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 µA 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 µA. 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 Package TLE 4264-2 G PG-SOT223-4 Data Sheet 1 Rev. 2.6, 2008-03-10 TLE 4264-2 GND 4 1 2 3 Ι GND Q AEP02868 Figure 1 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin Symbol Function 1 I Input voltage; block to ground directly with a ceramic capacitor 2, 4 GND Ground 3 Q 5-V output voltage; block to ground with a capacitor CQ ≥ 10 µF, ESR ≤ 4 Ω 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. Saturation Control and Protection Circuit Temperature Sensor Input Ι Q Control Amplifier Adjustment Output Buffer Bandgap Reference GND GND AEB02870 Figure 2 Data Sheet Block Diagram 3 Rev. 2.6, 2008-03-10 TLE 4264-2 Table 2 Absolute Maximum Ratings Parameter Symbol Limit Values Unit Notes Min. Max. VI II -42 45 V – – – – limited internally VQ IQ -0.3 32 V – – – – limited internally IGND 50 – mA – Tj Tstg – 150 °C – -50 150 °C – Rthj-a Rthj-a – 164 K/W PG-SOT223-41) – 81 K/W PG-SOT223-4, 300 mm2 heat sink area Rthj-p – 17 K/W PG-SOT223-42) VI Tj 5.5 45 V – -40 150 °C – Input I Input voltage Input current Output Q Output voltage Output current Ground GND Current Temperatures Junction temperature Storage temperature Thermal Resistances Junction-ambient Junction-pin Operating Range Input voltage Junction temperature 1) Package mounted on PCB 80 × 80 × 1.5mm ; 35µ Cu; 5µ Sn; Footprint only; zero airflow. 3 2) Measured to pin 4. 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 Symbol Limit Values Min. Typ. Max. Unit Test Conditions Output voltage VQ 4.85 5.0 5.15 V 5 mA ≤ IQ ≤ 100 mA 6 V ≤ VI ≤ 21 V Output voltage VQ 4.9 5.0 5.1 V 5 mA ≤ IQ ≤ 50 mA 9 V ≤ VI ≤ 16 V Output-current limiting IQ 150 200 500 mA – – 40 60 µA – 40 70 µA – 1.7 4 mA IQ = 100 µA, Tj ≤ 85 °C IQ = 100 µA, IQ = 50 mA – 0.22 0.5 V Load regulation Vdr ∆VQ, lo – 50 90 mV Line regulation ∆VQ, li – 5 30 mV Power Supply Ripple PSRR Rejection – 68 – dB 10 – – µF Current consumption Iq Iq = II - IQ Current consumption Iq Iq = II - IQ Drop voltage Output Capacitor CQ 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 Ω at 10 kHz 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 Ι Input 5.5 to 45 V 470 µF Q TLE 4264-2 100 nF Output 10 µF GND 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 µF with a maximum permissible ESR of 4 Ω. 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 Ω 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 µF 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 Drop Voltage Vdr versus Output Current IQ AED03344.VSD 5.15 V Vdr IQ = 5 mA AED03343.VSD 400 mV Tj = 125°C 350 5.10 300 Tj = 25°C 250 5.05 200 5.00 Tj = -40°C 150 100 4.95 50 4.90 -40 0 40 80 °C 0 160 Tj 0 20 40 60 80 100 120 mA 160 IQ Output Voltage VQ versus Input Voltage VI AED03345.VSD 10 VQ V RL = 50 Ω 8 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 Current Consumption Iq versus Output Current IQ AED03341.VSD 400 µA Iq 350 7 300 6 250 5 200 4 150 3 100 2 50 1 0 0 2 4 6 8 0 10 12 mA 16 IQ Data Sheet AED03342.VSD 8 µA 0 20 40 60 80 100 120 mA 160 IQ 8 Rev. 2.6, 2008-03-10 TLE 4264-2 Package Outlines 1.6 ±0.1 6.5 ±0.2 0.1 MAX. 2 B 0.5 MIN. 1 +0.2 acc. to DIN 6784 3.5 ±0.2 4 7 ±0.3 3 ±0.1 15˚ MAX. A 3 0.28 ±0.04 2.3 0.7 ±0.1 4.6 0.25 M A 0.25 M 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. Dimensions in mm SMD = Surface Mounted Device Data Sheet 9 Rev. 2.6, 2008-03-10 TLE 4264-2 Revision History Version Date Rev. 2.6 2008-03-10 Simplified package name to PG-SOT223-4. No modification of released product. Rev. 2.5 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 Changes 10 Rev. 2.6, 2008-03-10 Edition 2008-03-10 Published by Infineon Technologies AG 81726 Munich, Germany © 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. 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