TL431IL3T ST Voltage References

The TL431IL3T is a three-terminal programmable shunt voltage reference from STMicroelectronics in SOT-23-3 package, offering output voltage from 2.495V to 36V with 1% reference voltage tolerance (standard grade). For selection, verify cathode current from 1mA to 100mA, output impedance of 0.2Ω typical, programmable output via two external resistors, and operating temperature from -40°C to +105°C (industrial grade). Features include excellent thermal stability, low dynamic output impedance, low output noise, and AEC-Q100 qualification for automotive applications. Ideal for switch-mode power supply feedback (opto-coupler drivers), precision voltage references for ADCs/DACs, shunt regulators replacing zener diodes, overvoltage protection circuits, constant current sources/sinks, and low-cost adjustable power supplies in industrial control, battery chargers, and consumer electronics requiring up to 36V programmable output. In stock at HL Electronics – request a quote for fast delivery.