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Low Drop Voltage Regulator
TLE 4276-2
Features * * * * * * * * * * * 5 V or variable output voltage Output voltage tolerance 2% 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
P-TO220-5-122
P-TO252-5-11
Type TLE 4276-2 GV50 TLE 4276-2 GV TLE 4276-2 DV50 TLE 4276-2 DV
Package PG-TO263-5 PG-TO263-5 PG-TO252-5 PG-TO252-5
Marking 4276-2V5 4276-2V 4276-2V5 4276-2V
Data Sheet
1
Rev. 1.1, 2007-09-21
TLE 4276-2
Functional Description The TLE 4276-2 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) or 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 A. 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 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 F and an ESR of 3 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
2
Rev. 1.1, 2007-09-21
TLE 4276-2
PG-TO263-5
PG-TO252-5
GND
1
5
1 Q INH N.C. (VA)
5
GND INH N.C. (VA)
Q
AEP02560
AEP02043
Figure 1 Table 1 1 2 3 4 I INH
Pin Configuration (top view) Pin Definitions and Functions Input; block to ground directly at the IC with a ceramic capacitor. Inhibit; low-active input. Ground Not connected for V50 Voltage Adjust Input; only for adjustable version. Connect an external voltage divider to determine the output voltage. Output; block to GND with a 22 F capacitor, ESR 3 at 10 kHz Connect to GND.
Pin No. Symbol Function
GND N.C. VA Q
5 Heat Tab
Data Sheet
3
Rev. 1.1, 2007-09-21
TLE 4276-2
Temperature Sensor
Saturation Control and Protection Circuit 6 Control Amplifier Q
1
Buffer
Bandgap Reference *) **) 2 INH *) For fixed Voltage Regulator only **) For adjustable Voltage Regulator only 4 VA 3 GND
AEB02044
Figure 2
Block Diagram
Data Sheet
4
Rev. 1.1, 2007-09-21
TLE 4276-2
Table 2 Parameter Input I Voltage Current Inhibit INH Voltage
Absolute Maximum Ratings Symbol Limit Values Min. Max. 45 - 45 10 40 - 100 V - V V V - mA - Internally limited - - - Internally limited - Unit Test Condition
VI II VINH VVA VQ IQ IGND
-42 - -42 -0.3 -1.0 - -
Voltage Adjust Input VA Voltage Output Q Voltage Current Ground GND Current Temperature Junction temperature Storage temperature
Tj Tstg
-40 -50
150 150
C C
- -
Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit.
Table 3 Parameter
ESD Rating Symbol Limit Values Min. Max. 2 kV Human Body Model Unit Notes
ESD Capability
VESD,HBM -2
Data Sheet
5
Rev. 1.1, 2007-09-21
TLE 4276-2
Table 4 Parameter Input voltage Input voltage Input voltage
Operating Range Symbol Limit Values Min. Max. 40 40 40 150 V V V C Fixed voltage device V50 Variable device V Variable device V, VQ < 4 V - Unit Remarks
VI VI VI Tj
VQ + 0.5 VQ + 0.5
4.5 V -40
Junction temperature Table 5 Parameter Junction to Case1) Junction to Ambient1)
Thermal Resistance Symbol Limit Value Min. Typ. 3.0 78 Max. - - K/W K/W - PG-TO252-5 300mm2 heatsink area on PCB2) PG-TO263-5 300mm2 heatsink area on PCB2) - - Unit Conditions
RthJC RthJA RthJA
Junction to Ambient1)
-
53
-
K/W
1) not subject to production test, specified by design 2) EIA/JESD 52_2, FR4, 80 x 80 x 1.5 mm; 35 Cu, 5 Sn
Data Sheet
6
Rev. 1.1, 2007-09-21
TLE 4276-2
Table 6
Characteristics
VI = 13.5 V; -40 C < Tj < 150 C (unless otherwise specified)
Parameter Output voltage Symbol Limit Values Min. Typ. Max. 4.9 5.0 5.1 V Unit Measuring Condition Measuring Circuit
VQ
1 V50-Version 5 mA < IQ < 300 mA 6 V < VI < 28 V V50-Version 1 5 mA < IQ < 400 mA 6 V < VI < 28 V 1 V50-Version 5 mA < IQ < 200 mA 6 V < VI < 40 V V-Version 1 R2 < 50 k VQ + 1 V VI 28 V VI > 4.5 V 5 mA IQ 300 mA V-Version 1 R2 < 50 k VQ + 1 V VI 40V VI > 4.5 V 5 mA IQ 400 mA - 1 1
Output voltage
VQ
4.8
5.0
5.2
V
Output voltage
VQ
VQ
4.8
5.0
5.2
V
Output voltage tolerance
-2
-
2
%
Output voltage tolerance
VQ
-4
-
4
%
Output current limitation1) Current consumption; Iq = II - IQ Current consumption; Iq = II - IQ Current consumption; Iq = II - IQ Current consumption; Iq = II - IQ
IQ Iq
400 -
600 -
1100 mA 10 A
VINH = 0 V; Tj 100 C IQ = 1 mA
Iq
-
100
220
A
1
Iq
-
5
10
mA
IQ = 250 mA
1
Iq
-
15
25
mA
IQ = 400 mA
1
Data Sheet
7
Rev. 1.1, 2007-09-21
TLE 4276-2
Table 6
Characteristics (cont'd)
VI = 13.5 V; -40 C < Tj < 150 C (unless otherwise specified)
Parameter Drop voltage1) Symbol Limit Values Min. Typ. Max. - 250 500 mV Unit Measuring Condition V50 Measuring Circuit 1
VDR
IQ = 250 mA VDR = VI - VQ
Drop voltage1)
VDR
-
250
500
mV
variable devices
1
Load regulation VQ,Lo Line regulation Power supply ripple rejection Temperature output voltage drift Inhibit Inhibit on voltage Inhibit off voltage Input current VQ,Li
- - -
5 15 54 0.5
35 25 - -
mV mV dB -
IQ = 250 mA VI > 4.5 V VDR = VI - VQ IQ = 5 mA to 400 mA 1
Vl = 12 V to 32 V 1 1 mV/K
PSRR
IQ = 5 mA fr = 100 Hz; Vr = 0.5 Vpp
-
dVQ/dT -
VINH VINH IINH
- 0.5 5
2 1.7 10
3.5 - 20
V V A
VQ 4.9 V VQ 0.1 V VINH = 5 V
1 1 1
1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V.
Data Sheet
8
Rev. 1.1, 2007-09-21
TLE 4276-2
Input
II
100 F 100 nF
I1
5Q
IQ CQ
22 F
Output
TLE 4276-2
R 1*) VQ R 2*) RL
IINH VI VINH
INH
2
3 GND
4
*)
VA Voltage Adjust
*) Optional
for adjustable Voltage Regulator
AES02045
Figure 3
Measuring Circuit
Input
I1
5Q
Output
CI
e.g. KL 15 INH 2
TLE 4276-2 4 GND
*)
CQ
R 1*)
3
VA
Voltage Adjust
R 2*)
*) Optional
for adjustable Voltage Regulator
AES02046
Figure 4
Application Circuit
Data Sheet
9
Rev. 1.1, 2007-09-21
TLE 4276-2
Application Information for Variable Output Regulator TLE 4276-2 DV, GV The output voltage of the TLE 4276-2 DV, GV 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.
5Q
Internal Reference 2.5 V Typical
Vref
Current and Saturation Control 4 VA
R1
CQ
22 F
R2
AEB02804
Figure 5
Application Detail External Components at Output for Variable Voltage Regulator
The output voltage is calculated according to Equation (1):
VQ = (R1 + R2)/R2 x Vref, neglecting IVA Vref is typically 2.5 V.
(1)
To avoid errors caused by leakage current IVA, we recommend to choose the resistor value R2 according to Equation (2):
R2 < 50 k
(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 4276-2 DV, GV 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. 1.1, 2007-09-21
TLE 4276-2
Typical Performance Characteristics V50: Voltage VDR versus Output Current IQ
VDR
600 mV
AED03017
Max. Output Current IQ versus Input Voltage VI
800 mA
AED03020
IQ
500
400
T j = 125 C
600
T j = 25 C VQ = 0 V
400
300
200
T j = 25 C
100
200
0
0
100
200
300 mA 400
0
0
10
20
30
40 V 50
IQ
VI
Current Consumption Iq versus Output Current IQ (high load)
60
AED03021
Current Consumption Iq versus Output Current IQ (low load)
0.6
AED03022
Iq mA
50
Iq mA
0.5
40
0.4
T j = 25 C VI = 13.5 V
30
0.3
T j = 25 C VI = 13.5 V
20
0.2
10
0.1
0
0
100
200 300 400
mA 600
0
0
10
20
30
40
mA
60
IQ
Data Sheet 11
IQ
Rev. 1.1, 2007-09-21
TLE 4276-2
Typical Performance Characteristics for V50: Output Voltage VQ versus Temperature Tj
5.2
AED03081
Current Consumption Iq versus Input Voltage VI
30 mA
AED01967
VQ
V
q
5.1
20
VI = 13.5 V
5.0
T j = 25 C R L = 20 10
4.9
4.8 -40
0
40
80
120 C 160
0
0
10
20
30
Tj
V V
50
Low Voltage Behavior
6
AED01968
High Voltage Behavior
3.5 mA II 3.0 2.5
AED03082_4276
VQ
V 5
VQ
4
2.0
VI = VQ
3
1.5
T j = 25 C R L = 20
2
T j = 25 C R L = 6.8 k
1.0 0.5
1
0 -2 -50
0
0
2
4
6
8 V 10
-25
0
25
V
50
VI
Data Sheet 12
VI
Rev. 1.1, 2007-09-21
TLE 4276-2
Package Outlines
Outlines_PG-TO263-5
Figure 6
PG-TO263-5 (Plastic Green Transistor Single Outline)
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).
You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 13 Dimensions in mm Rev. 1.1, 2007-09-21
TLE 4276-2
6.5 +0.15 -0.05 5.7 MAX.
(4.24) 1 0.1
1)
A B
0.8 0.15
2.3 +0.05 -0.10 0.5 +0.08 -0.04
(5)
9.98 0.5 6.22 -0.2
0.9 +0.20 -0.01 0...0.15
0.51 MIN.
0.15 MAX. per side
5 x 0.6 0.1 1.14
0.5 +0.08 -0.04 0.1 B
4.56
0.25 M A B
1) Includes mold flashes on each side. All metal surfaces tin plated, except area of cut.
Outlines_PG-TO252-5
Figure 7
PG-TO252-5 (Plastic Green Transistor Single Outline)
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).
You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 14 Dimensions in mm Rev. 1.1, 2007-09-21
TLE 4276-2
Revision History
Version Rev. 1.0 Rev. 1.1
Date
Changes
2007-08-07 First Version Data Sheet 2007-09-21 Second Version Data Sheet
Data Sheet
15
Rev. 1.1, 2007-09-21
Edition 2007-09-21 Published by Infineon Technologies AG 81726 Munich, Germany
(c) 2007 Infineon Technologies AG
All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, 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. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

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