TLE4251G The TLE4251G is a monolithic integrated low-drop voltage tracker in the very small SMD package PG-TO252-5-1.

Overview

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 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%. The TLE 4251 can 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.

Summary of 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 ≤ T j ≤ 150 °C
  • Output Protected against Short Circuit
  • Overtemperature Protection
  • Reverse Polarity Proof
  • Green Product (RoHS compliant)
  • AEC Qualified

Benefits

  • Efficient and Accurate Voltage Replication
  • Heat Distribution in the System
  • Robust Tracking Supply

Potential Applications

  • Sensor Supply
  • Heat Distribution
  • Secondary µcontroller Supply

Family Table

For an overview of other available options in this family please click here. 

Training

OPTIREG™ Linear Tracker: Infineon’s family of automotive voltage trackers

  • Be familiar with the overall OPTIREG™ product categories and OPTIREG™ Linear product groups
  • Get to know the OPTIREG™ Linear Tracker portfolio and its benefits and understand the naming convention applied to these products
Support