TLVH431AQPKG3

Overview

The TLVH431AQPKG3 is a discontinued adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a cathode voltage range of 1.24 V to 18 V and features an initial accuracy of ±1%. The device supports a maximum cathode current of 70 mA and maintains a temperature coefficient of 138 PPM/°C across an operating temperature range of -40°C to +125°C. It is housed in the SOT-89-3 surface-mount package.

Feature Summary

• Provides stable, adjustable reference voltage output for precision circuit applications
• Ensures high accuracy with low temperature drift characteristics over extended industrial temperatures
• Designed for compact surface-mount integration using standard footprint dimensions

Applications

• Portable battery-powered equipment requiring precise voltage regulation
• Industrial control systems utilizing programmable power supplies
• Communication infrastructure equipment needing reliable reference standards

Procurement Notes

This component has been officially discontinued and is no longer in active production. Verification of availability should focus on surplus or secondary market sources rather than direct manufacturer allocation. Engineers must confirm end-of-life status through official Texas Instruments notifications before initiating procurement processes to ensure supply chain stability.

Selection Notes

Designers seeking equivalent performance should evaluate current generation alternatives within the TLVH431 family that offer updated manufacturing support. Selection criteria must prioritize matching the required accuracy, thermal stability, and package compatibility while ensuring the replacement part remains commercially available for long-term project viability.

Part Context

The TLVH431 series represents Texas Instruments' portfolio of low-voltage adjustable shunt regulators designed for cost-sensitive and space-constrained environments. This specific variant utilizes the SOT-89-3 package to provide robust performance in portable and industrial applications where precise voltage referencing is critical for system operation and signal integrity.

Replacement Considerations

Public records indicate the TLVH431QPK as a confirmed substitute part number offering identical electrical specifications and pinout configuration. Designers should verify package compatibility and review updated datasheets for any minor procedural changes before implementing the replacement in existing designs.