. TYPS76325-Q1 Dropout Voltage vs Free-Air
Temperature
VI − Input Voltage − V
70
60
−15
TJ − Junction Temperature − °C
f − Frequency − kHz
0
1 mA
0 mA
100
CI = CO = 4.7 µF
ESR = 1 Ω
TJ = 25°C
0.1
0.01
150 mA
400
0
−50
−100
0
50
100 150 200 250 300 350 400 450 500
t − Time − µs
Figure 14. TPS76350-Q1 Line Transient Response
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Product Folder Links: TPS763-Q1 TPS76301-Q1 TPS76316-Q1 TPS76318-Q1 TPS76325-Q1 TPS76330-Q1
TPS76333-Q1 TPS76350-Q1
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
Typical Characteristics (continued)
CSR − Compensation Series Resistance − Ω
I O − Output Current − mA
100
200
CO = 4.7 µF
ESR = 0.25 Ω
TJ = 25°C
100
0
∆ VO − Change in
Output Voltage − mV
150
100
0
−100
Region of Instability
10
0.1
Region of Instability
0.01
−200
0
20
40
60
50
100
150
200
250
IO − Output Current − mA
Figure 16. Typical Regions of Stability Compensation Series
Resistance (CSR) vs Output Current
100
100
CSR − Compensation Series Resistance − Ω
CSR − Compensation Series Resistance − Ω
0
80 100 120 140 160 180 200
t − Time − µs
Figure 15. TPS76350-Q1 Load Transient Response
Region of Instability
10
I = 150 mA
CO = 4.7 µF
TJ = 25°C
1
0.1
Region of Instability
0.01
CO = 4.7 µF
TJ = 25°C
1
0
0.1
0.2 0.3 0.4 0.5
0.6 0.7 0.8
0.9
Region of Instability
10
0.1
Region of Instability
0.01
1
CO = 10 µF
1
0
50
100
150
200
250
Added Ceramic Capacitance − µF
IO − Output Current − mA
Figure 17. Typical Regions of Stability Compensation Series
Resistance (CSR) vs Added Ceramic Capacitance
Figure 18. Typical Regions of Stability Compensation Series
Resistance (CSR) vs Output Current
CSR − Compensation Series Resistance − Ω
100
Region of Instability
10
CO = 10 µF
1
0.1
Region of Instability
0.01
0
0.1
0.2 0.3 0.4 0.5
0.6 0.7 0.8
0.9
1
Added Ceramic Capacitance − µF
Figure 19. Typical Regions of Stability Compensation Series Resistance (CSR) vs Added Ceramic
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9
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
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8 Detailed Description
8.1 Overview
The TPS763xx-Q1 low-dropout (LDO) regulators are new families of regulators which have been optimized for
use in battery-operated equipment and feature low dropout voltages, low quiescent current (140 μA), and an
enable input to reduce supply currents to less than 2 μA when the regulator is turned off.
8.2 Functional Block Diagram
TPS76301-Q1
OUT
IN
EN
VREF
Current Limit/
Thermal
Protection
FB
GND
TPS76316/18/25/30/33/50-Q1
OUT
IN
EN
VREF
Current Limit/
Thermal
Protection
GND
8.3 Feature Description
8.3.1 Regulator Protection
The TPS763xx-Q1 pass element has a built-in back diode that safely conducts reverse currents when the input
voltage drops below the output voltage (for example, during power down). Current is conducted from the output
to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be
appropriate.
The TPS763xx-Q1 also features internal current limiting and thermal protection. During normal operation, the
TPS763xx-Q1 limits output current to approximately 800 mA. When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds 165°C, thermal-protection circuitry shuts it down. Once the device has cooled
down to below 140°C, the regulator operation resumes.
10
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TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
8.4 Device Functional Modes
8.4.1 Normal Operation
The device regulates to the nominal output voltage under the following conditions:
• The input voltage is at least as high as VIN(min).
• The input voltage is greater than the nominal output voltage added to the dropout voltage.
• The enable voltage is greater than VEN(min).
• The output current is less than the current limit.
• The device junction temperature is less than the maximum specified junction temperature.
8.4.2 Dropout Operation
If the input voltage is lower than the nominal output voltage plus the specified dropout voltage, but all other
conditions are met for normal operation, the device operates in dropout mode. In this mode of operation, the
output voltage is the same as the input voltage minus the dropout voltage. The transient performance of the
device is significantly degraded because the pass device is in the linear region and no longer controls the current
through the LDO. Line or load transients in dropout can result in large output voltage deviations.
8.4.3 Disabled
The device is disabled under the following conditions:
• The enable voltage is less than the enable falling threshold voltage or has not yet exceeded the enable rising
threshold.
• The device junction temperature is greater than the thermal shutdown temperature.
• The input voltage is less than UVLOfalling.
Table 1 shows the conditions that lead to the different modes of operation.
Table 1. Device Functional Mode Comparison
OPERATING
MODE
PARAMETER
VIN
VEN
IOUT
TJ
Normal mode
VIN > VOUT(nom) + VDO and VIN >
VIN(min)
VEN > VEN(high)
IOUT < ILIM
TJ < 125°C
Dropout mode
VIN(min) < VIN < VOUT(nom) + VDO
VEN > VEN(high)
—
TJ < 125°C
Disabled mode
(any true
condition
disables the
device)
VIN < UVLOfalling
VEN < VEN(low)
—
TJ > 165°C (1)
(1)
Approximate value for thermal shutdown
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11
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
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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 Application Information
The TPS763xx-Q1 low-dropout (LDO) regulators are new families of regulators which have been optimized for
use in battery-operated equipment and feature low dropout voltages, low quiescent current (140 μA), and an
enable input to reduce supply currents to less than 2 μA when the regulator is turned off.
The TPS763xx-Q1 uses a PMOS pass element to dramatically reduce both dropout voltage and supply current
over more conventional PNP pass element LDO designs. The PMOS pass element is a voltage-controlled device
that, unlike a PNP transistor, does not require increased drive current as output current increases. Supply current
in the TPS763xx-Q1 is essentially constant from no-load to maximum load.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 1 A; further load reduces the output voltage
instead of increasing the output current. The thermal protection shuts the regulator off if the junction temperature
rises above 165°C. Recovery is automatic when the junction temperature drops approximately 25°C below the
high temperature trip point. The PMOS pass element includes a back diode that safely conducts reverse current
when the input voltage level drops below the output voltage level.
A logic low on the enable input, EN shuts off the output and reduces the supply current to less than 2 μA. EN
should be tied high in applications where the shutdown feature is not used.
9.2 Typical Application
A typical application circuit is shown in Figure 20.
TPS763xx-Q1
1
VI
C1
1 µF
IN
NC/FB
OUT
4
5
VO
3
EN
+
4.7 µF
GND
2
Note:
CSR = 1 Ω
TPS76316-Q1, TPS76318-Q1, TPS76325-Q1, TPS76301-Q1 TPS76333-Q1, TPS76350-Q1 (fixed-voltage options)
Figure 20. Typical Application Circuit
12
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TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
Typical Application (continued)
9.2.1 Design Requirements
Table 2 lists the design requirements.
Table 2. Design Parameters
PARAMETER
DESIGN REQUIREMENTS
Input voltage
2.7 to 10 V
Output voltage
2.5 to 6.45 V
Output current
0 to 150 mA
9.2.2 Detailed Design Procedure
9.2.2.1 External Capacitor Requirements
Although not required, a 0.047 μF or larger ceramic bypass input capacitor, connected between IN and GND and
located close to the TPS763xx-Q1, is recommended to improve transient response and noise rejection. A highervalue electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the
device is located several inches from the power source.
Like all low dropout regulators, the TPS763xx-Q1 requires an output capacitor connected between OUT and
GND to stabilize the internal loop control. The minimum recommended capacitance value is 4.7 μF and the ESR
(equivalent series resistance) must be between 0.3 Ω and 10 Ω. Capacitor values of 4.7 μF or larger are
acceptable, provided the ESR is less than 10 Ω. Solid tantalum electrolytic, aluminum electrolytic, and multilayer
ceramic capacitors are all suitable, provided they meet the requirements described above. Most of the
commercially available 4.7-μF surface-mount solid tantalum capacitors, including devices from Sprague, Kemet,
and Nichico, meet the ESR requirements stated above.
Table 3. Capacitor Selection
PART NO.
MFR.
VALUE
MAX ESR
SIZE (H × L × W)
T494B475K016AS
KEMET
4.7 μF
1.5 Ω
1.9 × 3.5 × 2.8
195D106x0016x2T
SPRAGUE
10 μF
1.5 Ω
1.3 × 7.0 × 2.7
695D106x003562T
SPRAGUE
10 μF
1.3 Ω
2.5 × 7.6 × 2.5
AVX
4.7 μF
0.6 Ω
2.6 × 6.0 × 3.2
TPSC475K035R0600
9.2.2.2 Output Voltage Programming
The output voltage of the TPS76301-Q1 adjustable regulator is programmed using an external resistor divided as
shown in figure 21. The output voltage is calculated using Equation 1.
VO = 0.995 × VREF × (1 + R1/R2)
where
•
•
VREF = 1.192 V typical (the internal reference voltage)
0.995 is a constant used to center the load regulator (1%)
(1)
Resistors R1 and R2 should be chosen for approximately 7-μA divider current. Lower value resistors can be
used, but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 169 kΩ
to set the divider current at 7 μA and then calculate R1 using Equation 2.
- (VO + 1)
V (V
´ 1000
Line Re g. (mV) = (% / V) ´ O Imax
100
(2)
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13
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
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TPS76301-Q1
VI
1 µF
1
IN
OUT
≥2 V
≤ 0.5 V
3
5
VO
R1
EN
4
+
FB
4.7 µF
GND
2
R2
CSR = 1 Ω
Figure 21. TPS76301-Q1 Adjustable LDO Regulator Programming
Table 4. Output Voltage Programming Guide
OUTPUT VOLTAGE (V)
(1)
DIVIDER RESISTANCE (kΩ) (1)
R1
R2
2.5
187
169
3.3
301
169
3.6
348
169
4
402
169
5
549
169
6.45
750
169
1% values shown.
dv
1V
=
10 ms
dt
7
6
5
CO = 4.7 µF
ESR = 0.25 Ω
TJ = 25°C
∆ VO − Change in
Output Voltage − mV
50
0
−50
−100
200
CO = 4.7 µF
ESR = 0.25 Ω
TJ = 25°C
100
0
150
100
0
−100
−200
0
50
100 150 200 250 300 350 400 450 500
t − Time − µs
Figure 22. TPS76350-Q1 Line Transient Response
14
I O − Output Current − mA
8
∆ VO − Change in
Output Voltage − mV
VI − Input Voltage − V
9.2.3 Application Curves
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0
20
40
60
80 100 120 140 160 180 200
t − Time − µs
Figure 23. TPS76350-Q1 Load Transient Response
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TPS76333-Q1 TPS76350-Q1
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
10 Power Supply Recommendations
These devices are designed to operate from an input voltage supply range from 2.7 V to 10 V. The input voltage
range must provide adequate headroom in order for the device to have a regulated output. This input supply
must be well-regulated and stable. Although not required, a 0.047-μF or larger ceramic bypass input capacitor,
connected between IN and GND and located close to the TPS763xx-Q1, is recommended to improve transient
response and noise rejection. A higher-value electrolytic input capacitor may be necessary if large, fast-rise-time
load transients are anticipated and the device is located several inches from the power source.
11 Layout
11.1 Layout Guidelines
Layout is a critical part of good power-supply design. There are several signal paths that conduct fast-changing
currents or voltages that can interact with stray inductance or parasitic capacitance to generate noise or degrade
the power-supply performance. To help eliminate these problems, the IN pin should be bypassed to ground with
a low ESR ceramic bypass capacitor with an X5R or X7R dielectric.
Equivalent series inductance (ESL) and equivalent series resistance (ESR) must be minimized to maximize
performance and ensure stability. Every capacitor (CIN, COUT) must be placed as close as possible to the device
and on the same side of the PCB as the regulator itself.
Do not place any of the capacitors on the opposite side of the PCB from where the regulator is installed. The use
of vias and long traces is strongly discouraged because these circuits may impact system performance
negatively, and even cause instability.
11.2 Layout Example
Input Plane
Output Ground
IN
Input Ground
Output Plane
OUT
GND
EN
FB
Figure 24. Recommended Layout
11.3 Power Dissipation and Junction Temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
allowable to avoid damaging the device is 150°C. This restriction limits the power dissipation the regulator can
handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the
maximum allowable dissipation, PD(max) and the actual dissipation, PD, which must be less than or equal to
PD(max).
The maximum-power-dissipation limit is determined using Equation 3.
PD(max) = TJ(max) – TA / RθJA
where
•
•
•
TJ(max) is the maximum allowable junction temperature
RθJA is the thermal resistance junction-to-ambient for the package, see Thermal Information
TA is the ambient temperature
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(3)
15
TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
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SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
www.ti.com
Power Dissipation and Junction Temperature (continued)
Use Equation 4 to calculate the regulator dissipation.
PD = (VI – VO) × IO
(4)
Power dissipation resulting from quiescent current is negligible.
12 Device and Documentation Support
12.1 Device Support
12.1.1 Third-Party Products Disclaimer
TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT
CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES
OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER
ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.
12.2 Documentation Support
12.2.1 Related Documentation
TPS793xx-Q1 Ultralow-Noise, High-PSRR, Fast RF 200-mA Low-Dropout Linear Regulators, SGLS162
12.3 Related Links
The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to sample or buy.
Table 5. Related Links
PARTS
PRODUCT FOLDER
SAMPLE & BUY
TECHNICAL
DOCUMENTS
TOOLS &
SOFTWARE
SUPPORT &
COMMUNITY
TPS763-Q1
Click here
Click here
Click here
Click here
Click here
TPS76301-Q1
Click here
Click here
Click here
Click here
Click here
TPS76316-Q1
Click here
Click here
Click here
Click here
Click here
TPS76318-Q1
Click here
Click here
Click here
Click here
Click here
TPS76325-Q1
Click here
Click here
Click here
Click here
Click here
TPS76330-Q1
Click here
Click here
Click here
Click here
Click here
TPS76333-Q1
Click here
Click here
Click here
Click here
Click here
TPS76350-Q1
Click here
Click here
Click here
Click here
Click here
12.4 Community Resource
The following links connect to TI community resources. Linked contents are 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.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
12.5 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
16
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TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1
TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1
www.ti.com
SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016
12.6 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
12.7 Glossary
SLYZ022 — 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.
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17
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
TPS76301QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAN
TPS76301QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAN
TPS76316QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAO
TPS76318QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAP
TPS76318QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAP
TPS76325QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAQ
TPS76330QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAT
TPS76333QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAU
TPS76333QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAU
TPS76350QDBVRG4Q1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAW
TPS76350QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
BAW
(1)
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.
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.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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