TPS53311RGTT

The TPS53311RGTT from Texas Instruments is a highly integrated synchronous buck converter featuring TI's proprietary SmoothPWM™ voltage mode control. This device is optimized for 3.3-V and 5-V step-down applications where space is a premium and high performance is mandatory.

Key electrical specifications include a continuous output current of 3 A, an input voltage range from 2.9 V to 6 V, and an adjustable output voltage ranging from 0.6 V to 0.84 V times VIN. It operates at a nominal switching frequency of 1.1 MHz, contributing to its high efficiency of up to 95.5%. The regulator also features low RDS(on) for its integrated MOSFETs, with typical values of 24 mΩ at 3.3-V input and 19 mΩ at 5-V input.

Designed for ease of use and robust operation, the TPS53311RGTT includes features such as internal softstart, output soft discharge, power good indication, and comprehensive protection against overcurrent, overvoltage, and over-temperature conditions. It supports all MLCC output capacitors and offers skip mode for light load control, optimizing efficiency across various load conditions.

The component is housed in a compact 3 mm × 3 mm, 16-pin VQFN package with an exposed pad for enhanced thermal performance. The mounting type is surface mount, suitable for automated assembly processes.