LMV431AIM5X

Voltage Reference Overview

The LMV431AIM5X 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 features a temperature coefficient of 138 ppm/°C and supports a maximum series input voltage of 35 V. It handles a maximum shunt current of 15 mA with a minimum operating current of 100 µA. The component functions reliably across a temperature range of -40°C to +85°C and is housed in an SOT-23-5 surface-mount package.

Voltage Reference Feature Summary

• Provides precise adjustable voltage referencing with 1% initial accuracy for stable circuit performance.
• Operates at low voltages starting from 1.24 V, suitable for battery-powered applications.
• Features low dynamic impedance characteristics inherent to the shunt reference topology.

Voltage Reference Applications

• Portable consumer electronics requiring low-power voltage regulation
• Battery-operated devices needing precise reference levels
• General-purpose analog signal conditioning circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official documentation to confirm packaging details such as reel size or tape specifications. Ensure the ordering part number matches the exact electrical grade and package variant required for your design. Cross-reference the datasheet revision history for any updates to mechanical outlines or recommended soldering profiles before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a low-cost, adjustable shunt reference is needed for space-constrained designs using the SOT-23-5 package. It is appropriate for applications where 1% accuracy and 138 ppm/°C stability are sufficient. Consider the 15 mA current limit and 35 V max input voltage when designing the biasing network. Compare against fixed references if higher precision or lower temperature drift is required.

Voltage Reference Part Context

This part belongs to the LMV431A family of low-voltage adjustable shunt references from Texas Instruments. It shares functional similarities with other LMV431 variants but differs in package type and specific suffix designations. The family is designed to replace older Zener diodes in low-voltage regulator and comparator applications, offering better accuracy and temperature stability.

Voltage Reference FAQ

What is the minimum cathode current required for proper regulation?

The device requires a minimum cathode current of 100 µA to maintain regulation within specified parameters.

Can this component be used as a comparator?

Yes, the LMV431AIM5X can function as a comparator due to its fast response time and open-collector output structure.