LM431CCMX

Voltage Reference Overview

The LM431CCMX is a three-terminal adjustable shunt regulator manufactured by Texas Instruments. It operates within an output voltage range of 2.495 V to 37 V and features an initial accuracy of 1%. The device has a maximum series reference input voltage of 37 V and a maximum shunt current of 100 mA. It exhibits a temperature coefficient of 97 ppm/°C and functions between -40°C and +85°C. The component is housed in an SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Three-terminal adjustable precision shunt regulation architecture
• Ensured temperature stability across the full operating range
• Surface-mount compatible design for automated assembly

Voltage Reference Applications

• General-purpose voltage reference circuits
• Programmable power supply feedback loops
• Battery charging management systems

Voltage Reference Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm pinout compatibility and electrical tolerances. Ensure the ordering code matches the required package style and temperature grade. Cross-reference the datasheet revision date to validate parameter consistency before integration into production designs.

Voltage Reference Selection Notes

Select this component when a low-cost, high-accuracy adjustable reference is required in a compact surface-mount form factor. The 1% initial accuracy and wide operating voltage range make it suitable for applications demanding stable reference voltages without complex external compensation networks.

Voltage Reference Part Context

This part belongs to the LM431 family of adjustable precision Zener shunt regulators. These devices serve as direct replacements for traditional fixed-zener diodes, offering superior performance in terms of temperature stability and dynamic impedance while maintaining flexibility through external resistor programming.

Voltage Reference Replacement Considerations

Compatible substitutes include LM431BIM3X/NOPB and LM431AIM3X/NOPB from Texas Instruments, which share identical pinouts and functional characteristics within the same package constraints.