STMicroelectronics TL431IN Precision Programmable Reference

The TL431IN from STMicroelectronics is a versatile and precision programmable voltage reference that serves a wide array of applications. This three-terminal adjustable shunt regulator is well-suited for use in power supplies, battery chargers, and voltage monitoring systems due to its high stability and low output noise.

With an output voltage range that can be set to any value between 2.495 V and 36 V using two external resistors, the TL431IN provides excellent design flexibility. This feature allows designers to tailor the output voltage to their specific needs, making the device ideal for precision voltage regulation tasks.

One of the key attributes of the TL431IN is its high accuracy. The reference voltage tolerance is typically ±0.5% at 25°C, which ensures reliable performance in critical applications where voltage precision is paramount. Additionally, the low dynamic output impedance, combined with a fast turn-on response, provides excellent transient response characteristics, which is crucial for maintaining voltage stability under varying load conditions.

The TL431IN is also characterized by its wide operating temperature range of -40°C to +105°C, which means it can reliably function in a range of environmental conditions. This robustness makes it a suitable choice for industrial and automotive applications where temperature extremes are common.

Available in a standard TO-92 package, the TL431IN is easy to integrate into a variety of circuit designs. Its lead-free and RoHS-compliant construction aligns with current environmental standards, reducing the environmental impact of electronic components.

Whether it's used as a precision voltage reference, an adjustable zener, or as part of a feedback circuit, the TL431IN from STMicroelectronics stands out as a reliable and flexible solution for designers looking to enhance the performance of their power management systems.

For further details, including datasheets and application notes, interested parties can visit the STMicroelectronics website or contact their local sales representative.