The BCM6123xD1E5135yzz is a high-efficiency Bus Converter, operating from a 260 to 410VDC primary bus to deliver an isolated, ratiometric secondary voltage from 32.5 to 51.3VDC. The BCM6123xD1E5135yzz offers low noise, fast transient response, and industry leading efficiency and power density. In addition, it provides an AC impedance beyond the bandwidth of most downstream regulators, allowing input capacitance normally located at the input of a PoL regulator to be located at the primary side of the BCM. With a primary to secondary K factor of 1/8, that capacitance value can be reduced by a factor of 64x, resulting in savings of board area, material and total system cost.