A High Efficiency Dual-Mode Buck Converter IC For Portable Applications

  title={A High Efficiency Dual-Mode Buck Converter IC For Portable Applications},
  author={Wan-Rone Liou and Mei-Ling Yeh and Yueh Lung Kuo},
  journal={IEEE Transactions on Power Electronics},
This paper presents the design of a novel wide output current range dual-mode dc to dc step-down (Buck) switching regulator/converter. The converter can adaptively switch between pulsewidth modulation (PWM) and pulse-frequency modulation (PFM) both with very high conversion efficiency. Under light load condition the converter enters PFM mode. The function of closing internal idle circuits is implemented to save unnecessary switching losses. The converter can be switched to PWM mode when the… CONTINUE READING
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