TLE 4264 5-V Low-Drop Fixed-Voltage Regulator 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 SOT-223 Type Ordering Code Package TLE 4264 G Q67006-A9139 P-SOT223-4-4 (SMD) Functional Description TLE 4264 is a 5-V low-drop fixed-voltage regulator in an SOT-223 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 Ω 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 µF and an ESR ≤ 10 Ω within the operating temperature range. Data Sheet Rev. 2.1 1 2000-10-10 TLE 4264 4 1 2 3 VΙ GND VQ AEP01526 Figure 1 Pin Configuration (top view) Pin Definitions and Functions Pin Symbol Function 1 VI Input voltage; block to ground directly on IC with ceramic capacitor 2, 4 GND Ground 3 VQ 5-V output voltage; block to ground with ≥ 10-µF capacitor, ESR ≤ 10 Ω 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 Rev. 2.1 2 2000-10-10 TLE 4264 Saturation Control and Protection Circuit Temperature Sensor Input 1 3 Control Amplifier Adjustment Output Buffer Bandgap Reference 2,4 GND AEB01527 Figure 2 Block Diagram Data Sheet Rev. 2.1 3 2000-10-10 TLE 4264 Absolute Maximum Ratings Tj = – 40 to 150 °C Parameter Symbol Limit Values min. max. Unit Notes Input Input voltage VI – 42 45 V – Input current II – – – limited internally Output voltage VQ –1 32 V – Output current IQ – – – limited internally IGND 50 – mA – Junction temperature Tj – 150 °C – Storage temperature Tstg – 50 150 °C – Input voltage VI 5.5 45 V – Junction temperature Tj – 40 150 °C – Junction-ambient Rthj-a – 85 K/W 1) Junction-pin4 Rthj-pin4 – 20 K/W – Output Ground Current Temperatures Operating Range Thermal Resistances 1) Worst case, regarding peak temperature; zero airflow; mounted an a PCB 80 300 mm2. Data Sheet Rev. 2.1 4 × 80 × 1.5 mm3, heat sink area 2000-10-10 TLE 4264 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 4.9 5.0 5.1 V 5 mA ≤ IQ ≤ 100 mA 6 V ≤ VI ≤ 28 V Output-current limiting IQ 120 160 – mA – Current consumption Iq = II – IQ Iq – – 400 µA IQ = 1 mA Current consumption Iq = II – IQ Iq – 9 15 mA IQ = 100 mA Drop voltage Vdr – 0.25 0.5 V IQ = 100 mA1) Load regulation ∆VQ – – 40 mV IQ = 5 to 100 mA VI = 6 V Supply-voltage regulation ∆VQ – 15 30 mV VI = 6 to 28 V IQ = 5 mA Power Supply ripple rejection PSRR – 54 – dB fr = 100 Hz Vr = 0.5 Vpp 1) Drop voltage = 13.5 V). VI – VQ (measured where VQ has dropped 100 mV from the nominal value obtained at VI = Data Sheet Rev. 2.1 5 2000-10-10 TLE 4264 1 Input 5.5 to 45 V C 3 TLE 4264G i Output 10 µF 2,4 AES01528 Figure 3 Application Circuit Data Sheet Rev. 2.1 6 2000-10-10 TLE 4264 Drop Voltage VDR versus Output Current IQ VDR Current Consumption Iq versus Input Voltage Vi AED01978 800 mV 700 AED01979 15 Ι q mA 600 10 500 R L = 50 Ω Tj = 125 C 400 300 5 200 R L = 100 Ω Tj = 25 C 100 0 25 0 50 75 100 125 mA 175 10 0 20 30 40 V 50 ΙQ VΙ Current Consumption Iq versus Output Current IQ Current Consumption Iq versus Output Current IQ AED01980 12 AED01981 3.0 Ιq mA Ιq mA 10 2.5 8 2.0 Vi = 13.5 V 6 1.5 4 1.0 Vi = 13.5 V 2 0 0.5 0 50 100 mA 0 150 5 10 15 20 30 mA ΙQ ΙQ Data Sheet Rev. 2.1 0 7 2000-10-10 TLE 4264 Output Voltage VQ versus Temperature Tj Output Current IQ versus Input Voltage Vi AED01982 5.20 VQ AED01983 200 Ι Q mA V 5.10 Vi = 13.5 V 150 5.00 Tj = 25 C 100 4.90 Tj = 125 C 4.80 50 4.70 4.60 -40 0 40 80 0 120 C 160 Tj 0 10 20 30 40 V 50 VΙ Output Voltage VQ versus Input Voltage Vi AED01984 6 VQ R L = 50 Ω V 5 4 3 2 1 0 0 2 4 6 8 V 10 VΙ Data Sheet Rev. 2.1 8 2000-10-10 TLE 4264 Package Outlines P-SOT223-4-4 (Plastic Small Outline Transistor) 1.6 ±0.1 6.5±0.2 0.1 max 1 +0.2 acc. to DIN 6784 2 3 0.28 2.3 0.7 ±0.1 3.5 ±0.2 4 0.5 min B 7 ±0.3 3 ±0.1 15˚max A ±0.04 0.25 M A 0.25 M B Weight approx. 0.15 g Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package Information” SMD = Surface Mounted Device Data Sheet Rev. 2.1 9 GPS05560 4.6 Dimensions in mm 2000-10-10 TLE 4264 Edition 2000-10-10 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 München, Germany © Infineon Technologies AG 2000. 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 noninfringement, 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. 2.1 10 2000-10-10