New Micropower buck regulator improves battery life and reduces standby power

Semtech Corporation, a developer of analogue and mixed-signal semiconductors, has launched the first device in its platform of high-efficiency micropower step-down switching regulators. The SC4530 is a 30V micropower buck regulator that provides light-load efficiency greater than 80% at 650µA output and an ultra-small, 50mm2 solution footprint. This combination of features addresses the needs for long battery life, small size and design simplicity in notebook PCs and set-top box applications.

“The new SC4530 provides longer standby times in both battery-powered and line-powered consumer electronics by providing designers a high efficiency power solution for light-load conditions,” said Andy Khayat, Senior Business Unit Director for Consumer Power in Semtech’s Power Management Group. “This micropower buck regulator increases light-load efficiency up to 10 percent giving Semtech’s customers another means to achieve their power efficiency goals.”

The SC4530 operates from a 3V to 30V supply and provides an adjustable output voltage with output current up to 300mA. The very-wide input voltage range enables the device to operate from a variety of input sources, including single- or multi-cell batteries, internal system rails and wall adapters.

A web-based design evaluation and simulation model is available for the SC4530.

www.semtech.com

 

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