TL431LP-BP

Overview

The TL431LP-BP is an adjustable shunt regulator manufactured by Micro Commercial Components (MCC). It functions as a precision voltage reference with an output voltage range of 2.5V to 36V. The device features a temperature-compensated internal reference of 2.5V and supports cathode currents from 1mA to 100mA. Packaged in TO-92, it serves as an open-loop error amplifier for power supply regulation.

Feature Summary

• Adjustable output voltage capability up to 36V
• Temperature compensated 2.5V reference
• Sink current capability ranging from 1mA to 100mA

Applications

• Precision voltage references
• Power supply regulation
• Open-loop error amplifiers

Procurement Notes

Verify the manufacturer designation carefully, as some listings associate this part number with Texas Instruments while others specify Micro Commercial Components. Confirm the package type is TO-92 and the operating temperature range matches your requirements before procurement. Ensure the specific suffix aligns with your supply chain needs.

Selection Notes

Select this component when a low-cost, adjustable shunt regulator is required for linear power supplies or feedback loops. It is suitable for applications needing a stable 2.5V reference or programmable output voltages up to 36V within a small through-hole package.

Part Context

This part belongs to the TL431 family of programmable shunt regulators. These devices are widely used in switching power supplies and battery chargers. The TL431 series provides a cost-effective solution for voltage regulation compared to Zener diodes, offering better accuracy and temperature stability.

Replacement Considerations

Compatible substitutes include the standard TL431AIZ and equivalent adjustable shunt regulators from other manufacturers such as STMicroelectronics or Texas Instruments, provided they share the TO-92 package and similar electrical characteristics.