TLVH431BIPK Adjustable Precision Shunt Regulator

The TLVH431BIPK from Texas Instruments is a low-voltage three-terminal adjustable voltage reference with guaranteed thermal stability over the entire temperature range of operation. It is an ideal choice for precision voltage regulation in a wide array of applications, ranging from power supplies to battery-operated devices due to its low dynamic impedance and excellent temperature stability.

This shunt regulator can be programmed to output voltages in the range of V<sub>REF to 18V with two external resistors (R1 and R2). The V<sub>REF is 1.24V, which is the reference voltage over the full temperature range. The TLVH431BIPK is capable of operating with a minimal cathode current, making it suitable for battery-powered applications where power conservation is critical.

With a typical dynamic output impedance of 0.22Ω, the TLVH431BIPK provides stable reverse voltage throughout the entire range of operating currents. This low impedance combined with its capability to sink currents up to 70mA makes it versatile for a variety of demanding applications. The device also features a typical temperature coefficient of 50 ppm/°C, ensuring reliable performance across a wide temperature spectrum.

Available in the small outline transistor (SOT-89) package, the TLVH431BIPK is designed to save space on PCBs, making it an excellent choice for compact and integrated designs. Its robust design includes protection features such as overcurrent and overtemperature shutdown, safeguarding the device and the system it is used within from potential damage due to abnormal operating conditions.

Whether it's being used for power supply control, voltage monitoring, or as part of a precision voltage divider, the TLVH431BIPK is a flexible solution that delivers precision and reliability. Its combination of features makes it an essential component for designers who require an adjustable shunt regulator capable of maintaining stability and accuracy over a wide range of input conditions and temperatures.

For further information and detailed specifications, designers and engineers are encouraged to consult the datasheet and support documentation available from Texas Instruments.