STMicroelectronics TL431IL3T Adjustable Precision Shunt Regulator

The TL431IL3T is a versatile and highly precise shunt voltage regulator designed by STMicroelectronics. This three-terminal adjustable regulator offers excellent temperature stability and output voltage accuracy, making it a suitable choice for a wide range of applications, from power supplies to voltage reference in precision circuits.

This regulator features an output voltage range that can be set to any value between 2.495 V and 36 V with two external resistors. This flexibility allows designers to tailor the output to meet specific requirements, providing a custom voltage reference with ease. The TL431IL3T guarantees a typical output impedance of 0.2 ohms, contributing to its stable operation under varying load conditions.

With a guaranteed temperature stability over the entire temperature range of operation, the TL431IL3T ensures reliable performance in environments where temperatures may fluctuate. The device also offers a typical dynamic output impedance and a fast turn-on response, which are critical features for applications requiring quick adjustments to changes in load or environmental conditions.

The TL431IL3T is encapsulated in a small SOT-23 package, making it ideal for space-constrained applications. This compact form factor, combined with its low output noise and excellent transient response, makes it an excellent choice for high-density circuit designs where performance and space efficiency are paramount.

Additionally, the device boasts a low operational cathode current that enhances its energy efficiency, an important consideration for battery-operated devices. With a maximum operational current of 100 mA, the TL431IL3T can handle a wide range of loads while maintaining stability and precision.

STMicroelectronics has designed the TL431IL3T with safety in mind, incorporating features such as over-temperature shutdown and short-circuit protection. These features ensure that the device not only performs reliably but also contributes to the overall safety and longevity of the end application.

In summary, the TL431IL3T from STMicroelectronics is a highly reliable and precise adjustable shunt regulator that offers designers the flexibility to meet various voltage reference requirements with a single component. Its combination of precision, stability, and compact packaging makes it an excellent choice for a multitude of electronic applications.