TLVH432AQDBZT

Overview

The TLVH432AQDBZT is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of 1.5% and a temperature coefficient of 138 PPM/°C. It supports a maximum cathode current of 80 mA with a minimum operating current of 80 µA. The component is housed in a SOT-23-3 package and functions reliably across an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Adjustable precision shunt regulation with wide operating current range
• Low-voltage operation suitable for battery-powered applications
• Extended industrial temperature rating for harsh environments

Applications

• Battery-operated equipment requiring precise voltage monitoring
• Portable devices utilizing low-voltage power supplies
• Industrial control systems needing reliable reference voltages

Procurement Notes

Verify the specific suffix 'Q' indicates automotive qualification requirements if applicable to your design. Confirm the 'A' grade specifies the 1.5% initial accuracy tolerance against standard grades. Ensure the SOT-23-3 package dimensions match your PCB footprint constraints. Check RoHS compliance status through official manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when designing circuits that require a stable reference voltage under low-voltage conditions. The adjustable output allows flexibility in setting reference levels without external resistors for basic configurations. Consider the thermal performance within the SOT-23-3 package for high-current applications. Evaluate the temperature coefficient requirements against the specified 138 PPM/°C value for precision needs.

Part Context

This part belongs to the TLVH432 family of low-voltage adjustable shunt regulators from Texas Instruments. It serves as a compact alternative to traditional Zener diodes, offering superior stability and lower dynamic impedance. The family includes variants with different accuracy grades and temperature ranges to suit various industrial and consumer electronics applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.