Overview of TL431QDCKR

The TL431QDCKR from Texas Instruments is a highly versatile three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive, commercial, and military temperature ranges. This precision voltage regulator is commonly used in a wide range of applications including power supplies, battery chargers, and voltage monitors, thanks to its ability to offer a reliable reference voltage with low output noise.

Key Features

• Adjustable Output Voltage: The device offers an output voltage range from 2.495 V to 36 V, which can be set using two external resistors.
• Low Output Noise: It is designed to maintain low noise levels, making it suitable for sensitive electronics.
• High Precision: The TL431QDCKR features a typical output voltage tolerance of 0.5%, ensuring high accuracy in voltage regulation.
• Temperature Compensated: The voltage reference is temperature compensated, which allows it to operate consistently across a wide temperature range.
• Low Dynamic Output Impedance: The dynamic output impedance is typically 0.22 Ω, contributing to stable load regulation characteristics.

Package and Quality

The TL431QDCKR comes in a compact SC-70 (SOT-323) surface-mount package, which is ideal for space-constrained applications. The device is also characterized for operation from −40°C to 125°C, ensuring reliability across various environmental conditions. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting stringent industry standards for performance and durability.

Applications

This versatile shunt regulator is suitable for a myriad of applications, including:

• Adjustable power supplies
• Switching power supplies
• Linear power supplies
• Instrumentation
• Portable and battery-powered electronics
• Automotive systems

In summary, the TL431QDCKR from Texas Instruments is a reliable and precise voltage reference that offers design flexibility, making it an essential component for a broad range of electronic circuits and products.