公开(公告)号：US10033275B2

公开(公告)日：2018-07-24

申请号：US15013426

申请日：2016-02-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuya Ishii ,  Atsushi Kitagawa ,  Tadata Hatanaka

IPC: H02M3/155 ,  H02M3/158 ,  H01L25/00 ,  H01L25/04 ,  H01L25/18 ,  H01L23/00 ,  H02M7/00

Abstract: A DC-DC converter module includes a module substrate on which switching transistors and a controller IC chip are mounted, stud terminals mounted on a surface of the module substrate, and an inductor attached to the stud terminals such that the inductor faces the module substrate. In a plan view, the switching transistors are arranged within an area where the inductor overlaps the module substrate, whereas at least a portion of the controller IC chip is arranged outside the area.