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SIMO DC-DC Converter with High Efficiency over Wide Load Range for IoT Devices

SIMO DC-DC Converter with High Efficiency over Wide Load Range for IoT Devices

Toshiba Electronic Devices & Storage Corporation has been developing a SIMO DC-DC converter equipped with two new technologies: (1) a maximum-on-time (MOT) control technology, and (2) a channel-consolidated multiple-switching (CCMS) control technology. Experiments on a prototype chip fabricated using 65 nm complementary metal-oxide semiconductor (CMOS) process technology have verified that its peak conversion efficiency is 86.3%, while its conversion efficiency over a wide load range from 1 µW to 50 mW is 65.3% or more. The new SIMO DC-DC converter is expected to contribute to lengthening of the operating time of IoT devices powered by coin type lithium-ion batteries.

 
*Toshiba Review (Vol.72, No.5, November 2017)

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