TL431 SOT-23 Precision Adjustable Shunt Voltage Reference

TL431 SOT-23 Adjustable Precision Shunt Voltage Reference

The TL431 is a high-precision, adjustable shunt voltage reference IC. Using its internal 2.5V reference and external resistors, it provides an adjustable output voltage range from 2.5V to 36V. With a tight ±1% tolerance, it is well suited for applications requiring accurate voltage reference and regulation.

The SOT-23 surface-mount package is ideal for compact circuit designs and automated assembly processes. Thanks to its low dynamic impedance, fast response time, and output current capability of up to 150mA, the TL431 is widely used as an alternative to Zener diodes in switching power supplies, SMPS feedback circuits, overvoltage protection, and precision current regulation applications.

TL431 Technical Specifications:

• Adjustable precision shunt voltage reference

• Output voltage range: 2.5V – 36V

• Reference tolerance: ±1%

• Maximum cathode voltage: 37V

• Output current: 1mA – 150mA

• Low dynamic output impedance: 0.2Ω (typical)

• Minimum regulation current: 1mA

• Operating temperature range: -25°C to +85°C

• Output type: Adjustable

• Package type: SOT-23 (SMD)

Useful Links / Documents:

• Datasheet
• EasyEDA Model

Similar Products:

• Voltage Regulators