600 mA DC-DC converter

22 July 2009 Power Electronics / Power Management

Analog Devices has expanded its family of miniature switching regulators with a new 3 MHz step-down DC-DC converter optimised for high energy efficiencies in battery-powered portable devices.

The ADP2108 delivers 600 mA while operating from an input voltage as low as 2,3 V and providing excellent conversion efficiency, transient response and protection. This low operating voltage allows designers to fully use the available battery energy for 2,5 V and 3 V power loads before recharging, which can eliminate the requirement of a more expensive buck-boost regulator in some applications. During light load conditions, the device switches to a low-quiescent power-save mode for additional battery life savings.

The ADP2108 requires only three tiny external 0603 size components, which, when combined with greater than 93% conversion efficiency, enables designers to support a high load in a small area. In addition, Analog Devices offers the ADIsimPower voltage regulator design tool and other downloadable power management tools to facilitate the design of high-efficiency DC-DC conversion blocks.

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