TLE4307D V33

Overview

The TLE4307D V33 is a monolithic integrated circuit combining a power charge pump with a low-dropout linear regulator. It delivers a fixed 3.3 V output at up to 800 mA. The device operates with an input voltage range of 4.5 V to 40 V. It features short-circuit protection and overtemperature shutdown. The component is housed in a PG-TO252-5-1 package.

Feature Summary

• Integrates a power charge pump and a low-dropout linear regulator in a single monolithic IC
• Provides high current capability with active Zener circuit for stable operation
• Includes built-in short-circuit protection and overtemperature protection mechanisms

Applications

• Automotive electronics requiring dual voltage rails from a single source
• Systems needing negative voltage generation alongside positive regulation
• Power management for microcontrollers and sensors in automotive environments

Procurement Notes

Verify the specific suffix and package variant when ordering, as Infineon uses detailed ordering codes. Confirm availability status, as this model may be obsolete or superseded by newer revisions. Request official datasheets to ensure compatibility with your design requirements before finalizing procurement decisions.

Selection Notes

Select this component when a combined charge pump and LDO solution is required to save board space. Ensure the input voltage exceeds the minimum threshold for the charge pump stage. Verify that the thermal performance of the PG-TO252-5-1 package suits the expected power dissipation in the target application environment.

Part Context

This part belongs to Infineon's TLE series of automotive-grade power regulators. It is designed for robust performance in harsh electrical environments typical of vehicle applications. The integration of charge pump and linear regulation simplifies power architecture for systems requiring both positive and negative supply rails.

Replacement Considerations

Check for direct pin-compatible substitutes within the TLE4307 family. Review updated Infineon documentation for any functional improvements or package changes in successor components.