LM431CCM3X/NOPB

Voltage Reference Overview

The LM431CCM3X/NOPB is an adjustable precision Zener shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 37 V and supports a maximum shunt current of 100 mA. The device features an initial accuracy of 1% and a temperature coefficient of 97 ppm/°C. It is housed in a SOT-23-3 surface-mount package and functions reliably across an operating temperature range from -40°C to +85°C.

Voltage Reference Feature Summary

• Adjustable output voltage capability spanning from 2.495 V up to 37 V
• High precision performance with 1% initial accuracy specification
• Robust thermal stability characterized by a 97 ppm/°C temperature coefficient

Voltage Reference Applications

• Precision voltage reference sources for analog circuits
• Programmable linear power supply regulation
• Battery-operated equipment requiring stable reference voltages

Voltage Reference Procurement Notes

Verify the specific suffix 'CCM3X' against official Texas Instruments documentation to confirm pinout compatibility and electrical tolerances. Ensure the component matches the required SOT-23-3 footprint and lead-free specifications. Cross-reference datasheet revisions to validate performance parameters before integration into final designs.

Voltage Reference Selection Notes

Select this component when a compact surface-mount solution is required for adjustable shunt regulation. The SOT-23-3 package offers space efficiency compared to through-hole alternatives. Consider the 1% accuracy and 97 ppm/°C drift if high precision over wide temperature ranges is critical for the application design.

Voltage Reference Part Context

This part belongs to the LM431 family of adjustable precision Zener shunt regulators. It serves as a direct replacement for legacy components like the LM431AIM3X, offering equivalent functionality in modern surface-mount packaging. The NOPB suffix indicates compliance with RoHS standards and absence of lead-based materials.