LMV431AIZ/NOPB

Voltage Reference Overview

The LMV431AIZ/NOPB is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. 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 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 temperature coefficient of 138 ppm/°C. The component is housed in a TO-92-3 through-hole package.

Voltage Reference Feature Summary

• Adjustable precision shunt regulation topology
• Low-voltage operation starting at 1.24 V
• High initial accuracy for stable reference performance

Voltage Reference Applications

• Precision voltage references in battery-powered systems
• Programmable power supply feedback loops
• Comparator reference voltage generation

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per the manufacturer's latest documentation. Ensure the ordering part number matches the required package style and temperature grade. Cross-reference the datasheet revision date to confirm parameter validity before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when a low-voltage adjustable reference is required in a through-hole configuration. The 1% initial accuracy suits applications demanding tighter tolerance than standard Zener diodes. Verify that the 15 mA maximum shunt current meets the circuit's load requirements and that the 35 V maximum input voltage exceeds the system's operating potential.

Voltage Reference Part Context

This part belongs to the LMV431A family of low-voltage adjustable precision shunt regulators. It serves as a drop-in replacement for traditional fixed Zener diodes in many linear regulator and reference circuits. The 'A' designation indicates improved accuracy compared to standard variants, while the 'NOPB' suffix denotes non-pb-free packaging compliant with environmental directives.

Voltage Reference Replacement Considerations

LMV431AIZ-NOPB is listed as an alternative identifier for the same component.