LM431AIBP

Voltage Reference Overview

The LM431AIBP 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 provides an initial accuracy of ±2.2%. The device supports a maximum shunt current of 100 mA and features a temperature coefficient of 50 ppm/°C. It functions across a temperature range of -40°C to +85°C and is housed in a 4-DSBGA surface-mount package.

Voltage Reference Feature Summary

• Adjustable output voltage capability spanning from 2.495 V up to 37 V
• Precision reference performance with specified initial accuracy and low temperature drift
• Capable of handling high cathode currents for robust regulation

Voltage Reference Applications

• General-purpose voltage regulation circuits
• Portable equipment power management
• Battery-powered system references

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix and package variant matches design requirements. Check lifecycle status as availability may vary. Ensure compliance with RoHS directives if required by the target application environment.

Voltage Reference Selection Notes

Select this component when a compact surface-mount solution is required for precise voltage referencing. Consider the 4-DSBGA package constraints for PCB layout. Evaluate thermal performance within the specified operating temperature range. Compare against other LM431 variants if different accuracy grades or through-hole packages are preferred.

Voltage Reference Part Context

This part belongs to the LM431 family of programmable shunt regulators. These devices function similarly to voltage-controlled Zener diodes but offer adjustable breakdown voltages via external resistors. The LM431 series is widely used in power supplies, battery chargers, and control circuits requiring stable reference voltages.

Voltage Reference Replacement Considerations

Check for LM431AIBP/NOPB equivalents. Verify pinout compatibility with existing footprints. Ensure electrical parameters such as max current and voltage ranges meet circuit demands.