ON Semiconductor TL431LT1 Adjustable Precision Shunt Regulator

The TL431LT1 from ON Semiconductor is a versatile, three-terminal, adjustable precision shunt regulator that offers excellent stability and output current handling capabilities. With its adjustable output voltage range from 2.495 V to 36 V and a typical dynamic output impedance of 0.2 ohms, the TL431LT1 provides a flexible solution for voltage regulation and reference applications in a variety of electronic systems.

This precision shunt regulator is designed to be highly accurate, featuring a reference voltage tolerance of ±0.5% at 25°C and ±1% over the full operating temperature range of -40°C to +85°C. This accuracy makes the TL431LT1 an ideal choice for precision applications where voltage control is critical, such as power supplies, battery chargers, and voltage monitoring circuits.

The TL431LT1 can source up to 100 mA of output current, making it capable of handling a wide array of loads. Moreover, the device's low output noise and good temperature stability ensure a reliable performance across various environmental conditions. Its ability to operate with a small cathode current, typically 0.4 mA, allows for better power efficiency in battery-operated devices.

Featuring a typical temperature coefficient of only 50 ppm/°C, the TL431LT1 maintains its performance over a broad range of temperatures. The device also includes safety features such as overcurrent protection, ensuring robustness and reliability in the field.

ON Semiconductor's TL431LT1 is available in multiple package options, including the small surface-mount SOT-23 package, which is ideal for space-constrained applications. The simplicity of its external circuitry requirements allows for easy implementation into existing designs, minimizing time-to-market for products.

Whether you are designing power supply units, portable electronics, or need a reliable voltage reference, the TL431LT1 from ON Semiconductor provides a compact, accurate, and versatile solution that engineers can trust for their voltage regulation needs.