ON Semiconductor TL431ILPG Adjustable Precision Shunt Regulator

The TL431ILPG from ON Semiconductor is a versatile, three-terminal, programmable shunt regulator diode. This adjustable precision shunt regulator is a staple in many electronic applications due to its ease of use and high level of performance. The device is designed to maintain high stability and accuracy over a wide range of operating temperatures, from -40°C to +85°C, making it suitable for a diverse array of applications.

With a reference voltage range of 2.495 V to 36 V and typical 0.5% tolerance at 25°C, the TL431ILPG provides excellent flexibility for designers. This allows the device to be used in numerous voltage regulation scenarios by adjusting the voltage reference via external resistors. The output voltage can be set to any value within the reference voltage range, depending on the resistive divider network connected to the reference pin.

The TL431ILPG is capable of sourcing up to 100 mA of current, and its low output noise, along with its superior reference voltage stability, ensures reliable operation in critical applications. It is commonly employed in power supplies, battery chargers, voltage monitors, and as a replacement for Zener diodes in many applications where an improvement in Zener performance is desired.

ON Semiconductor has packaged the TL431ILPG in a TO-92 package, which is widely accepted for commercial and industrial surface mount applications. The compact form factor of this package allows for efficient use of board space in the design of compact electronic circuits. Furthermore, the device features a typical dynamic output impedance of 0.22 ohms, providing good transient response and regulation capabilities.

Overall, the TL431ILPG is an excellent choice for designers looking for a reliable and flexible solution for voltage regulation needs. Its ease of use, combined with the quality and support from ON Semiconductor, ensures that it can meet the needs of a wide range of electronic designs.