TL432QDBVTE4

Overview

The TL432QDBVTE4 is a three-terminal adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 36 V and features an initial accuracy of ±2.2%. The device supports a maximum cathode current of 100 mA and functions across a temperature range of -40°C to +125°C. Packaged in a SOT-23-5 (SC-74A) surface-mount case, it serves as a drop-in replacement for Zener diodes in various power management applications.

Feature Summary

• Provides adjustable reference voltage functionality using external resistors
• Offers low output impedance for stable regulation performance
• Designed with high thermal stability across extended industrial temperatures

Applications

• Board-on regulators
• Adjustable power supplies
• Switching power supply feedback loops

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and marking alignment with original specifications. Check for valid RoHS compliance documentation. Ensure storage conditions prevent moisture damage prior to reflow soldering processes.

Selection Notes

Select this component when a SOT-23-5 footprint is required instead of the standard SOT-23-3. Verify that the ±2.2% tolerance meets circuit requirements. Confirm compatibility with existing PCB layouts designed for the specific pinout arrangement of this package variant.

Part Context

This part belongs to the TL432 family, which shares electrical characteristics with the TL431 but utilizes different pin configurations for DBV, DBZ, and PK packages. The TL432 series is engineered to replace Zener diodes while offering superior precision and lower dynamic impedance in voltage reference applications.

Replacement Considerations

TL431MFDT,215 is listed as a similar substitute part number.