Product Overview: Texas Instruments TLV431BQDBZT

The TLV431BQDBZT from Texas Instruments is a precision low-voltage shunt regulator that offers excellent accuracy and stability in a small form factor. This device is part of the TLV431 series, known for its versatility in adjustable shunt regulation with a specified thermal stability over applicable automotive, commercial, and military temperature ranges.

With a reference voltage as low as 1.24V at 25°C, the TLV431BQDBZT can be adjusted to any value between Vref and 18 volts using two external resistors. These resistors set the output voltage of the shunt regulator, making it highly adaptable for a range of applications. The low dynamic output impedance of 0.22Ω, combined with a fast turn-on response, provides excellent transient response characteristics, enhancing the performance of the overall system.

The TLV431BQDBZT is designed to be compatible with older voltage reference devices, offering an improved solution for voltage regulation tasks. Its tight voltage tolerance ensures reliable operation, with an initial tolerance of ±0.5%, and it operates over a wide current range from 1mA to 100mA, making it suitable for a broad array of applications.

This device is available in a small SOT-23 package, designated as DBZ, which is ideal for space-constrained applications. The compact size does not compromise its performance, as it also features a low output noise of 0.2µV/V for a quiet and stable operation.

Applications for the TLV431BQDBZT are diverse, including but not limited to, adjustable voltage references in power supplies, notebook computers, and battery chargers. It is also used in voltage monitors and as an alternative to Zener diodes in many applications requiring an improvement in Zener performance.

Overall, the TLV431BQDBZT offers a combination of flexibility, accuracy, and reliability, making it an excellent choice for designers looking for a high-performance, adjustable shunt regulator in a compact package.