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| 5-V Low Drop Fixed Voltage Regulator TLE 4264 Features * * * * * * * * * Output voltage tolerance 2% Low-drop voltage Very low current consumption Overtemperature protection Short-circuit proof Suitable for use in automotive electronics Reverse polarity Green Product (RoHS compliant) AEC Qualified SOT223 Functional Description TLE 4264 is a 5-V low-drop fixed-voltage regulator in an PG-SOT223-4 package. The IC regulates an input voltage VI in the range 5.5 V < VI < 45 V to VQrated = 5.0 V. The maximum output current is more than 120 mA. This IC is shortcircuit-proof and features temperature protection that disables the circuit at overtemperature. Dimensioning Information on External Components The input capacitor Ci is necessary for compensating 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 regulating circuit. Stability is guaranteed at values CQ 10 F and an ESR 10 within the operating temperature range. Type TLE 4264 G Data Sheet 1 Package PG-SOT223-4 Rev. 2.3, 2008-03-07 TLE 4264 4 1 2 3 V GND VQ AEP01526 Figure 1 Table 1 Pin 1 2, 4 3 Pin Configuration (top view) Pin Definitions and Functions Symbol Function Input voltage; block to ground directly on IC with ceramic capacitor Ground 5-V output voltage; block to ground with 10 F capacitor, ESR 10 VI GND VQ 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 protected against overload, overtemperature and reverse polarity. Data Sheet 2 Rev. 2.3, 2008-03-07 TLE 4264 Temperature Sensor Saturation Control and Protection Circuit 3 Control Amplifier Input 1 Output Buffer Adjustment Bandgap Reference 2,4 GND AEB01527 Figure 2 Block Diagram Data Sheet 3 Rev. 2.3, 2008-03-07 TLE 4264 Table 2 Absolute Maximum Ratings Tj = -40 to 150 C Parameter Input Input voltage Input current Output Output voltage Output current Ground Current Temperatures Junction temperature Storage temperature Operating Range Input voltage Junction temperature Thermal Resistances Junction-ambient Junction-pin4 Symbol Limit Values Min. Max. 45 - 32 - - 150 150 45 150 85 20 V - V - mA C C V C K/W K/W - limited internally - limited internally - - - - - 1) Unit Notes VI II VQ IQ IGND Tj Tstg VI Tj Rthj-a Rthj-pin4 -42 - -1 - 50 - -50 5.5 -40 - - - 1) Worst case, regarding peak temperature; zero airflow; mounted an a PCB 80 x 80 x 1.5 mm3, heat sink area 300 mm2. Data Sheet 4 Rev. 2.3, 2008-03-07 TLE 4264 Table 3 Characteristics VI = 13.5 V; -40 C Tj 125 C, unless specified otherwise Parameter Output voltage Output-current limiting Symbol Limit Values Min. Typ. 5.0 160 - 9 0.25 - 15 54 Max. 5.1 - 400 15 0.5 40 30 - V mA A mA V mV mV dB 5 mA IQ 100 mA 6 V VI 28 V - 4.9 120 - - - - - - Unit Test Conditions VQ IQ Current consumption Iq Iq = II - IQ Current consumption Iq Iq = II - IQ Drop voltage Load regulation Supply-voltage regulation Power Supply ripple rejection IQ = 1 mA IQ = 100 mA IQ = 100 mA1) IQ = 5 to 100 mA VI = 6 V VI = 6 to 28 V IQ = 5 mA fr = 100 Hz Vr = 0.5 Vpp Vdr VQ VQ PSRR 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. 2.3, 2008-03-07 TLE 4264 Input 5.5 to 45 V Ci 1 3 Output TLE 4264G 2,4 10 F AES01528 Figure 3 Application Circuit Data Sheet 6 Rev. 2.3, 2008-03-07 TLE 4264 Drop Voltage VDR versus Output Current IQ 800 V DR mV 700 600 AED01978 Current Consumption Iq versus Input Voltage Vi 15 AED01979 q mA 10 500 Tj = 125 C R L = 50 400 300 5 200 Tj = 25 C R L = 100 100 0 25 0 50 75 100 125 mA 175 0 10 20 30 40 V 50 V Q Current Consumption Iq versus Output Current IQ 12 AED01980 Current Consumption Iq versus Output Current IQ 3.0 AED01981 q mA 10 q mA 2.5 8 Vi = 13.5 V 6 2.0 1.5 4 1.0 Vi = 13.5 V 2 0.5 0 0 50 100 mA 150 0 0 5 10 15 20 Q 30 mA Q Data Sheet 7 Rev. 2.3, 2008-03-07 TLE 4264 Output Voltage VQ versus Temperature Tj 5.20 VQ V 5.10 Vi = 13.5 V 5.00 AED01982 Output Current IQ versus Input Voltage Vi 200 AED01983 Q mA 150 Tj = 25 C 4.90 100 Tj = 125 C 4.80 50 4.70 4.60 -40 0 40 80 120 C 160 Tj 0 0 10 20 30 40 V 50 V Output Voltage VQ versus Input Voltage Vi 6 VQ V 5 AED01984 R L = 50 4 3 2 1 0 0 2 4 6 8 V 10 V Data Sheet 8 Rev. 2.3, 2008-03-07 TLE 4264 Package Outlines A 6.5 0.2 3 0.1 0.1 max 1.6 0.1 B 7 0.3 15max 4 1 0.7 0.1 2 3 2.3 4.6 0.5 min 0.28 0.04 0.25 M A 0.25 M B 3.5 0.2 +0.2 acc. to DIN 6784 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. 2.3, 2008-03-07 TLE 4264 Revision History Version Rev. 2.3 Rev. 2.2 Date Changes 2008-03-07 Simplified package name to PG-SOT223-4. No modification of released product. 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4264 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. 2.3, 2008-03-07 Edition 2008-03-07 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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