The TL431AIDBVTE4 from Texas Instruments is a versatile and precision shunt voltage reference IC, which is commonly used in a wide range of power supply and voltage regulation applications. This three-terminal adjustable shunt regulator has a specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.495 V) and 36 V with two external resistors.

Key Features

• Adjustable Output Voltage: This device offers an adjustable output voltage from 2.495 V to 36 V, which allows for flexibility in customizing the output as per the application's requirements.
• Low Output Noise: With its low output noise, the TL431AIDBVTE4 is ideal for precision applications where a clean voltage reference is critical.
• High Accuracy: The device features a typical temperature coefficient of only 50 ppm/°C, ensuring high accuracy across a wide temperature range.
• Low Dynamic Output Impedance: The low dynamic output impedance of 0.22 Ω, combined with its ability to source up to 100 mA of current, makes it suitable for various load conditions.
• Stability: It can be used with capacitive loads, enhancing the stability and flexibility of the application.

Applications

• Power supplies
• Voltage regulators
• Adjustable precision zener shunt regulators
• Current limiters
• Battery chargers

Product Specifications

• Package: SOT-23
• Reference Voltage: 2.495 V
• Temperature Coefficient: 50 ppm/°C (typical)
• Operating Temperature Range: -40°C to 85°C

The TL431AIDBVTE4 is a highly reliable and robust device that is available in a small SOT-23 package, making it suitable for space-constrained applications. Its performance and stability make it a go-to choice for designers looking for a precision voltage reference solution.