Favorable basic cells for hybrid DC–DC converters

With the surging demands for extremely high current at sub-1 V supply voltage level in high performance computing and autonomous driving,high density power delivery becomes one of the critical limiting factors for system integration.48 V power bus system is emerging for these high current applications to reduce the IR losses on the power delivery networks.Thus,there is a wide voltage gap between the power bus and the digital supply rails at the point-of-load(PoL),calling for novel power conversion topologies and system architectures.Although the performances of the integrated power circuits heavily depend on both the quality factor of passive components and the figure-of-merit(FoM)of active devices,a smart circuit designer should also find an optimum way to guide the currents and to deliver the power.