1431B

The TS1431/1431A/1431B integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic  IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 volts with  two external resistors. These devices exhibit a wide operating current range of 1.0 to 100mA with a typical dynamic  impedance of 0.22Ω. The characteristics of these references make them excellent replacements for zener diodes in many  applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5volt reference makes it  nvenient to  obtain a stable reference from 5.0volt logic supplies, and since The TS1431/1431A/1431B operates as a shunt  egulator,  it can be used as either a positive or negative stage reference.

1431B is offered in 3-pin TO-92 and SOT-23 package.