4A synchronous dc/dc regulators with integrated mosfets

Maxim Integrated Products has introduced the MAX15050/MAX15051, low voltage (2.9 to 5.5V), 4A, synchronous dc/dc regulators in a 2 x 2mm wafer level package. The regulators integrate mosfets to simplify design, minimise emi, and save board space.

Operation from a fixed 1MHz switching frequency further reduces total solution size, allowing all ceramic capacitor designs. The devices are said to offer peak efficiencies up to 96% and minimise power losses in applications ranging from portable devices to networking equipment. The MAX15050 employs a pulse skip mode to improve light load efficiency, which the company says makes it ideal for applications such as notebooks and single cell portable devices. The MAX15051 operates with a forced PWM mode, allowing it to be used in telecom, networking, and base-station applications.