TLE4250G Infineon

Low Drop Voltage Tracker TLE 4250 G Features Output tracking tolerance 0.5% 50 mA output current Combined Tracking/Enable input Very low current consumption in off mode Low drop voltage Suitable for use in automotive electronics P-SCT595-5 Wide operation range: up to 40 V Wide temperature range: -40 C T 150 C j Output protected against short circuit Overtemperature protection Reverse polarity proof Very small SMD-Package P-SCT595-5 Functional Description The TLE 4250 G is a monolithic integrated low drop voltage tracker in the very small SMD package P-SCT595-5. It is designed to supply e.g. sensors under the severe conditions of automotive applications. Therefore the device is equipped with additional protection functions against overload, short circuit and reverse polarity. Supply voltages up to 40 V are tracked to a reference voltage at the adjust input. Therefore the Adjust pin has to be connected to a reference voltage, e.g. to a 5 V supply on a microcontroller port. The output is able to drive a load up to 50 mA while it follows the output of a main voltage regulator within an accuracy of 0.5%. The TLE 4250 G can be switched in stand-by mode via the adjust input which causes the current consumption to drop to very low values. This feature makes the IC suitable for low power battery applications. Type Ordering Code Package TLE 4250 G Q67006-A9351 P-SCT595-5 Data Sheet 1 Rev. 2.3, 2004-01-01 TLE 4250 G ADJ 1 5 GND GND 2 3 4 Q AEP02581 Figure 1 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin No. Symbol Function 1ADJ Adjust/Enable input connect to the reference voltage via ext. resistor or microcontroller port high active input 2GND Ground internally connected to pin 5 3I Input voltage 4Q Output voltage must be blocked by a capacitor C 1 F, Q 2 ESR 7 5GND Ground Data Sheet 2 Rev. 2.3, 2004-01-01