TL431A, Programmable Shunt Regulator - TO-92 Package, Adjustable Output Voltage

The TL431A is a versatile programmable shunt regulator available in a TO-92 package, offering precise control of output voltage over a wide range, from 2.495V to 36V. It is designed for applications that require adjustable voltage regulation with high accuracy, providing stable reference voltage with a dynamic output impedance of 0.2Ω typical.

With a sink current capability from 1.0mA to 100mA, the TL431A is ideal for applications such as voltage reference for switching power supplies, precision regulators, and adjustable Zener diode replacements.

This shunt regulator is temperature-compensated for operation over the full rated temperature range, ensuring reliable performance under varying environmental conditions. The TL431A features a fast turn-on response and low output noise voltage, making it suitable for high-precision applications.

Key Features :

• Adjustable Output Voltage: Programmable over a wide range from 2.495V to 36V, providing flexibility in design.
• Low Dynamic Output Impedance: 0.2Ω typical, ensuring stable operation under varying load conditions.
• Sink Current Capability: Adjustable sink current from 1.0 mA to 100 mA, making it adaptable to different power requirements.
• Temperature Compensation: Compensated for operation over full rated operating temperature range, ensuring consistent performance.
• Fast Turn-on Response: Quick response time, suitable for high-speed applications.
• Package Type: Comes in TO-92 package, ideal for compact and low-power applications.