A power module

Abstract

A power module is disclosed. The power module has a first layer, a second layer, and a magnetic assembly. The first layer has a first plurality of capacitors, a second plurality of capacitors, and a plurality of connecting pillars. The first plurality of capacitors are electrically connected in parallel between an input node and a reference ground, and the second plurality of capacitors are electrically connected in parallel between an output node and the reference ground. The second layer has a top surface and an opposite bottom surface, and its bottom surface is attached to the first layer. The second layer has a first pair of switches and a second pair of switches, wherein the first pair of switches and the second pair of switches are both electrically connected between the input node and the reference ground. The magnetic assembly is attached to the top surface of the second layer. The magnetic assembly has a first inductor and a second inductor. The first inductor is electrically connected between the output node and a first switch node formed by the first pair of switches, and the second inductor is electrically connected between the output node and a second switch node formed by the second pair of switches.

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