TL431 SOT-23 Voltage Regulator IC

Description

TL431 is a versatile three-terminal adjustable shunt regulator celebrated for its exceptional temperature stability and capability to handle output currents of up to 100mA. Easily tailor the output voltage within the 2.5 to 36 volts range by choosing suitable external divider resistors.

Featuring a temperature range spanning from -40 to +125ºC, a reference voltage tolerance of 2.495V ± 1.0% at 25°C, and low output noise, the TL431 boasts a typical output impedance of 0.2Ω. It accommodates sink currents ranging from 1mA to 100mA and offers adjustable output voltage from VREF to 36V, all while dissipating a power of 330mW.

Discover the applications of TL431, from optimizing opto-coupler linearization to serving as shunt regulators, replacing zener diodes for enhanced performance, and offering variable reference voltages. With precise control over output voltage and adept current handling, the TL431 proves to be an indispensable component across a diverse spectrum of electronic circuits.

Feature

1. The TL431 operates effectively in a temperature range from -40 to +125ºC.
2. It maintains a precise reference voltage of 2.495V ± 1.0% at 25°C.
3. The device produces low output noise, ensuring a clean output signal.
4. With a typical output impedance of 0.2Ω, it maintains stability in the output signal.
5. It can handle a wide range of sink currents, from 1mA to 100mA.
6. The output voltage is adjustable, allowing for a range from VREF to 36V.
7. The TL431 has a power dissipation of 330mW, balancing performance and efficiency.

Application

1. Pin Configuration
2. Voltage Reference
3. Voltage Regulation
4. Current Limiting

Datasheet Download