LMV431AIMFX

Voltage Reference Overview

The LMV431AIMFX is a low-voltage adjustable shunt voltage reference manufactured by Texas Instruments. It operates within an output voltage range of 1.24 V to 30 V and provides an initial accuracy of 1%. The device supports a maximum shunt current of 15 mA with a minimum operating current of 100 µA. It features a maximum temperature coefficient of 138 ppm/°C and withstands a maximum series input voltage of 35 V. The component functions in an industrial temperature range from -40°C to +85°C and is housed in a surface-mount SOT-23-3 package.

Voltage Reference Feature Summary

• Adjustable output voltage capability spanning from 1.24 V up to 30 V for flexible circuit design
• High precision performance with 1% initial accuracy and low temperature drift characteristics
• Low power operation enabled by a minimal cathode current requirement of 100 µA

Voltage Reference Applications

• Portable battery-powered equipment requiring precise voltage regulation
• Microcontroller supply monitoring and reset circuits
• General-purpose voltage reference sources in compact designs

Voltage Reference Procurement Notes

Verify the specific suffix 'F' indicates the tape and reel packaging configuration distinct from cut tape or tube options. Confirm the 'A' grade designation aligns with the required 1% initial accuracy specifications for your application. Ensure the SOT-23-3 footprint matches your PCB layout constraints. Cross-reference the NOPB lead-free status if environmental compliance is mandatory for your manufacturing process.

Voltage Reference Selection Notes

Select this component when space-constrained designs require a precision reference in a small SOT-23-3 package. It is suitable for applications needing adjustable outputs below 30 V with strict accuracy requirements. Consider the 15 mA current limit when designing load conditions. Verify that the 138 ppm/°C temperature coefficient meets the thermal stability needs of the target environment compared to higher-grade alternatives.

Voltage Reference Part Context

This part belongs to the LMV431A family of low-voltage shunt references, designed as a drop-in replacement for standard Zener diodes in precision applications. The LMV431 series offers improved performance over traditional references while maintaining compatibility with common circuit topologies. The AIMFX variant specifically denotes the automotive or industrial grade availability in reel packaging for automated assembly processes.

Voltage Reference Replacement Considerations

• LMV431AIMFX/NOPB