TPS76350QDBVRQ1

Product Overview

The TPS76350QDBVRQ1 from Texas Instruments is a single-output, fixed positive 5 V linear voltage regulator for surface-mount designs. It accepts an input voltage up to 10 V and provides up to 150 mA at the 5 V output. The dropout voltage is specified as 0.3 V at 150 mA, allowing low input-to-output headroom in compact boards. The regulator includes an enable control and protection against over current, over temperature, and reverse polarity. It operates from -40°C to 125°C and is AEC-Q100 qualified for automotive grade use.

Key Features

• Single positive fixed 5 V output with 150 mA output current
• Maximum input voltage of 10 V and dropout voltage of 0.3 V at 150 mA
• Enable control feature for regulator activation and deactivation
• Protection features include over current, over temperature, and reverse polarity
• Quiescent current of 100 µA and maximum supply current of 140 µA
• PSRR of 60 dB at 1 kHz
• Operating temperature range from -40°C to 125°C
• AEC-Q100 qualified automotive grade
• Surface-mount SOT-23-5 package, also identified as SC-74A or SOT-753

Applications

• 5 V rail regulation for automotive sensor modules
• Fixed 5 V supply for low-current microcontroller or interface ICs
• Enable-controlled standby rails in embedded control systems
• Noise-sensitive analog or communication circuits requiring 60 dB PSRR at 1 kHz

Design & Procurement Notes

For designs using this regulator, confirm that the available input voltage does not exceed 10 V and that sufficient headroom remains for the 0.3 V dropout specification at the intended load current. The enable control allows system-level switching of the output, so the control signal state should be managed according to the regulator's required operating conditions. The over current, over temperature, and reverse polarity protections support fault resilience, but they do not replace input filtering, layout, or thermal design. The SOT-23-5 package and -40°C to 125°C range should be checked against board space and environmental requirements. AEC-Q100 automotive grade qualification is relevant when the design targets automotive electronics.