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초록

Abstrack: Battery-powered mobile devices require multiple power domains to supply appropriate voltage levels to various sub-modules. This paper introduces a single-stage triple-output (SSTO) hybrid DC-DC converter that provides two regulatable half-VIN switching outputs and a 2:1 switched-capacitor (SC) output. The proposed SSTO converter offers a cost-effective solution, requiring only a single flying capacitor (CF) and six switches, while providing functionality comparable to a conventional system comprising two three-level converters and a 2: 1 SC converter (Fig. 1). Furthermore, the SSTO converter addresses the limitations commonly observed in SIMO converters [1-4]. It simultaneously delivers power to all three outputs while maintaining a constant switching frequency operation, even under significant load current (lload) imbalances. This enables high output power and low Vout ripple. In addition, reverse charge from lightly loaded or unloaded outputs is autonomously recycled to other outputs, thereby improving efficiency even under unbalanced Iload conditions.