Data Sheet 1 Rev. 2.81
www.infineon.com/OPTIREG-Linear 2019-05-22
OPTIREG™ Linear 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)
Potential applications
Automotive applications especially with tight space constraints.
Product validation
Qualified for Automotive Applications. Product Validation according to AEC-Q100/101.
Description
The OPTIREG™ Linear 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-circuit-proof and includes temperature protection which turns off the device at
overtemperature.
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 2 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Typical Performance Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table of Contents
Data Sheet 3 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Block Diagram
1 Block Diagram
Figure 1 Block Diagram
Ι1
AEB02044
GND
3
Q
6
Bandgap
Reference
Control
Amplifier
Sensor
Temperature
Buffer
Saturation
Control and
Protection
Circuit
VA
4
INH
2
*)
**)
For fixed Voltage Regulator only
For adjustable Voltage Regulator only
**)
*)
Data Sheet 4 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Pin Configuration
2 Pin Configuration
2.1 Pin Assignments
Figure 2 Pin Configuration (top view)
Table 1 Pin Definitions and Functions
Pin No. Symbol Function
1I Input; block to ground directly at the IC with a ceramic capacitor.
2INHInhibit; low-active input.
3GNDGround
4N.C.
VA
Not connected for V50
Voltage Adjust Input; only for adjustable version. Connect an external voltage
divider to determine the output voltage.
5Q Output; block to GND with a ≥ 22 µF capacitor, ESR ≤ 3 Ω at 10 kHz
Heatsink Connect to GND.
GND
Ι
INH (VA)
AEP02042
N.C.
Q
15
AEP02560
15
INH
ΙN.C.Q
(VA)
GND
15
GND
INH
Ι
AEP02043
N.C.
(VA)
Q
PG-TO220-5-12 PG-TO263-5-1 PG-TO252-5-11
Data Sheet 5 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Functional Description
3 Functional Description
Functional Description
The OPTIREG™ Linear 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-circuit-proof 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 6 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Functional Description
Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible
damage to the integrated circuit.
Table 2 Absolute Maximum Ratings
Parameter Symbol Limit Values Unit Test Condition
Min. Max.
Input I
Voltage VI-42 45 V –
Current II– – – Internally limited
Inhibit INH
Voltage VINH -42 45 V –
Voltage Adjust Input VA
Voltage VVA -0.3 10 V –
Output Q
Voltage VQ-1.0 40 V –
Current IQ– – – Internally limited
Ground GND
Current IGND – 100 mA –
Temperature
Junction temperature Tj-40 150 °C –
Storage temperature Tstg -50 150 °C –
Table 3 ESD Rating
Parameter Symbol Limit Values Unit Notes
Min. Max.
ESD Capability VESD,HBM 2000 – V Human Body Model
Data Sheet 7 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Functional Description
Table 4 Operating Range
Parameter Symbol Limit Values Unit Remarks
Min. Max.
Input voltage VIVQ + 0.5 40 V Fixed voltage devices V50
Input voltage VIVQ + 0.5 40 V Variable device V
Input voltage VI4.5 V 40 V Variable device V,
VQ < 4 V
Junction temperature Tj-40 150 °C–
Thermal Resistance
Junction ambient Rthj-a – 65 K/W TO220
Junction ambient Rthj-a – 80 K/W TO252, TO2631)
Junction case Rthj-c –4K/W–
1)Package mounted on PCB 80 × 80 × 1.5 mm ; 35µ Cu; 5µ Sn; Footprint only; zero airflow.
Data Sheet 8 Rev. 2.81
2019-05-22
OPTIREG™ Linear 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 Unit Measuring Condition Measuring
Circuit
Min. Typ. Max.
Output voltage VQ4.8 5.0 5.2 V V50-Version
5 mA < IQ < 400 mA
6 V < VI < 28 V
1
Output voltage VQ4.8 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)
IQ400 600 1100 mA – 1
Current
consumption;
Iq = II - IQ
Iq–– 10µAVINH = 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 10mAIQ = 250 mA 1
Current
consumption;
Iq = II - IQ
Iq–1525mAIQ = 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 35mVIQ = 5 mA to 400 mA 1
Line regulation ∆VQ,Li –1525mV∆Vl = 12 V to 32 V
IQ = 5 mA
1
Power supply ripple
rejection
PSRR –54– dBfr = 100 Hz;
Vr = 0.5 Vpp
1
Temperature output
voltage drift
∆VQ/dT–0.5– – – mV/K
Data Sheet 9 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Functional Description
Figure 3 Measuring Circuit
Figure 4 Application Circuit
Inhibit
Inhibit on voltage VINH –2 3.5V VQ ≥ 4.9 V 1
Inhibit off voltage VINH 0.5 1.7 – V VQ ≤ 0.1 V 1
Input current IINH 51020µAVINH = 5 V 1
1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V.
Table 5 Characteristics (cont’d)
VI = 13.5 V; -40 °C < Tj < 150 °C (unless otherwise specified)
Parameter Symbol Limit Values Unit Measuring Condition Measuring
Circuit
Min. Typ. Max.
AES02045
INH
V
I
GND
V
Q
100 nF100 µF
Q
22 µF
C
Q
R
1
INH
I
I
2
R
R
L
OutputInput
TLE 4276
Optional for adjustable Voltage Regulator
Voltage
Adjust
VA
I
I I
Q
)
*
)
*
)
*
)
*
1
234
5
V
INH
Data Sheet 10 Rev. 2.81
2019-05-22
OPTIREG™ Linear 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.
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
AEB02804
Current
and
Saturation
Control
Internal
Reference
2.5 V Typical
5
Vref
R2
R1
CQ
22 µF
Q
VA
4
Data Sheet 11 Rev. 2.81
2019-05-22
OPTIREG™ Linear 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)
Max. Output Current IQ versus
Input Voltage VI
Current Consumption Iq versus
Output Current IQ (low load)
AED03017
0
0
DR
V
200
400
600
mV
500
300
100
T
j
= 125 ˚C
Q
I
100 200 300 mA 400
= 25 ˚C
T
j
AED03020
0
0
V
Q
= 0 V
= 25 ˚C
T
j
I
V
Q
I
10 20 30 40 50V
200
400
600
mA
800
AED03021
0
0
Q
I
q
I
100 200 300 400 600mA
j
T
= 25 ˚C
= 13.5 V
VI
10
20
30
40
50
60
mA
AED03022
0
0
Q
I
q
I
10 20 30 40 60mA
j
T
= 25 ˚C
= 13.5 V
V
I
0.1
0.2
0.3
0.4
0.5
0.6
mA
Data Sheet 12 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Functional Description
Output Voltage VQ versus
Temperature TJ
Current Consumption Iq versus
Input Voltage VI
Low Voltage Behavior High Voltage Behavior
AED03081
-40 04080120 ˚C 160
4.8
j
T
Q
V
5.2
V
V
I
= 13.5 V
4.9
5.0
5.1
00
20
30
10
mA
50
AED01967
q
Ι
10 20 30 V
RL
=
20 Ω
V
Ι
Tj= 25 C
AED01968
02468V10
0
Q
V
2
4
6
V
VI
=
5
3
1
Q
V
T
j
= 25 ˚C
L
R
= 20
Ω
I
V
V
Q
AED03082_4276
-50
-2
I
V
I
I
T
= 25 ˚C
L
R
= 6.8 k
-25 0 25 50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
mA
V
Ω
j
Data Sheet 13 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Package information
4 Package information
Figure 6 PG-TO220-5
1)
Figure 7 PG-TO263-5
1)
1) Dimensions in mm
A
BA0.25
M
9.9
±0.2
2.8
1)
15.65
±0.3
12.95
0...0.15
±0.1
1.27
4.4
B
9.25
±0.2
0.05
C
±0.2
17
±0.3
8.5
1)
10
±0.2
3.7
-0.15
C
2.4
0.5
±0.1
13
±0.5
±0.5
11
0...0.3
1.74 x
5 x
±0.1
0.8
2.4
All metal surfaces tin plated, except area of cut.
Metal surface min. X = 7.25, Y = 12.3
Typical
1)
BA0.25
M
±0.2
10
8.5
1)
(15)
±0.2
9.25
±0.3
1
0...0.15
5 x 0.8
±0.1
±0.1
1.27
4.4
B
0.5
±0.1
±0.3
2.7
4.7
±0.5
2.4
1.7
0...0.3 A
1)
7.55
4 x
All metal surfaces tin plated, except area of cut.
Metal surface min. X = 7.25, Y = 6.9
Typical
1)
0.1 B
0.1
0.05
8° MAX.
PG-TO263-5-1-PO V01
Data Sheet 14 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Package information
Figure 8 PG-TO252-5
1)
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).
Further information on packages
https://www.infineon.com/packages
1) Dimensions in mm
1) Includes mold flashes on each side.
4.56 0.25 MA
6.5
5.7 MAX.
±0.1
per side
0.15 MAX.
-0.2
6.22
±0.5
9.98
(4.24) 1
A
1.14
5 x 0.6
±0.15
0.8
±0.1
+0.15
-0.05
0.1
B
-0.04
+0.08
0...0.15
0.51 MIN.
0.5
B
2.3
-0.10
0.5
+0.05
-0.04
+0.08
(5)
-0.01
0.9
+0.20
B
1)
All metal surfaces tin plated, except area of cut.
Data Sheet 15 Rev. 2.81
2019-05-22
OPTIREG™ Linear TLE4276
Low Drop Voltage Regulator
Revision History
5 Revision History
Revision Date Changes
2.81 2019-05-22 Updated layout (OPTIREG)
2.80 2018-01-10 Deleted obsolete products: TLE4276V50, TLE4276V85, TLE4276V10,
TLE4276SV50,TLE4276SV85, TLE4276GV85 and TLE4276GV10
Updated Template
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2019-05-22
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2019 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
Document reference
Z8F55294382
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