Power supply module and power supply device

  • US 10,602,614 B2
  • Filed: 09/27/2018
  • Issued: 03/24/2020
  • Est. Priority Date: 04/21/2016
  • Status: Active Grant
First Claim
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1. A power supply module that includes a first outer surface and a second outer surface that is adjacent to the first outer surface and perpendicular or substantially perpendicular to the first outer surface, the power supply module comprising:

  • a substrate that includes a first surface, a second surface that is opposite to the first surface and perpendicular or substantially perpendicular to the first outer surface, and a side surface;

    a plurality of electronic components that are mounted on the first surface and the second surface;

    a first resin member that is provided on the first surface and that seals the plurality of electronic components mounted on the first surface;

    a second resin member that is provided on the second surface and that seals the plurality of electronic components mounted on the second surface;

    a terminal electrode that is exposed at least at the first outer surface; and

    an inductor that is mounted on the first surface or the second surface and sealed by the first resin member or the second resin member;

    whereinin the substrate, the first surface is perpendicular or substantially perpendicular to the first outer surface;

    the first outer surface extends at least across the side surface of the substrate and the first resin member;

    an area of the first outer surface is smaller than an area of the second outer surface;

    the first outer surface further includes the second resin member;

    at least one of the plurality of electronic components is disposed at positions at which the at least one of the plurality of electronic components overlap the inductor when the first surface or the second surface is viewed in plan view;

    the plurality of electronic components include an input capacitor that is connected to an input portion, an output capacitor that is connected to an output portion, and a switching element that is connected between the inductor and the input capacitor or between the inductor and the output capacitor and that switches on and off a current that flows through the inductor;

    the input capacitor and the output capacitor are mounted on one of the first surface and the second surface; and

    the switching element is mounted on another one of the first surface and the second surface different from the one of the first surface and the second surface that the input capacitor and the output capacitor are mounted on.

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