LM431BIMX

Voltage Reference Overview

The LM431BIMX is a two-terminal adjustable precision shunt voltage reference manufactured by onsemi. It operates as an adjustable Zener diode with a cathode current range of 1 mA to 100 mA and a maximum operating voltage of 36 V. The device provides an output voltage range from 2.5 V to 36 V, determined by external resistors. It features an initial accuracy of ±1% and a standard temperature coefficient of 50 ppm/°C. The component is housed in a SOT-23-3 surface-mount package and functions within a temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Adjustable output voltage capability via external resistor divider network
• High precision performance with low temperature drift characteristics
• Wide operating cathode current range supporting diverse load conditions

Voltage Reference Applications

• Precision voltage references for analog circuits
• Programmable power supply output regulation
• Portable equipment battery monitoring systems

Voltage Reference Procurement Notes

Verify the specific suffix 'M' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging configuration and lot traceability requirements. Ensure that the ordering information matches the precise electrical tolerances and package dimensions listed in the current datasheet before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a compact surface-mount solution is required for adjustable voltage referencing applications. The ±1% initial accuracy makes it suitable for precision measurement systems. Consider the 36 V maximum voltage rating and the SOT-23-3 footprint constraints during the circuit layout phase to ensure compatibility with existing board designs.

Voltage Reference Part Context

This part belongs to the LM431 family of adjustable precision shunt regulators. These devices serve as drop-in replacements for fixed Zener diodes in many applications, offering superior stability and adjustability. The family is widely used in industrial and consumer electronics where reliable voltage regulation is critical.

Voltage Reference Replacement Considerations

Compatible alternatives include the LM431AIMX and LM431CIMX from onsemi, which offer different accuracy grades. Texas Instruments equivalents such as the LM431BIM3/NOPB provide similar electrical specifications in compatible packages.