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Fully integrated fast response Switched-Capacitor DC-DC converter using reconfigurable interleaving

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2 Author(s)
Salem, L. ; Nano-Electron. Integrated Syst. Center (NISC), Northwestern Univ., Cairo, Egypt ; Ismail, Y.

A novel double-bound hysteretic regulation scheme to control multi-phase interleaved Switched-Capacitor DC-DC converters is presented. The control scheme adjusts the number of interleaved phases with the SC converter's switching frequency to significantly reduce the required operating frequency of the control comparator, enabling the practical application of hysteretic control with large number of interleaved phases. A 16-phase 2:1 SC converter is designed in 65-nm TSMC low-power CMOS process using the proposed technique. The converter with the new hysteretic control achieves fast dynamic response under fast varying load currents.

Published in:
Energy Aware Computing (ICEAC), 2010 International Conference on

Date of Conference: 16-18 Dec. 2010

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