TLVH432QPKG3

Overview

The TLVH432QPKG3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range 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. It supports a maximum shunt current of 80 mA with a minimum operating current of 80 µA. The component functions reliably across a temperature range of -40°C to +125°C and is housed in a SOT-89-3 surface-mount package.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V to 18 V via external resistor divider
• Precision regulation with 1.5% initial accuracy for stable reference performance
• Wide thermal stability ensuring consistent operation across industrial temperature ranges
• Low power consumption suitable for battery-operated and space-constrained designs

Applications

• Battery chargers requiring precise voltage monitoring
• Switch mode power supplies needing accurate feedback references
• Data acquisition systems utilizing stable voltage benchmarks
• Energy management circuits in portable electronic devices

Procurement Notes

Verify the specific suffix 'G3' against the manufacturer's latest documentation, as it may indicate RoHS compliance or packaging variations. Confirm availability status, as some listings indicate end-of-life transitions for this series. Ensure the SOT-89-3 package matches your PCB footprint requirements. Check for moisture sensitivity level constraints during storage and handling procedures before assembly.

Selection Notes

Select this component when a low-voltage adjustable reference is required with moderate precision. The 1.5% accuracy suits general-purpose applications where tighter tolerances are unnecessary. Consider the SOT-89-3 package size relative to board space limitations. Evaluate the 80 mA sink current capability against load requirements to ensure adequate headroom for dynamic operations without exceeding thermal limits.

Part Context

This part belongs to the TLVH432 family of low-voltage adjustable precision shunt regulators. It serves as a cost-effective alternative to higher-voltage counterparts like the TL432, specifically optimized for lower supply voltages. The QPKG3 designation typically denotes automotive-grade qualification and tape-and-reel packaging, distinguishing it from standard commercial variants.

Replacement Considerations

Publicly confirmed substitute part numbers include TLVH432AQPK and TLVH432QPK. Verify pinout compatibility and electrical specifications before substitution. Note that ordering suffixes may affect packaging or qualification levels but do not inherently change functional parameters unless explicitly stated in official datasheets.