TLV431BCLPE3

Overview

The TLV431BCLPE3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of 2.5 V to 36 V and provides an adjustable output voltage from 1.24 V to 36 V. The device features an initial accuracy of 0.5% and a temperature coefficient of 138 ppm/°C. It supports a maximum cathode current of 100 mA and functions across a temperature range of -40°C to +125°C. Packaged in a TO-92-3 through-hole format, it serves as a cost-effective reference for power management applications.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V up to the maximum input limit
• High precision regulation with 0.5% initial accuracy tolerance
• Robust thermal stability maintained across extended industrial temperature ranges

Applications

• Precision voltage references in battery-powered equipment
• Programmable output regulators in switching power supplies
• Comparator references in analog signal processing circuits

Procurement Notes

Verify component authenticity against official Texas Instruments documentation due to widespread availability of counterfeits. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet to prevent soldering defects during assembly processes.

Selection Notes

Select this component when a low-cost, high-precision shunt regulator is required for through-hole designs. The TO-92-3 package suits prototyping and low-volume manufacturing. Consider the 100 mA current limit for load requirements. Verify that the 1.24 V internal reference meets the specific feedback network design needs for the target application voltage range.

Part Context

This part belongs to the TLV431 family of low-voltage adjustable precision shunt regulators. It replaces older standard TL431 devices while offering improved performance characteristics such as lower noise and better temperature stability. The suffix 'E3' indicates lead-free composition compliant with RoHS directives, aligning with modern environmental standards for electronic components.

Replacement Considerations

Direct replacements include TLV431ACLP and TLV431BCLP for similar performance tiers. For automotive applications, consider the AEC-Q100 qualified TLV431BQDBVR. Standard TL431 variants may fit electrically but lack the optimized low-voltage characteristics of the TLV series.