TL431

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

PROGRAMMABLE PRECISION 

REFERENCE 

 DESCRIPTION 

The UTC TL431 is a three-terminal adjustable regulator with a 

guaranteed thermal stability over applicable temperature ranges. 

The output voltage may be set to any value between VREF 

(approximately 2.5V) and 36V with two external resistors. It provides 

very wide applications, including shunt regulator, series regulator, 

switching regulator, voltage reference and others. 

 FEATURES

* Programmable output Voltage to 36V. 

* Low dynamic output impedance 0.2Ω. 

* Sink current capability of 1.0 to 100mA. 

* Equivalent full-range temperature coefficient of 50ppm/°C 

typical for operation over full rated operating temperature range.

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice