Texas Instruments TPS43331-Q1 Automotive Catalog Dual Switcher and Linear Regulators Multirail Power Supply TPS43331QDAPRQ1

The TPS43331-Q1 is a multi-rail output voltage regulator designed for automotive applications, featuring two synchronous switch mode controllers and two linear regulators. It operates within an input voltage range of 5V to 30V and is AEC-Q100 qualified, ensuring reliability in automotive environments with an operating temperature range of -40°C to +125°C. The device includes a high voltage tolerant standby linear regulator with a low quiescent current of 65 µA, making it suitable for maintaining regulated outputs under light load conditions. It supports both discrete input control and I²C serial communication for output management. Additional features include overvoltage detection, thermal shutdown protection, and a power-on reset function for the standby regulator. The TPS43331-Q1 is packaged in a thermally enhanced 38-pin HTSSOP package, facilitating efficient thermal management in compact designs.