| Citation: |
Xu Weiwei, Zhu Xiaoting, Hong Zhiliang, Killat D. A single-inductor dual-output switching converter with average current mode control[J]. Journal of Semiconductors, 2009, 30(9): 095012. doi: 10.1088/1674-4926/30/9/095012
Xu W W, Zhu X T, Hong Z L, Killat D. A single-inductor dual-output switching converter with average current mode control[J]. J. Semicond., 2009, 30(9): 095012. doi: 10.1088/1674-4926/30/9/095012.
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A single-inductor dual-output switching converter with average current mode control
doi: 10.1088/1674-4926/30/9/095012
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Abstract
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 μm 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.-
Keywords:
- DC–DC converter
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