SMPS controller features synchronous rectification

Maxim Integrated Products has introduced a dual step-down, interleaved fixed-frequency switch-mode power-supply (SMPS) controller with synchronous rectification—the MAX8775. The device's configuration is flexible, allowing it to operate as two independent single-phase regulators (separate mode) or as one high-current two-phase regulator (combined mode). The MAX8775 is suitable for GPU cores and I/O power generation in battery-powered systems.

Configured in separate mode, the MAX8775 powers two dynamic voltage rails, one for the GPU core and the other for the I/O power rail. Configured in combined mode, the MAX8775 functions as a two-phase, high-current, single-output GPU core regulator to power the high-performance GPU engines in gaming machines and media centre notebooks.

The MAX8775 is available in a 32-pin TQFN package and is specified over the extended-industrial temperature range (-40°C to 85°C). Prices start at $3.45 (1,000-up, FOB USA).