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A 63 /spl mu/W-standby-power microcontroller with on-chip hybrid regulator scheme

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7 Author(s)
Hiraki, M. ; Dept. of Semicond. & Integrated Circuits, Hitachi Ltd., Tokyo, Japan ; Ito, T. ; Ashiga, K. ; Fujiwara, A.
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We present a 32-bit RISC microcontroller having an on-chip DC/DC converter. The chip standby power including the DC/DC converter is reduced to 63 /spl mu/W with a new hybrid regulator scheme in which the microcontroller selects a switching regulator in active mode and a series regulator in standby mode. The achieved standby power corresponds to only about 1% the standby power with a conventional scheme which always uses a switching regulator.

Published in:

VLSI Circuits, 2001. Digest of Technical Papers. 2001 Symposium on

Date of Conference:

14-16 June 2001