Description

The TL431 device is three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature
ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) an 36 V, with two external resistors .These devices have a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

Features

Adjustable Output Voltage: Vref to 36 V
Operation From −40°C to 125°C
Typical Temperature Drift (TL431B):
6 mV (C Temp)
14 mV (I Temp, Q Temp)
Low Output Noise
0.2-Ω Typical Output Impedance
Sink-Current Capability: 1 mA to 100 mA

Documents:

Datasheet