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SCVR-Less Dynamic V oltage-Stacking Scheme for IoT MCU Xinning Liu Member IEEE
提出动态电压堆叠方案，降低物联网MCU睡眠功耗38%
睡眠电流降低38%，ULPMark-CP分数提升23.6%
物联网MCU动态电压堆叠超低功耗睡眠模式SCVR
▸支持正常状态下的平面模式和睡眠状态下的堆叠模式动态切换
▸关闭片上SCVR以节省功耗
▸提升ULPMark-CP分数23.6%
Abstract
Limited by 4battery capacity, advanced microcon-
troller units (MCUs) for Internet of Things (IoT) applications
require ultra-low power consumption. In a conventional design,
the sleep power accounts for most of the total power consumption,
and cannot be reduced further due to the low power efficiency
of dc–dc converters at the load current ∼100 nA. Voltage
stacking has been proposed to address power efficiency. However,
prior voltage-stacking architectures could not realize dynamic
switching betw