ON Semiconductor TL431ACLPRAG Adjustable Precision Shunt Regulator

The TL431ACLPRAG from ON Semiconductor is a versatile, three-terminal, adjustable shunt regulator with a guaranteed thermal stability over a full operation range. This precision regulator features a typical output impedance of 0.2 ohms, a specified thermal stability over applicable automotive, commercial, and military temperature ranges, and the capability to source up to 100mA of sink current. With a voltage reference accuracy at 25°C of ±2.0% and adjustable output voltage from 2.495V to 36V, the TL431ACLPRAG is an excellent choice for a wide range of voltage regulation applications.

Designed to be highly flexible, this device can be used in numerous circuit configurations, including a basic shunt regulator, a series pass regulator, a voltage reference, or as an error amplifier for switched-mode power supplies. Its sharp turn-on characteristics make it an excellent replacement for zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

The TL431ACLPRAG is provided in a TO-92 package, which is ideal for space-constrained applications. The compact form factor ensures that it can be easily integrated into a variety of designs without consuming excessive board space. It is also available in surface-mount packages and is commonly used in consumer electronics, industrial hardware, and automotive systems where precision voltage regulation is critical.

Key features of the TL431ACLPRAG include:

• Programmable Output Voltage to 36V
• Low Dynamic Output Impedance: 0.2Ω Typical
• Sink Current Capability of 1mA to 100mA
• Equivalent Full-Range Temperature Coefficient of 50ppm/°C Typical
• Temperature Compensated for Operation over the Full Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response

With its high level of performance and reliability, the TL431ACLPRAG shunt regulator is a solid choice for designers and engineers looking to enhance the stability and accuracy of their power supply solutions. Whether it's used in simple or complex circuits, the TL431ACLPRAG delivers precise voltage control and regulation, making it an invaluable component in electronic systems.