The TL431CL3T from STMicroelectronics is a three-terminal adjustable shunt regulator with a guaranteed thermal stability over applicable temperature ranges. This versatile device acts as a precision voltage reference, an adjustable zener, or a comparator with an output driver. With its high accuracy and stability, the TL431CL3T is commonly used in numerous electronic applications, including power supplies, battery chargers, and voltage monitoring systems.

Key Features

• Adjustable Output Voltage: This shunt regulator offers an output voltage range from 2.495 V to 36 V, which can be set with two external resistors.
• Low Dynamic Output Impedance: The TL431CL3T features a typical dynamic output impedance of 0.2 ohms, providing stable reverse current operation.
• Temperature Compensated: The device is temperature compensated for the full operating temperature range, ensuring reliability and performance consistency.
• High Precision: It offers excellent precision with a typical output voltage tolerance of ±0.5% at 25°C.
• Wide Operating Current Range: The adjustable shunt regulator operates with a current range from 1 mA to 100 mA, making it suitable for a wide array of applications.

Applications

The TL431CL3T is ideal for use in a variety of circuits and applications, including:

• Adjustable voltage and current references
• Switching power supply systems
• Linear power supply systems
• On-board regulation
• Charge controllers for battery-powered devices

Package and Quality

STMicroelectronics packages the TL431CL3T in a small outline transistor (SOT-23) package, which is suitable for automated surface-mount assembly processes and space-constrained applications. The device is also characterized for operation from -40°C to 125°C, ensuring functionality in a wide range of environmental conditions. STMicroelectronics is committed to high quality and reliability, and the TL431CL3T is no exception, meeting strict industry standards for performance and robustness.