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

Author

Salem, Loai ; Ismail, Yehea

Author_Institution

Nano-Electron. Integrated Syst. Center (NISC), Northwestern Univ., Cairo, Egypt

fYear

2010

fDate

16-18 Dec. 2010

Firstpage

1

Lastpage

4

Abstract

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.

Keywords

CMOS integrated circuits; DC-DC power convertors; comparators (circuits); switched capacitor networks; TSMC low-power CMOS process; comparator; double-bound hysteretic regulation; fast dynamic response; fully integrated fast response switched-capacitor DC-DC converter; multi-phase interleaved switched-Capacitor DC-DC converters; reconfigurable interleaving; switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Aware Computing (ICEAC), 2010 International Conference on

Conference_Location

Cairo

Print_ISBN

978-1-4244-8273-3

Type

conf

DOI

10.1109/ICEAC.2010.5702302

Filename

5702302