Two-stage buck regulators power low output voltage core applications

MURATA PE24109 and PE24110 are low-profile and ultra-high efficiency step-down dc-dc converter solutions. The PE24109 can deliver 10A per stage output current from an input voltage range from 3.0V to 3.6V, and its output voltage is selected with external feedback resistors to be adjusted between 0.5 and 1.0V. The PE24110 delivers 12A per stage output current from an input voltage range from 3.0V to 3.6V, and its output voltage is selected with external feedback resistors to be adjusted between 0.35 and 0.6V. Both solutions are based on firm’s advanced two-stage architecture and consist of a two-phase interleaved charge pump followed by an interleaved buck regulator stage. This power system greatly reduces the dependency on inductance for high efficiency solutions in small- footprint and height-constrained applications. This makes them the ideal step-down DC-DC converter solutions for low-profile point-of-load (POL) regulators, high-density, optical transceiver modules, core supplies, ASICs, and FGPAs.

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