A Single-Inductor Dual-Output Buck Converter with Self-Adapted PCCM Method

被引：4
|
作者：
Yang Yang [1 ]
Sun Liang [1 ]
Wu Xiaobo [1 ]
机构：
[1] Zhejiang Univ, Inst VLSI, Hangzhou 310003, Zhejiang, Peoples R China
来源：
2009 IEEE INTERNATIONAL CONFERENCE OF ELECTRON DEVICES AND SOLID-STATE CIRCUITS (EDSSC 2009) | 2009年
关键词：
SIDO; PCCM; Buck;
D O I：
10.1109/EDSSC.2009.5394182
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：
A single-inductor dual-output (SIDO) buck converter controller is presented, which operates in self-adapted pseudo-continuous-conduction-mode (PCCM) with adjustable dc current levels. Freewheel switching control has been introduced to realize large load current with smaller current ripple, while cross regulation can be minimized. Furthermore, the dc current level of subconverters can be adjusted according to each load. The controller was designed and fabricated in 1.5 mu m BCD technology. The two outputs are set at 2.5V and 3.3V. And the conversion efficiency of 88% at 300mW is achieved.
引用
收藏
页码：87 / 90
页数：4
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