TPS79301DBVRQ1

The Texas Instruments TPS79301DBVRQ1 is an automotive-grade adjustable low-dropout (LDO) linear voltage regulator designed for noise-sensitive applications in vehicle electronics. It operates with an input voltage range of 2.7 V to 5.5 V and can provide an output current of up to 200 mA. The output voltage is adjustable from approximately 1.22 V to 5.5 V via an external resistor divider.

This regulator is characterized by its low noise and high Power Supply Rejection Ratio (PSRR), making it suitable for clean secondary power rails after DC/DC converters or for powering sensitive analog and digital circuits. The device features a very low dropout voltage, typically 112 mV at full load, which helps improve overall system efficiency and thermal performance.

The TPS79301DBVRQ1 is supplied in a compact SOT-23-5 (DBV) package, suitable for surface mounting. Its automotive qualification (AEC-Q100) ensures reliability for in-vehicle applications. Typical applications include power rails for automotive head units, infotainment systems, hybrid instrument clusters, telematics control units, and embedded sensor modules.

Key electrical parameters include an input voltage range of 2.7 V to 5.5 V, an adjustable output voltage from 1.22 V to 5.5 V, and an output current capability of up to 200 mA. The device also boasts low noise, high PSRR, and fast start-up times, essential for demanding automotive electronic systems.