TLE4276
Low Drop Voltage Regulator
Features
•
5 V, and variable output voltage
•
Output voltage tolerance ≤ ±4%
•
400 mA current capability
•
Low-drop voltage
•
Inhibit input
•
Very low current consumption
•
Short-circuit-proof
•
Reverse polarity proof
•
Suitable for use in automotive electronics
•
Green Product (RoHS compliant)
•
AEC Qualified
Product validation
Qualified for Automotive Applications. Product Validation according to AEC-Q100/101
Description
Type
Package
Marking
TLE4276SV
PG-TO220-5
4276V
TLE4276GV50
PG-TO263-5
4276V50
TLE4276GV
PG-TO263-5
4276V
TLE4276DV50
PG-TO252-5
4276V50
TLE4276DV
PG-TO252-5
4276V
Data Sheet
www.infineon.com
1
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Table of Contents
1
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
2.1
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
3.1
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Performance Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Data Sheet
2
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Block Diagram
1
Block Diagram
Saturation
Control and
Protection
Circuit
Temperature
Sensor
Ι
1
6
Control
Amplifier
Q
Buffer
Bandgap
Reference
*)
**)
2
4
3
INH
VA
GND
*) For fixed Voltage Regulator only
**) For adjustable Voltage Regulator only
Figure 1
Data Sheet
AEB02044
Block Diagram
3
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Pin Configuration
2
Pin Configuration
2.1
Pin Assignments
PG-TO220-5-12
PG-TO263-5-1
PG-TO252-5-11
GND
1
5
1
5
Ι
5
1
Ι
GND
INH
Q
INH N.C.
(VA)
Q
AEP02560
N.C.
(VA)
AEP02043
Ι
GND
INH
Q
N.C.
(VA)
AEP02042
Figure 2
Pin Configuration (top view)
Table 1
Pin Definitions and Functions
Pin No.
Symbol
Function
1
I
Input; block to ground directly at the IC with a ceramic capacitor.
2
INH
Inhibit; low-active input.
3
GND
Ground
4
N.C.
VA
Not connected for V50
Voltage Adjust Input; only for adjustable version. Connect an external voltage
divider to determine the output voltage.
5
Q
Output; block to GND with a ≥ 22 µF capacitor, ESR ≤ 3 Ω at 10 kHz
Heatsink
Data Sheet
Connect to GND.
4
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
3
Functional Description
Functional Description
The TLE4276 is a low-drop voltage regulator in a TO package. The IC regulates an input voltage up to 40 V to
VQ,nom = 5.0 V (V50), and adjustable voltage (V). The maximum output current is 400 mA. The IC can be switched
off via the inhibit input, which causes the current consumption to drop below 10 µA. The IC is short-circuitproof and includes temperature protection which turns off the device at overtemperature.
Dimensioning Information on External Components
The input capacitor CI is necessary for compensation of line influences. Using a resistor of approx. 1 Ω in series
with CI, the oscillating of input inductivity and input capacitance can be damped. The output capacitor CQ is
necessary for the stability of the regulation circuit. Stability is guaranteed at values CQ ≥ 22 μF and an ESR of
≤ 3 Ω within the operating temperature range.
Circuit Description
The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and
drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents
any oversaturation of the power element. The IC also incorporates a number of internal circuits for protection
against:
•
Overload
•
Overtemperature
•
Reverse polarity
Data Sheet
5
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
Table 2
Absolute Maximum Ratings
Parameter
Symbol
Limit Values
Min.
Max.
Unit
Test Condition
Input I
Voltage
VI
-42
45
V
–
Current
II
–
–
–
Internally limited
VINH
-42
45
V
–
VVA
-0.3
10
V
–
Voltage
VQ
-1.0
40
V
–
Current
IQ
–
–
–
Internally limited
IGND
–
100
mA
–
Junction temperature
Tj
-40
150
°C
–
Storage temperature
Tstg
-50
150
°C
–
Inhibit INH
Voltage
Voltage Adjust Input VA
Voltage
Output Q
Ground GND
Current
Temperature
Note:
Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible
damage to the integrated circuit.
Table 3
ESD Rating
Parameter
ESD Capability
Data Sheet
Symbol
VESD,HBM
Limit Values
Min.
Max.
2000
–
6
Unit
Notes
V
Human Body Model
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
Table 4
Operating Range
Parameter
Symbol
Limit Values
Min.
Max.
Unit
Remarks
Input voltage
VI
VQ + 0.5
40
V
Fixed voltage devices V50
Input voltage
VI
VQ + 0.5
40
V
Variable device V
Input voltage
VI
4.5 V
40
V
Variable device V,
VQ < 4 V
Junction temperature
Tj
-40
150
°C
–
Junction ambient
Rthj-a
–
65
K/W
TO220
Junction ambient
Rthj-a
–
80
K/W
TO252, TO2631)
Thermal Resistance
Junction case
Rthj-c
–
4
K/W
–
;
35µ
Cu;
5µ
Sn;
Footprint
only;
zero
airflow.
1)Package mounted on PCB 80 × 80 × 1.5 mm
Data Sheet
7
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
Table 5
Characteristics
VI = 13.5 V; -40 °C < Tj < 150 °C (unless otherwise specified)
Parameter
Symbol
Limit Values
Min.
Typ.
Max.
Unit
Measuring Condition
Measuring
Circuit
Output voltage
VQ
4.8
5.0
5.2
V
V50-Version
5 mA < IQ < 400 mA
6 V < VI < 28 V
1
Output voltage
VQ
4.8
5.0
5.2
V
V50-Version
5 mA < IQ < 200 mA
6 V < VI < 40 V
1
Output voltage
tolerance
∆VQ
-4
–
4
%
V-Version
R2 < 50 kΩ
VQ + 1 V ≤ VI ≤ 40 V
VI > 4.5 V
5 mA ≤ IQ ≤ 400 mA
1
Output current
limitation1)
IQ
400
600
1100
mA
–
1
Current
consumption;
Iq = II - IQ
Iq
–
–
10
µA
VINH = 0 V;
Tj ≤ 100 °C
1
Current
consumption;
Iq = II - IQ
Iq
–
100
220
µA
IQ = 1 mA
1
Current
consumption;
Iq = II - IQ
Iq
–
5
10
mA
IQ = 250 mA
1
Current
consumption;
Iq = II - IQ
Iq
–
15
25
mA
IQ = 400 mA
1
Drop voltage1)
VDR
–
250
500
mV
V50
IQ = 250 mA
VDR = VI - VQ
1
Drop voltage1)
VDR
–
250
500
mV
variable devices
IQ = 250 mA
VI > 4.5 V
VDR = VI - VQ
1
Load regulation
∆VQ,Lo
–
5
35
mV
IQ = 5 mA to 400 mA
1
Line regulation
∆VQ,Li
–
15
25
mV
∆Vl = 12 V to 32 V
IQ = 5 mA
1
Power supply ripple PSRR
rejection
–
54
–
dB
fr = 100 Hz;
Vr = 0.5 Vpp
1
Temperature output ∆VQ/dT
voltage drift
–
0.5
–
–
–
mV/K
Data Sheet
8
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
Table 5
Characteristics (cont’d)
VI = 13.5 V; -40 °C < Tj < 150 °C (unless otherwise specified)
Parameter
Symbol
Limit Values
Min.
Typ.
Max.
Unit
Measuring Condition
Measuring
Circuit
Inhibit
Inhibit on voltage
VINH
–
2
3.5
V
VQ ≥ 4.9 V
1
Inhibit off voltage
VINH
0.5
1.7
–
V
VQ ≤ 0.1 V
1
Input current
IINH
5
10
20
µA
VINH = 5 V
1
1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V.
II
Input
100 µF
IQ
5 Q
I 1
Output
CQ
100 nF
22 µF
TLE 4276
IINH
VI
INH
2
VINH
*) Optional
4
3
GND
R 1*)
VQ
*)
VA Voltage
Adjust
R 2*)
for adjustable Voltage Regulator
Figure 3
RL
AES02045
Measuring Circuit
I 1
Input
CI
e.g. KL 15
2
4
3
GND
*) Optional
Figure 4
Data Sheet
CQ
TLE 4276
INH
Output
5 Q
R 1*)
*)
VA
Voltage
Adjust
for adjustable Voltage Regulator
R 2*)
AES02046
Application Circuit
9
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
Application Information for Variable Output Regulator TLE 4276 V
The output voltage of the TLE 4276 V can be adjusted between 2.5 V and 20 V by an external output voltage
divider, closing the control loop to the voltage adjust pin VA.
The voltage at pin VA is compared to the internal reference of typical 2.5 V in an error amplifier. It controls the
output voltage.
5 Q
Internal
Reference
2.5 V Typical
Current
and
Saturation
Control
Vref
R1
CQ
22 µF
4 VA
R2
AEB02804
Figure 5
Application Detail External Components at Output for Variable Voltage Regulator
The output voltage is calculated according to Equation (3.1):
VQ = (R1 + R2)/R2 × Vref, neglecting IVA
(3.1)
Vref is typically 2.5 V.
To avoid errors caused by leakage current IVA, we recommend to choose the resistor value R2 according to
Equation (3.2):
R2 < 50 kΩ
(3.2)
For a 2.5 V output voltage the output pin Q is directly connected to the adjust pin VA.
The accuracy of the resistors R1 and R2 add an additional error to the output voltage tolerance.
The operation range of the variable TLE 4276 V is VQ + 0.5 V to 40 V. For internal biasing a minimum input
voltage of 4.3 V is required. For output voltages below 4 V the voltage drop is 4.3 V - VQ
Data Sheet
10
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
3.1
Typical Performance Graphs
Typical Performance Characteristics V50
Voltage VDR versus
Output Current IQ
Current Consumption Iq versus
Output Current IQ (high load)
AED03017
600
mV
VDR
IQ
AED03020
800
mA
500
600
T j = 125 ˚C
400
T j = 25 ˚C
VQ = 0 V
300
400
200
T j = 25 ˚C
200
100
0
0
100
200
0
300 mA 400
0
10
20
30
40 V 50
IQ
Max. Output Current IQ versus
Input Voltage VI
VI
Current Consumption Iq versus
Output Current IQ (low load)
AED03021
60
AED03022
0.6
Iq mA
Iq mA
50
0.5
40
0.4
T j = 25 ˚C
VI = 13.5 V
0.3
30
T j = 25 ˚C
VI = 13.5 V
20
0.2
10
0.1
0
0
100
200 300 400
0
mA 600
Data Sheet
0
10
20
30
40
mA
60
IQ
IQ
11
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Functional Description
Output Voltage VQ versus
Temperature TJ
Current Consumption Iq versus
Input Voltage VI
AED03081
5.2
VQ
AED01967
30
V
Ιq
mA
5.1
20
VI = 13.5 V
T j = 25 C
R L = 20 Ω
5.0
10
4.9
4.8
-40
0
40
80
0
120 ˚C 160
0
10
20
30
Tj
Low Voltage Behavior
High Voltage Behavior
AED01968
6
VQ
50
V
VΙ
V
VQ
5
AED03082_4276
3.5
mA
II
3.0
2.5
4
2.0
VI = VQ
1.5
3
T j = 25 ˚C
R L = 20 Ω
T j = 25 ˚C
R L = 6.8 k Ω
1.0
2
0.5
1
0
0
0
2
4
6
-2
-50
8 V 10
Data Sheet
-25
0
25
V
50
VI
VI
12
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Package Outlines
Package Outlines
A
B
8.5 1)
3.7 -0.15
1.27 ±0.1
2.8 ±0.2
13
C
0.05
2.4
0.5 ±0.1
0...0.15
2.4
5 x 0.8 ±0.1
4 x 1.7
1)
Figure 6
9.25 ±0.2
0...0.3
4.4
11 ±0.5
1)
12.95
17 ±0.3
15.65 ±0.3
10 ±0.2
9.9 ±0.2
±0.5
4
0.25
M
A B C
Typical
Metal surface min. X = 7.25, Y = 12.3
All metal surfaces tin plated, except area of cut.
PG-TO220-5
4.4
10 ±0.2
1.27 ±0.1
A
8.5 1)
B
0.05
2.4
0.1
2.7 ±0.3
4.7 ±0.5
7.55 1)
9.25 ±0.2
(15)
1±0.3
0...0.3
0...0.15
5 x 0.8 ±0.1
0.5 ±0.1
4 x 1.7
0.25
M
A B
8° MAX.
0.1 B
1) Typical
Metal surface min. X = 7.25, Y = 6.9
All metal surfaces tin plated, except area of cut.
PG-TO263-5-1-PO V01
Figure 7
Data Sheet
PG-TO263-5
13
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Package Outlines
6.5 +0.15
-0.05
A
1)
2.3 +0.05
-0.10
0.9 +0.20
-0.01
0...0.15
0.51 MIN.
0.15 MAX.
per side
0.5 +0.08
-0.04
B
(5)
0.8 ±0.15
(4.24) 1 ±0.1
9.98 ±0.5
6.22 -0.2
5.7 MAX.
5 x 0.6 ±0.1
0.5 +0.08
-0.04
1.14
4.56
0.1 B
0.25 M A B
1) Includes mold flashes on each side.
All metal surfaces tin plated, except area of cut.
Figure 8
PG-TO252-5
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be compliant
with government regulations the device is available as a green product. Green products are RoHS-Compliant
(i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
For further information on alternative packages, please visit our website:
http://www.infineon.com/packages.
Data Sheet
14
Dimensions in mm
Rev. 2.8
2018-01-10
TLE4276
Low Drop Voltage Regulator
Revision History
5
Revision History
Revision Date
Changes
2.80
Deleted obsolete products: TLE4276V50, TLE4276V85, TLE4276V10,
TLE4276SV50,TLE4276SV85, TLE4276GV85 and TLE4276GV10
Updated Template
Data Sheet
2018-01-10
15
Rev. 2.8
2018-01-10
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2018-01-10
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2004 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
IMPORTANT NOTICE
The information given in this document shall in no
event be regarded as a guarantee of conditions or
characteristics ("Beschaffenheitsgarantie").
With respect to any examples, hints or any typical
values stated herein and/or any information regarding
the application of the product, Infineon Technologies
hereby disclaims any and all warranties and liabilities
of any kind, including without limitation warranties of
non-infringement of intellectual property rights of any
third party.
In addition, any information given in this document is
subject to customer's compliance with its obligations
stated in this document and any applicable legal
requirements, norms and standards concerning
customer's products and any use of the product of
Infineon Technologies in customer's applications.
The data contained in this document is exclusively
intended for technically trained staff. It is the
responsibility of customer's technical departments to
evaluate the suitability of the product for the intended
application and the completeness of the product
information given in this document with respect to
such application.
For further information on technology, delivery terms
and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
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Due to technical requirements products may contain
dangerous substances. For information on the types
in question please contact your nearest Infineon
Technologies office.
Except as otherwise explicitly approved by Infineon
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authorized representatives of Infineon Technologies,
Infineon Technologies’ products may not be used in
any applications where a failure of the product or any
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