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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 Ordering Code Package Q67006-A9483 P-SOT223-4-6 P-SOT223-4-4 SOT-223 Type TLE 4264-2 G 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 P-SOT223-4-1 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. Data Sheet Rev. 2.3 1 2002-12-21 TLE 4264-2 P-SOT223-4 GND 4 1 2 3 GND Q AEP02868 Figure 1 Pin Configuration (top view) Pin Definitions and Functions Pin 1 2, 4 3 Symbol I GND Q 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 Figure 2 Pin Configuration (top view) (cont`d) Data Sheet Rev. 2.3 2 2002-12-21 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 Buffer Output Adjustment Bandgap Reference GND GND AEB02870 Figure 3 Block Diagram Data Sheet Rev. 2.3 3 2002-12-21 TLE 4264-2 Absolute Maximum Ratings Parameter Symbol Limit Values Unit Notes min. Input I Input voltage Input current max. VI II - 42 - 45 - V - - limited internally Output Q Output voltage Output current VQ IQ - 0.3 32 - - V - - limited internally Ground GND Current IGND 50 - mA - Data Sheet Rev. 2.3 4 2002-12-21 TLE 4264-2 Absolute Maximum Ratings Temperatures Junction temperature Tj Storage temperature - - 50 150 150 C C - - Tstg Thermal Resistances Junction-ambient Rthj-a Rthj-a - - - 164 81 17 K/W P-SOT223-4-61) K/W P-SOT223-4-6, 300 mm2 heat sink area K/W P-SOT223-4-62) Junction-pin Rthj-p Operating Range Input voltage VI 5.5 - 40 45 150 V - - Junction temperature Tj 1) 2) C Package mounted on PCB 80 x 80 x 1.5mm3; 35 Cu; 5 Sn; Footprint only; zero airflow. Measured to pin 4. Data Sheet Rev. 2.3 5 2002-12-21 TLE 4264-2 Characteristics VI = 13.5 V; - 40 C Tj 125 C, unless specified otherwise Parameter Symbol Limit Values min. Output voltage Output voltage Output-current limiting typ. 5.0 5.0 max. 5.15 5.1 V V 5 mA IQ 100 mA 6 V VI 21 V 5 mA IQ 50 mA 9 V VI 16 V - Unit Test Conditions VQ VQ 4.85 4.9 IQ 150 - - 200 40 40 1.7 0.22 50 5 68 - 500 60 70 4 0.5 90 30 - - mA Current consumption Iq = II - IQ Iq A A mA V mV mV dB F 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 10kHz Current consumption Iq = II - IQ Iq Drop voltage Load regulation Line regulation Power Supply Ripple Rejection Output Capacitor 1) - - - - - 10 Vdr VQ, lo VQ, li PSRR CQ Drop voltage = VI - VQ (measured where VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V) Data Sheet Rev. 2.3 6 2002-12-21 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 4 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. Fig. 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 occuring due the input inductivity and the input capacitor. In the application circuit shown in Fig. 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 Rev. 2.3 7 2002-12-21 TLE 4264-2 Typical Performance Characteristics Output Voltage VQ versus Temperature Tj TLE42642_VQ_vs_Tj Drop Voltage Vdr versus Output Current IQ 400 TLE4264-2_Vdr_vs_IQ VQ / V 5.10 IQ = 5 mA Vdr / mV 350 300 Tj=125C 5.05 250 Tj=25C 5.00 200 150 Tj=-40C 4.95 100 50 0 0 4.90 -40 0 40 80 120 160 T j / C 20 40 60 80 100 120 140 160 IQ / mA Output Voltage VQ versus Input Voltage VI 10 TLE4264-2_VQ_vs_VI VQ V 8 6 4 2 0 0 2 4 8 10 V VI Data Sheet Rev. 2.3 8 2002-12-21 RL= 50 TLE 4264-2 Current Consumption Iq versus Output Current IQ 400 TLE4264-2_Iq_vs_IQ1 Current Consumption Iq versus Output Current IQ 8 TLE4264-2_Iq_vs_IQ2 Iq / A 350 300 250 200 150 100 50 0 0 Iq / A 7 6 5 4 3 2 1 0 0 2 4 6 8 10 12 14 16 IQ / mA 20 40 60 80 100 120 140 160 IQ / mA Data Sheet Rev. 2.3 9 2002-12-21 TLE 4264-2 Package Outlines P-SOT223-4-6 (Plastic Small Outline Transistor) 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 3.5 0.2 +0.2 acc. to DIN 6784 0.25 Weight approx. 0.15 g M A 0.25 M B Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information" SMD = Surface Mounted Device Data Sheet Rev. 2.3 10 Dimensions in mm 2002-12-21 GPS05560 TLE 4264-2 Package Outlines P-SOT223-4-4 (Plastic Small Outline Transistor) 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 3.5 0.2 +0.2 acc. to DIN 6784 0.25 Weight approx. 0.15 g M A 0.25 M B Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information" SMD = Surface Mounted Device Data Sheet Rev. 2.3 11 Dimensions in mm 2002-12-21 GPS05560 TLE 4264-2 Edition 2002-12-21 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 Munchen, Germany (c) Infineon Technologies AG 2002. All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Infineon Technologies is an approved CECC manufacturer. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide (see address list). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems 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. Data Sheet Rev. 2.3 12 2002-12-21 |
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