TLVH431AQLPE3

Overview

The TLVH431AQLPE3 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% 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. Designed for through-hole mounting, it utilizes the TO-92-3 package. The component functions reliably across an extended industrial temperature range spanning from -40°C to +125°C.

Feature Summary

• Provides adjustable precision voltage regulation suitable for low-voltage applications
• Ensures stable performance across wide industrial temperature extremes
• Supports high cathode current capacity for robust load handling

Applications

• Battery-powered equipment requiring precise voltage references
• Industrial control systems utilizing shunt regulation
• Power management circuits in automotive environments

Procurement Notes

Verify the specific suffix 'E3' indicates RoHS compliance and lead-free construction as per manufacturer specifications. Confirm the package type matches the required through-hole TO-92-3 footprint for your PCB design. Ensure the selected variant meets the necessary AEC-Q100 qualification if used in automotive contexts. Cross-reference datasheet revisions to confirm electrical characteristics align with your system requirements before finalizing procurement.

Selection Notes

Select this component when a through-hole adjustable shunt regulator is required for low-voltage precision applications. The 1% initial accuracy and 138 PPM/°C temperature coefficient make it suitable for general-purpose reference needs. Consider the TO-92-3 package constraints regarding board space and thermal dissipation. Verify that the 80 mA maximum cathode current suffices for the intended load conditions within the 2.5 V to 20 V input range.

Part Context

This part belongs to the TLVH431A series of low-voltage adjustable precision shunt regulators from Texas Instruments. It serves as a specialized alternative to standard zener diodes, offering superior stability and adjustability. The series is designed for power management integrated circuits (PMIC) applications where precise voltage referencing is critical under varying temperature and load conditions.

Replacement Considerations

The TLVH431BQLPR is documented as an upgrade replacement for similar legacy parts in the TLVH431A family. Verify pinout compatibility and electrical parameter alignment before substitution.