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5-V Low Drop Fixed Voltage Regulator
TLE 4264-2
Features * * * * * * * * * * Output voltage tolerance 3% (2% up to 50 mA) 150 mA current capability Low-drop voltage Very low current consumption: 40 A Overtemperature protection Short-circuit proof Suitable for use in automotive electronics Reverse polarity proof Green Product (RoHS compliant) AEC Qualified
P-SOT223-4
Functional Description The TLE 4264-2 is a monolithic integrated low-drop fixed voltage regulator which can supply loads up to 150 mA. It is functional compatible to the TLE 4264, but has a reduced quiescent current of typ. 40 A. The TLE 4264-2 is especially designed for all applications which require very low quiescent currents. The device is available in the small surface mounted PG-SOT223-4 package. The device is pin compatible to the TLE 4264. The regulator is designed to supply microprocessor systems under the severe condition of automotive applications and is therefore equipped with additional protection against overload, short-circuit and overtemperature. Of course the TLE 4264-2 can be used in all other applications, wherever a stabilized voltage is required. An input voltage VI in the range of 5.5 V < VI < 45 V is regulated to VQ,nom = 5 V with an accuracy of 3%. An accuracy of 2% is kept for a load current range up to 50 mA. The device operates in the temperature range of Tj = -40 to 150 C.
Type TLE 4264-2 G
Data Sheet 1
Package PG-SOT223-4
Rev. 2.6, 2008-03-10
TLE 4264-2
GND
4
1
2
3
GND
Q
AEP02868
Figure 1 Table 1 Pin 1 2, 4 3 I
Pin Configuration (top view) Pin Definitions and Functions Symbol Function Input voltage; block to ground directly with a ceramic capacitor Ground 5-V output voltage; block to ground with a capacitor CQ 10 F, ESR 4
GND Q
Data Sheet
2
Rev. 2.6, 2008-03-10
TLE 4264-2
Circuit Description The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control, working as a function of load current, prevents any over-saturation of the power element. The IC is additionally protected against overload, overtemperature and reverse polarity.
Temperature Sensor
Saturation Control and Protection Circuit Q Control Amplifier
Input
Output
Buffer
Adjustment
Bandgap Reference
GND GND
AEB02870
Figure 2
Block Diagram
Data Sheet
3
Rev. 2.6, 2008-03-10
TLE 4264-2
Table 2 Parameter Input I Input voltage Input current Output Q
Absolute Maximum Ratings Symbol Limit Values Unit Min. Max. 45 - 32 - - 150 150 164 81 17 45 150 V - V - mA C C K/W K/W K/W V C - limited internally - limited internally - - - PG-SOT223-41) PG-SOT223-4, 300 mm2 heat sink area PG-SOT223-42) - - Notes
VI II VQ IQ IGND Tj Tstg Rthj-a Rthj-a Rthj-p VI Tj
3
-42 - -0.3 - 50 - -50 - - - 5.5 -40
Output voltage Output current Ground GND Current Temperatures Junction temperature Storage temperature Thermal Resistances Junction-ambient
Junction-pin Operating Range Input voltage Junction temperature
2) Measured to pin 4.
1) Package mounted on PCB 80 x 80 x 1.5mm ; 35 Cu; 5 Sn; Footprint only; zero airflow.
Data Sheet
4
Rev. 2.6, 2008-03-10
TLE 4264-2
Table 3
Characteristics
VI = 13.5 V; -40 C Tj 125 C, unless specified otherwise
Parameter Output voltage Output voltage Output-current limiting Symbol Limit Values Min. Typ. 5.0 5.0 200 40 40 1.7 0.22 50 5 68 - Max. 5.15 5.1 500 60 70 4 0.5 90 30 - - V V mA A A mA V mV mV dB F 5 mA IQ 100 mA 6 V VI 21 V 5 mA IQ 50 mA 9 V VI 16 V - 4.85 4.9 150 - - Current consumption Iq - - - - - 10 Unit Test Conditions
VQ VQ IQ
Current consumption Iq Iq = II - IQ
IQ = 100 A, Tj 85 C IQ = 100 A, IQ = 50 mA IQ = 100 mA1) IQ = 1 to 100 mA VI = 13.5 V VI = 6 to 28 V IQ = 1 mA fr = 100 Hz Vr = 0.5 Vpp
ESR 4 at 10 kHz
Iq = II - IQ
Drop voltage Load regulation Line regulation
Vdr
VQ, lo VQ, li
Power Supply Ripple PSRR Rejection Output Capacitor
CQ
1) Drop voltage = VI - VQ (measured where VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V)
Data Sheet
5
Rev. 2.6, 2008-03-10
TLE 4264-2
Application Information
Input 5.5 to 45 V 470 F 100 nF
Q
Output
TLE 4264-2
GND
10 F
AES02871
Figure 3
Application Circuit
In the TLE 4264-2 the output voltage is divided and compared to an internal reference of 2.5 V typical. The regulation loop controls the output to achieve an output voltage of 5 V with an accuracy of 3% at an input voltage range of 5.5 V < VI < 45 V. Figure 4 shows a typical application circuit. For stability of the control loop the TLE 4264-2 output requires an output capacitor CQ of at least 10 F with a maximum permissible ESR of 4 . Tantalum as well as multi layer ceramic capacitors are suitable. At the input of the regulator an input capacitor is necessary for compensating line influences (100 nF ceramic capacitor recommended). A resistor of approx. 1 in series with CI, can damp any oscillation occurring due the input inductivity and the input capacitor. In the application circuit shown in Figure 4 an additional electrolytic input capacitor of 470 F is added in order to buffer supply line influences. This capacitor is recommended, if the device is sourced via long supply lines of several meters. The TLE 4264-2 can supply up to 150 mA. However for protection for high input voltage above 25 V, the output current is reduced (SOA protection).
Data Sheet
6
Rev. 2.6, 2008-03-10
TLE 4264-2
Typical Performance Characteristics Output Voltage VQ versus Temperature Tj
VQ
5.15 V 5.10 300 5.05 250 200 5.00 150 100 4.95 50 4.90 -40 0
AED03344.VSD
Drop Voltage Vdr versus Output Current IQ
Vdr
400 mV 350
AED03343.VSD
IQ = 5 mA
Tj = 125C
Tj = 25C
Tj = -40C
0
40
80
C
160
0
20 40 60 80 100 120 mA 160
Tj
IQ
Output Voltage VQ versus Input Voltage VI
10
AED03345.VSD
VQ
V 8
RL = 50
6
4
2
0
0
2
4
6
8
V 10
VI
Data Sheet
7
Rev. 2.6, 2008-03-10
TLE 4264-2
Current Consumption Iq versus Output Current IQ
Iq
400 A 350 300 250 200 150 100 50 0
AED03341.VSD
Current Consumption Iq versus Output Current IQ
Iq
8 A 7 6 5 4 3 2 1 0
AED03342.VSD
0
2
4
6
8
10 12 mA 16
0
20 40 60 80 100 120 mA 160
IQ
IQ
Data Sheet
8
Rev. 2.6, 2008-03-10
TLE 4264-2
Package Outlines
A
6.5 0.2 3 0.1 4 0.1 MAX.
1.6 0.1
1 0.7 0.1 4.6 0.25
M
2 2.3
3
0.5 MIN.
0.28 0.04
A
0.25
M
B
3.5 0.2
7 0.3
+0.2 acc. to DIN 6784
15 MAX.
B
GPS05560
Figure 4
PG-SOT223-4 (Plastic Small Outline Transistor)
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 9 Dimensions in mm Rev. 2.6, 2008-03-10
TLE 4264-2
Revision History
Version Rev. 2.6 Rev. 2.5
Date
Changes
2008-03-10 Simplified package name to PG-SOT223-4. No modification of released product. 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4264-2 Page 1: AEC certified statement added Page 1 and Page 9: RoHS compliance statement and Green product feature added Page 1 and Page 9: Package changed to RoHS compliant version Legal Disclaimer updated
Data Sheet
10
Rev. 2.6, 2008-03-10
Edition 2008-03-10 Published by Infineon Technologies AG 81726 Munich, Germany
(c) 2008 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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