TLVH432QPK

Overview

The TLVH432QPK is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of up 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. Maximum cathode current is 80 mA, with a minimum operating current of 80 µA. It functions in temperatures from -40°C to +125°C and is housed in a SOT-89-3 package.

Feature Summary

• Adjustable precision shunt regulation capability
• Low-voltage operation suitable for battery-powered systems
• High thermal stability across extended industrial temperature ranges

Applications

• Battery monitoring and management circuits
• Portable electronic device power supplies
• Precision voltage reference generation
• Feedback loop compensation in switching regulators

Procurement Notes

Verify component authenticity through authorized Texas Instruments channels or certified distributors. Confirm the specific suffix QPK corresponds to the SOT-89-3 surface-mount package. Ensure compliance with RoHS directives and check moisture sensitivity level handling requirements during storage and assembly processes.

Selection Notes

Select this component when precise low-voltage shunt regulation is required in compact designs. Consider the 1.5% initial accuracy and 138 PPM/°C temperature coefficient for applications demanding stable reference voltages. Evaluate the SOT-89-3 package constraints against available board space and thermal dissipation needs.

Part Context

This part belongs to the TLVH432 series of low-voltage adjustable precision shunt regulators. It serves as a compact alternative to traditional bandgap references in space-constrained portable electronics. The series emphasizes low quiescent current and wide operating voltage ranges for efficient power management.

Replacement Considerations

Public confirmed substitute part numbers include TLVH432AQPK and TLVH432BPK.