The TL431AIDBZR is a three-terminal adjustable precision shunt regulator from Texas Instruments, designed to provide a stable voltage reference with high accuracy. Encased in a compact SOT-23-3 package, it features a guaranteed temperature coefficient over the operating range and can be used in a wide variety of applications requiring precise voltage regulation. It operates by sinking current from its cathode to anode terminal, maintaining a constant voltage at the reference pin relative to the anode.

Key Features

This device offers an adjustable output voltage range of 2.5V to 36V by using two external resistors. With a typical dynamic impedance of 0.2Ω, it ensures stability and low noise operation. The TL431AIDBZR boasts a sharp turn-on characteristic and operates within a temperature range from -40°C to +85°C. Its maximum cathode current capability reaches up to 100mA, providing flexibility for various circuit designs. High reliability is ensured through rigorous testing and compliance with industrial standards.

Applications

Ideal for use in switching power supplies, linear regulators, and battery management systems, the TL431AIDBZR serves as a critical component for voltage monitoring and regulation. It's also extensively utilized in precision measurement equipment, where accurate voltage references are crucial. Due to its small footprint and efficiency, it finds applications in portable devices and space-constrained circuits.

Summary

The TL431AIDBZR stands out for its precision, versatility, and efficiency in delivering reliable voltage regulation across diverse applications. Its ability to operate under a wide range of conditions while maintaining accuracy makes it an essential part for both analog and digital circuits, especially where space and performance are critical factors.