Design Techniques for Fully Integrated Switched-Capacitor DC-DC Converters

被引:331
作者
Hanh-Phuc Le [1 ]
Sanders, Seth R. [1 ]
Alon, Elad [1 ]
机构
[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA
基金
美国国家科学基金会;
关键词
DC-DC conversion; design techniques; fully integrated converter; switched-capacitor; switching converter; CHARGE PUMP;
D O I
10.1109/JSSC.2011.2159054
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper describes design techniques to maximize the efficiency and power density of fully integrated switched-capacitor (SC) DC-DC converters. Circuit design methods are proposed to enable simplified gate drivers while supporting multiple topologies (and hence output voltages). These methods are verified by a proof-of-concept converter prototype implemented in 0.374 mm(2) of a 32 nm SOI process. The 32-phase interleaved converter can be configured into three topologies to support output voltages of 0.5 V-1.2 V from a 2 V input supply, and achieves 79.76% efficiency at an output power density of 0.86 W/mm(2).
引用
收藏
页码:2120 / 2131
页数:12
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