TLV431AILPME3

Overview

The TLV431AILPME3 is a low-voltage adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 6 V and provides an adjustable output voltage from 1.24 V to 6 V. The device features an initial accuracy of ±1% and a maximum temperature coefficient of 138 ppm/°C. It supports a cathode current range up to 15 mA and functions reliably across an operating temperature range of -40°C to +125°C. The component is housed in a SOT-23-5 surface-mount package.

Feature Summary

• Adjustable output voltage capability via external resistor divider
• High precision with guaranteed initial accuracy over the full temperature range
• Low operating current suitable for power-constrained designs
• Wide operating temperature range for industrial applications

Applications

• Battery-operated equipment
• Switch mode power supplies
• Data acquisition systems
• Energy management circuits

Procurement Notes

Verify the specific suffix 'E3' against the manufacturer's official documentation to confirm lead-free status and RoHS compliance details. Ensure the ordering part number matches the exact package type and temperature grade required for the design. Cross-reference the datasheet revision history for any recent manufacturing changes or pinout updates before finalizing procurement.

Selection Notes

Select this component when a low-cost, high-precision reference is needed in a small SOT-23-5 footprint. It is suitable for applications requiring an adjustable reference voltage between 1.24 V and 6 V with tight tolerance requirements. Consider the 15 mA sink current limit and the 138 ppm/°C temperature coefficient when designing for wide thermal variations.

Part Context

This part belongs to the TLV431 family of adjustable shunt regulators from Texas Instruments. These devices are designed as drop-in replacements for traditional Zener diodes and fixed references like the TL431, offering improved performance at lower voltages. The family includes various packages and accuracy grades to suit different space and precision constraints.

Replacement Considerations

Compatible substitutes include other TLV431 variants with similar accuracy and package types, such as TLV431AIDBVT or TLV431AIDBZR. Verify that alternative parts match the SOT-23-5 package dimensions and electrical specifications, particularly the 1% initial accuracy and 15 mA cathode current rating.