Texas Instruments TL431ILPE3

Description
The TL431, TL432 series are three-terminal adjustable shunt regulators 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) and 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 voltage monitoring.

Features
Operation from -40°C to 125°C
Reference voltage tolerance at 25°C
0.5% B Grade
1% A Grade
2% Standard Grade
Typical temperature drift (TL431B)
-6 mV (C Temp)
14 mV (I Temp, Q Temp)
Low output noise: 0.2-0 typical
Typical output impedance: 0.2 Ω
Sink-current capability: 1 mA to 100 mA
Adjustable output voltage: Vref to 36 V

Applications
Onboard regulation
Adjustable power supplies
Voltage monitoring
Power management
Battery chargers
Automotive applications