TLV431AQDBVRQ1 – TEXAS INSTRUMENTS

The TLV431AQDBVRQ1 is a single, low-power, precision shunt regulator from Texas Instruments, packaged in a SOT-23-5 surface-mount format. It operates as a 2.5V programmable voltage reference with a typical output voltage accuracy of ±0.5% over its operating temperature range. Its low input bias current (typically 50nA) and low output noise (typically 8µVrms) make it suitable for high-precision applications. The device features a 1.24V internal bandgap reference, allowing for a wide adjustable output voltage range from 2.5V to 36V, making it versatile in various applications. Unlike some competitors, its low quiescent current (typically 500µA) contributes to improved power efficiency, especially in battery-powered systems._x000D_
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The TLV431AQDBVRQ1 excels in precision voltage referencing, current limiting, and overvoltage protection circuits. Its high accuracy and stability are advantageous in applications requiring tight voltage regulation, such as high-precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). The low noise characteristics also make it a suitable choice for sensitive instrumentation and measurement systems. Its compact SOT-23-5 package facilitates high-density PCB designs. Designers should note its relatively low current handling capability compared to higher-power shunt regulators; it’s optimized for precision rather than high current applications.