Diodes Incorporated TLV431AFTA: Precision Low-Voltage Shunt Regulator

The TLV431AFTA from Diodes Incorporated is a precision low-voltage shunt regulator offering excellent stability and low dynamic impedance. This three-terminal adjustable shunt regulator is typically used in power supplies and numerous applications where voltage calibration and temperature compensation are essential. With its high accuracy and easy adjustability, the TLV431AFTA is a versatile component for designers looking to maintain a stable voltage in their circuits.

Key Features:

• Adjustable Output Voltage: The TLV431AFTA can be programmed from V<sub>REF to 18V when referenced to the anode.
• Low Voltage Operation: It has a reference voltage of 1.24V, allowing for operation at low voltages.
• Low Dynamic Output Impedance: With a typical output impedance of 0.22 ohms, the device provides stable reverse current operation.
• Temperature Compensated: This shunt regulator is temperature compensated for the entire temperature range, ensuring reliable performance under varying conditions.
• Low Output Noise: It offers low output noise, which is crucial for sensitive electronics where noise can affect performance.
• Surface-Mount Package: The small surface-mount SOT-23 package is ideal for space-constrained applications.

Applications:

• Power Supply Circuits
• Voltage Monitoring
• Adjustable Voltage References
• Battery Chargers
• Switching Power Supplies
• Consumer Electronics

The TLV431AFTA's ability to operate with a low headroom above the regulated voltage makes it particularly suitable for low-voltage applications. This feature, along with its high accuracy, ensures that the device can maintain a stable output even when input conditions change. Its low minimum cathode current requirement for regulation allows for better performance over a wider range of operating conditions.

Whether you're designing a new power supply or looking to improve an existing one, the TLV431AFTA shunt regulator is a reliable choice that offers precision and flexibility, making it a go-to component for engineers and designers alike.