LMV431AIZ/LFT3

Voltage Reference Overview

The LMV431AIZ/LFT3 is a low-voltage adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within an output voltage range of 1.24 V to 30 V and maintains an initial accuracy of 1%. The device supports a maximum shunt current of 15 mA and withstands a maximum series reference input voltage of 35 V. It functions reliably across a temperature range from -40 °C to +85 °C, with a typical temperature coefficient of 138 ppm/°C. The component is housed in a 3-pin TO-92 package designed for through-hole mounting.

Voltage Reference Feature Summary

• Provides low-voltage adjustable precision regulation suitable for sensitive circuitry
• Delivers high initial accuracy for stable reference performance
• Operates effectively across extended industrial temperature ranges

Voltage Reference Applications

• Battery-powered equipment requiring precise voltage monitoring
• Portable instruments needing low-power reference sources
• General-purpose voltage regulation in compact designs

Voltage Reference Procurement Notes

Verify the specific suffix LFT3 against official datasheets to confirm packaging details such as ammo pack configuration. Ensure the manufacturer designation matches Texas Instruments specifications. Cross-reference the part number with authorized distributors to validate authenticity and compliance with RoHS standards before procurement.

Voltage Reference Selection Notes

Select this component when low-voltage operation below standard 2.5 V references is required. It is appropriate for applications where space constraints favor the TO-92 package over surface-mount alternatives. Consider the 15 mA current limit when designing load circuits to ensure adequate headroom for regulation stability.

Voltage Reference Part Context

This part belongs to the LMV431A family of low-voltage shunt regulators. It serves as a specialized alternative to higher-voltage counterparts like the LM431, offering functionality at reduced supply levels. The family is widely used in consumer electronics and portable devices where power efficiency and compact form factors are critical design parameters.

Voltage Reference Replacement Considerations

Compatible substitutes include LMV431AIZ/NOPB and LMV431AIZ-LFT3. Verify pinout compatibility and electrical parameter alignment before substitution.