A single-inductor dual-output switching converter with average current mode control

被引：1
|
作者：
Zhu Xiaoting [1 ]
Hong Zhiliang [1 ]
Killat, D. [1 ,2 ]
机构：
[1] Fudan Univ, State Key Lab ASIC & Syst, Shanghai 201203, Peoples R China
[2] Dialog Semicond, Kirchheim unter Teck, Germany
来源：
JOURNAL OF SEMICONDUCTORS | 2009年 / 30卷 / 09期
关键词：
DC-DC converter; single-inductor multiple-output; average current mode control; on-chip current detection;
D O I：
10.1088/1674-4926/30/9/095012
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
An integrated single-inductor dual-output (SIDO) switching DC DC converter is presented. The outputs are specified with 1.2 V /400 mA and 1.8 V /200 mA. A decoupling small signal model is proposed to analyze the multi-loop system and to design the on-chip compensators. An average current control mode is introduced with lossless, continuous current detection. The converter has been fabricated in a 0.25 mu m 2P4M CMOS process. The power efficiency is 86% at a total output power of 840 mW while the output ripples are about 40 mV at an oscillator frequency of 600 kHz.
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收藏
页数：6
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