TLVH431CLPR

Overview

The TLVH431CLPR is a precision shunt regulator from Texas Instruments, designed for low-voltage applications. It features a reference voltage of 1.24V with an initial accuracy of ±0.5% and a temperature coefficient of 50ppm/°C. The device operates within a cathode-to-anode voltage range of 2.4V to 15V and supports a cathode current range of 50µA to 100mA. It offers high loop gain and low output impedance, ensuring stable regulation. The component is housed in a SOT-23 package, suitable for space-constrained designs.

Feature Summary

• Precision reference voltage with tight initial accuracy and low temperature drift
• Wide operating voltage range supporting low-voltage systems
• High loop gain for improved line and load regulation performance
• Compact surface-mount packaging for efficient board space utilization

Applications

• Battery-powered portable electronics requiring precise voltage references
• Low-voltage power supply circuits needing stable shunt regulation
• Feedback networks in DC-DC converters for accurate output control
• Over-voltage protection circuits in consumer devices

Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct package type and tape-and-reel specifications. Confirm that the supplier provides traceability to authorized distribution channels. Check datasheet revisions for any updates to electrical characteristics or recommended operating conditions before finalizing procurement orders.

Selection Notes

Select this component when a low-voltage, high-precision shunt regulator is required. Ensure the application voltage stays within the specified 2.4V to 15V range. Consider the thermal performance and package size constraints. Verify that the required cathode current falls within the 50µA to 100mA operational window for optimal stability and accuracy.

Part Context

This device belongs to the TLVH431 family of adjustable precision shunt regulators. It serves as a cost-effective alternative to Zener diodes in low-voltage applications where higher accuracy and better temperature stability are necessary. The family includes various package options and tolerance grades to suit different design requirements.

Replacement Considerations

Compatible substitutes include the TLVH431AIDBVR and TLVH431ACLP. Verify pin compatibility and electrical parameter alignment, particularly reference voltage accuracy and operating voltage ranges, before substitution.