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An adaptive step-up/down DC-DC converter with tri-band tri-mode digital control is presented. Three control methods jointly and seamlessly optimize the converterpsilas operation performances at the start-up state, steady state and dynamic voltage/load transient state. A compact automatic substrate switching circuit is used for adaptive substrate biasing, consuming only 88-muW power. A low-power self-biased...
Motivated by emerging self-sustained low-power applications, this paper presents a new integrated power supply solution with reconfigurable step-up/down switched-capacitor power stage and adaptive gain/pulse control, featuring variable gain ratios, low ripples and fast transient responses. The converter was designed with TSMC 0.35-mum digital CMOS N-well process. With an input voltage ranging from...
An integrated switched-capacitor (SC) DC-DC converter with a digital interleaving regulation scheme is presented. By interleaving the newly-structured charge pump (CP) sub-cells in multiple phases, the input current ripple and output voltage ripple of the converter are reduced significantly. The converter exhibits excellent robustness, even when one CP sub-cell fails to operate due to unexpected device...
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