LMV431ACM5

Voltage Reference Overview

The LMV431ACM5 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments, which acquired National Semiconductor. It operates within an output voltage range of 1.24 V to 30 V and features an initial accuracy of 1%. The device supports a maximum shunt current of 15 mA and has a temperature coefficient of 138 PPM/C. It functions with a maximum input voltage of 35 V and operates across a temperature range from -40°C to +85°C. The component is housed in a SOT-23-5 surface-mount package.

Voltage Reference Feature Summary

• Provides adjustable reference voltage functionality using a two-terminal shunt regulation architecture
• Delivers high precision performance with specified initial accuracy for stable reference applications
• Designed for low-voltage operation suitable for portable and battery-powered electronic systems

Voltage Reference Applications

• Portable equipment requiring precise voltage references
• Battery-operated systems needing stable regulation
• General-purpose voltage reference circuits

Voltage Reference Procurement Notes

Verify the manufacturer designation carefully, as this component was originally produced by National Semiconductor before its acquisition by Texas Instruments. Ensure the ordering suffix matches the required specifications, such as the 'A' grade for accuracy and 'CM5' for the specific package type. Confirm RoHS compliance status through official documentation prior to procurement to meet environmental standards.

Voltage Reference Selection Notes

Select this component when a low-cost, adjustable shunt regulator is required for space-constrained designs utilizing the SOT-23-5 package. Consider the 1% initial accuracy and 138 PPM/C temperature coefficient for applications demanding moderate precision. Evaluate the 15 mA maximum shunt current limit to ensure it meets the load requirements of the target circuit design.

Voltage Reference Part Context

This part belongs to the LMV431 series of low-voltage adjustable precision shunt regulators. The series is widely used in power management applications where a compact, accurate voltage reference is needed. The LMV431ACM5 specifically denotes the adjustable version with defined accuracy grades and packaging, serving as a key component in analog signal conditioning and power supply feedback loops.

Voltage Reference Replacement Considerations

Compatible substitutes include the LMV431BCM5/NOPB and LMV431AIMX/NOPB. Verify pin compatibility and electrical parameters against the original datasheet before implementation.