Diodes Incorporated TL431ASA-7 Adjustable Precision Shunt Regulator

The TL431ASA-7 from Diodes Incorporated is a three-terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 100mA. This versatile IC is a staple in many power supply and voltage regulation applications due to its ease of use and high accuracy.

With an adjustable output voltage range from 2.495V to 36V, the TL431ASA-7 provides the flexibility needed to accommodate various design requirements. This is achieved by connecting a pair of external resistors that set the output voltage to the desired level, giving designers the ability to tailor the output to their specific needs.

The shunt regulator features a typical output impedance of 0.2 ohms, ensuring stable voltage regulation even under dynamic load conditions. The low dynamic output impedance, combined with a fast turn-on response, makes the TL431ASA-7 an excellent choice for voltage reference or error amplifier applications within feedback loops of switching power supplies.

Temperature stability is one of the key attributes of the TL431ASA-7, with a typical drift of only 50ppm/°C, ensuring reliable performance over a wide temperature range from -40°C to +85°C. This makes the device suitable for use in environments with varying temperature conditions.

The TL431ASA-7 is provided in an SOT-23 package, which is ideal for space-constrained applications. Its compact footprint allows for efficient use of PCB real estate, which is especially valuable in portable and miniaturized electronic devices.

For safety-critical applications, the TL431ASA-7 includes built-in over-temperature shutdown and over-current protection, contributing to the overall reliability and robustness of the end application. This, combined with the high precision and stability, makes the TL431ASA-7 a trusted choice for power management solutions in consumer electronics, industrial controls, and telecommunications equipment.

Overall, the TL431ASA-7 shunt regulator from Diodes Incorporated is a highly reliable and versatile component that can be integrated into a wide range of electronic circuits and systems to provide precise voltage control and regulation.