TL432AQDBZT

Overview

The TL432AQDBZT is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range up to 37 V and provides an adjustable output voltage from 2.495 V to 36 V. The device features an initial accuracy of 1% and a temperature coefficient of 92 PPM/°C. It supports a maximum cathode current of 100 mA with a minimum operating current of 600 µA. The component functions reliably across an extended temperature range from -40°C to +125°C. It is housed in a compact SOT-23-3 surface-mount package, suitable for space-constrained power management applications.

Feature Summary

• Provides precise adjustable voltage regulation with high initial accuracy
• Operates over an extended industrial temperature range for robust performance
• Utilizes a compact three-terminal SOT-23 surface-mount package design

Applications

• Precision voltage reference circuits requiring adjustable output
• Power management integrated circuits in consumer electronics
• Battery-powered devices needing stable voltage regulation

Procurement Notes

Verify the specific suffix 'AQ' confirms the 1% initial accuracy and extended temperature grade (-40°C to +125°C) against the official datasheet. Ensure the 'DBZT' designation matches the required SOT-23-3 package and tape-and-reel configuration. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and compliance with RoHS standards before finalizing procurement orders.

Selection Notes

Select this component when an adjustable shunt regulator with 1% accuracy and wide temperature tolerance is required. It serves as a direct replacement for standard TL432 variants where higher precision and industrial-grade thermal stability are necessary. Consider the SOT-23-3 footprint constraints and the 100 mA current handling capability during circuit design to ensure compatibility with load requirements.

Part Context

This device belongs to the TL432 family of adjustable precision shunt regulators from Texas Instruments. It shares architectural similarities with the TL431 series but offers distinct packaging and specific accuracy grades. The AQ variant specifically targets applications demanding tighter initial accuracy and broader operational temperature ranges compared to standard commercial grade parts within the same product line.

Replacement Considerations

TL432BIDBZT offers ±0.5% accuracy but limited to 85°C. TL432IDBZT provides 2% accuracy with full -40°C to 125°C range. TL432AQDBZRG4 is the lead-free (G4) version of the same electrical specification.