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

A single-inductor dual-output switching converter with average current mode control
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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 0.25μm 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. 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 0.25μm 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.
作者 许伟伟 朱潇挺 洪志良 Killat D
机构地区 State Key Laboratory of ASIC and System Dialog Semiconductor
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2009年第9期111-116,共6页 半导体学报（英文版）
关键词 DC-DC converter single-inductor multiple-output average current mode control on-chip current detection DC-DC converter single-inductor multiple-output average current mode control on-chip current detection
分类号 TM921.5 [电气工程—电力电子与电力传动]
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参考文献11

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Journal of Semiconductors
2009年 第9期

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