TL432QDBVRE4

Overview

The TL432QDBVRE4 is an automotive-grade, low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 36 V and provides an adjustable output voltage from the internal reference level up to 36 V. The device features a typical initial accuracy of 1% and supports a cathode sink current range from 80 µA to 100 mA. Designed for robust performance in harsh environments, it functions reliably across an extended temperature range of -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, this component integrates high precision with automotive qualification standards.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 standards for sustained operation in demanding vehicle environments
• Adjustable output voltage capability spanning from the internal reference threshold up to the maximum supply rail
• High precision regulation with guaranteed tight tolerance on the reference voltage for accurate circuit control
• Wide operating temperature range ensuring stable performance across extreme thermal conditions

Applications

• Automotive power management systems requiring qualified voltage references
• Precision linear regulators where stable reference voltage is critical
• Switching power supplies utilizing shunt regulation for feedback loops
• Battery charging circuits needing accurate voltage monitoring and control

Procurement Notes

Verify the specific suffix RE4 confirms the reel packaging configuration required for your assembly line. Confirm that the Q designation aligns with your project's automotive qualification requirements. Ensure the SOT-23-5 footprint matches your PCB layout constraints. Cross-reference the datasheet revision date to guarantee compatibility with your design specifications. Validate that the component meets all environmental compliance standards mandated for your final product deployment.

Selection Notes

Select this component when automotive qualification is mandatory for your voltage reference application. Choose this part if your design requires an adjustable shunt regulator capable of handling up to 36 V. Consider this option when precise initial accuracy is necessary for sensitive measurement or control circuits. Opt for this device if your system operates in extreme temperatures requiring extended industrial or automotive grade ratings.

Part Context

This component belongs to the TL432 family of low-voltage adjustable precision shunt regulators. It serves as a direct replacement for standard TL431 devices but offers enhanced automotive qualification and optimized low-voltage performance characteristics. The family is widely used in power supply designs requiring reliable, compact, and precise voltage referencing solutions for both consumer and industrial electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.