STMicroelectronics TL431IDT Adjustable Precision Shunt Regulator

The TL431IDT from STMicroelectronics is a highly versatile adjustable precision shunt regulator that offers a solution for a wide range of voltage regulation tasks in electronic systems. As a three-terminal programmable shunt regulator diode, this IC operates in a manner similar to that of a Zener diode, but with the added advantage of an adjustable output voltage and improved precision.

With an output voltage that can be set to any value between 2.495 V and 36 V using two external resistors, the TL431IDT provides excellent flexibility for designers. This adjustable output, coupled with a guaranteed thermal stability over applicable temperature ranges, makes the device suitable for a variety of applications, including precision voltage regulation, voltage monitoring, and as a stand-alone voltage reference.

The TL431IDT boasts a typical dynamic output impedance of 0.2 ohms, a feature that contributes to its stable and reliable performance. A low output noise voltage and a fast turn-on response further enhance its suitability for high-performance designs. The device's capability to source up to 100 mA of output current allows it to drive heavier loads when necessary.

STMicroelectronics has packaged the TL431IDT in an industry-standard surface-mount TO-252 package, which is not only space-efficient but also amenable to automated assembly processes. This makes it a practical choice for modern, compact electronic devices where space is at a premium.

The TL431IDT is characterized for operation from -40°C to +125°C, ensuring reliable performance across a broad range of environmental conditions. Its robust design and construction meet the high standards of quality and reliability that STMicroelectronics is known for, making it a trusted choice for both commercial and industrial applications.

Whether you're designing power supplies, battery chargers, or simply require a precise voltage reference, the TL431IDT adjustable precision shunt regulator is a component that offers the performance and versatility needed to meet your design challenges.