TLE4251D Datasheet PDF - Infineon

●Low Drop Voltage Tracker

●Functional Description

●TheTLE 4251is a monolithic integrated low-drop voltage tracker in the very small SMD

●package P-TO252-5-1. 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 over load, short circuit and reverse polarity.

●Supply voltages up to 40 V are tracked to a reference voltage given to the adjust input

●via an external resistor. The output is able to drive loads up to 400 mA while it follows e.g. the 5 V output of a main voltage regulator within an accuracy of 0.5%. For loads up to 300 mA the tracking accuracy is 0.2%.

●TheTLE 4251can be switched in stand-by mode via the enable EN input which causes the current consumption to drop to very low values. This feature makes the IC suitable for low power battery applications.

●Features

●• Output tracking tolerance≤ ±0.2%

●• 400 mA output current capability

●• Enable Function

●• Very low current consumption in OFF mode

●• Wide operation range: up to 40 V

●• Wide temperature range: – 40°C≤Tj ≤ 150°C

●• Output protected against short circuit

●• Overtemperature protection

●• Reverse polarity proof