ON Semiconductor LM431SCCM3X Adjustable Precision Zener Shunt Regulator

The LM431SCCM3X from ON Semiconductor is a versatile and precise three-terminal shunt regulator with a guaranteed temperature stability over the entire temperature range of operation. This integrated circuit is designed to serve as an easy-to-use and adjustable Zener diode in a multitude of applications that require voltage regulation. Its output voltage can be set to any value between Vref (approximately 2.5 volts) and 36 volts with two external resistors.

This device features a low dynamic output impedance, ensuring a stable and reliable operation even under varying load conditions. The low output impedance, combined with its sharp turn-on characteristics, makes the LM431SCCM3X an excellent replacement for Zener diodes in applications requiring superior temperature stability and lower voltage tolerances.

Available in a small outline transistor (SOT-23) surface-mount package, the LM431SCCM3X is suitable for automated manufacturing processes and can be used in compact circuit designs. It is commonly used in adjustable power supplies, switching power supplies, and as a voltage reference in a wide range of circuits, including those found in consumer electronics, automotive, and industrial applications.

Key features of the LM431SCCM3X include:

• Adjustable output voltage from 2.5V to 36V
• Low dynamic output impedance: 0.22 ohms typical
• Temperature-compensated for lower voltage deviation
• Fast turn-on response
• Low temperature coefficient
• Ensured 1% tolerance on reference voltage
• Available in SOT-23 package for high-density mounting

The LM431SCCM3X is a reliable and flexible solution for designers looking to implement a stable voltage reference or regulator in their system. Its ease of use, combined with its precision performance, makes it an ideal choice for a wide range of applications where voltage control and stability are crucial.

ON Semiconductor's commitment to providing high-quality and reliable components is evident in the LM431SCCM3X, making it a go-to choice for engineers and designers seeking a dependable shunt regulator for their electronic designs.