TL431 Precision Zener Diode – Adjustable Shunt Voltage Reference

The TL431 is a programmable precision shunt regulator widely used as an adjustable Zener diode replacement in power supplies, battery chargers, SMPS circuits, voltage monitoring systems, and reference generation circuits. Unlike fixed Zener diodes, the TL431 allows precise output voltage adjustment (2.5V to 36V) using an external resistor divider. With excellent temperature stability, low dynamic impedance, and high accuracy, it is a popular component for feedback loops, regulation stages, and control applications in analog and power electronics.

People also search for: tl431 zener, programmable zener diode, tl431 shunt regulator, adjustable reference diode, zener replacement, precision voltage reference.