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EChO power management unit with reconfigurable switched-capacitor converter in 65 nm CMOS

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3 Author(s)
Alioto, M. ; Univ. of Michigan, Ann Arbor, MI, USA ; Consoli, E. ; Rabaey, J.

In this paper, a novel reconfigurable power management unit (PMU) is introduced. Its reconfigurable switched capacitor array permits for the first time to reduce the energy cost associated with sleep-to-active and active-to sleep transitions by 64%. This energy reduction comes at small area overhead (lower than 1%) and no penalty in active mode. Measurements on a 65-nm testchip comprising of PMU with integrated logic and memory show that energy savings enabled by our technique are in the order of 30% in practical cases.

Published in:

Custom Integrated Circuits Conference (CICC), 2012 IEEE

Date of Conference:

9-12 Sept. 2012