TL432QDBVR

Overview

The TL432QDBVR is an adjustable precision shunt regulator manufactured by Texas Instruments, designed for high-accuracy voltage reference applications. It operates within a cathode voltage range of 2.5 V to 36 V and features an initial accuracy of 1%. The device supports a maximum cathode current of 100 mA and maintains stability with all capacitor loads. It functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount format, it integrates into power management circuits requiring precise regulation without external trimming.

Feature Summary

• Provides adjustable precision shunt regulation with 1% initial accuracy
• Ensures stability with all capacitor load types
• Operates within a wide cathode voltage range up to 36 V
• Supports high cathode current capability of 100 mA

Applications

• Precision voltage references in power supply circuits
• Programmable output regulators
• Battery-operated equipment requiring stable reference voltages
• Industrial control systems needing accurate shunt regulation

Procurement Notes

Verify the complete part number including suffixes such as QDBZR against official Texas Instruments documentation to ensure correct package type and automotive qualification status. Confirm RoHS compliance and moisture sensitivity level requirements prior to ordering. Cross-reference distributor listings with manufacturer datasheets to validate authenticity and avoid counterfeit components. Ensure storage conditions meet specified limits to maintain device integrity before assembly.

Selection Notes

Select this component when circuit design requires a 1% accuracy reference with all-capacitor stability in a small SOT-23-3 package. It is suitable for applications demanding high cathode current handling up to 100 mA. Consider the extended temperature range for harsh environments. Compare against standard TL432 variants if automotive qualification or specific suffix codes are not required for the final product specification.

Part Context

This device belongs to the TL432 family of adjustable precision shunt regulators from Texas Instruments. It shares functional similarities with the TL431 but offers distinct packaging and performance characteristics tailored for space-constrained designs. The Q suffix typically indicates automotive-grade qualification, aligning with AEC-Q100 standards for reliability in automotive electronics applications.

Replacement Considerations

Direct substitutes include other Texas Instruments TL432 variants with compatible pinouts and electrical specifications. Verify that alternative parts match the 1% accuracy and 100 mA current requirements. Check package compatibility to ensure seamless integration into existing PCB layouts without redesign.