Texas Instruments TL431BQDCKR Precision Shunt Regulator

The TL431BQDCKR from Texas Instruments is a versatile and precision shunt voltage regulator, designed for use in a wide array of applications requiring a stable and precise reference voltage. This three-terminal adjustable regulator features a low output noise, excellent thermal stability, and a high level of accuracy with a typical output voltage tolerance of 0.5%.

Key Features

• Voltage Range: The device offers an adjustable output voltage from 2.495 V to 36 V, allowing for flexibility in a variety of design configurations.
• Package Type: Supplied in a compact SC-70 (SOT-323) package, the TL431BQDCKR is ideal for space-constrained applications.
• Temperature Stability: With a wide operating temperature range from -40°C to +125°C, it is suitable for use in challenging environmental conditions.
• Low Output Noise: This regulator is designed to maintain low noise levels, making it an excellent choice for sensitive applications such as precision instrumentation.
• Reference Voltage Tolerance: At 25°C, the reference voltage tolerance is typically ±0.5%, ensuring high accuracy for your circuit designs.
• Low Dynamic Output Impedance: The dynamic output impedance is typically 0.22 Ω, contributing to stable load regulation and transient response.

Applications

The TL431BQDCKR is well-suited for a variety of applications, including:

• Adjustable voltage and current regulators
• Precision current limiters
• Battery chargers
• Switching power supplies
• Linear power supplies
• Digital voltmeters
• Operational amplifier circuitry

With its high performance and reliability, the TL431BQDCKR precision shunt regulator from Texas Instruments is an excellent choice for designers looking to enhance the accuracy and stability of their power management systems. Its small form factor, combined with industry-leading specifications, makes it a versatile component for a broad range of electronic devices.