公开(公告)号：US20250105741A1

公开(公告)日：2025-03-27

申请号：US18895973

申请日：2024-09-25

Applicant: ROHM CO., LTD.

Inventor： Takuo TAKAHASHI ,  Tadashi AKAHO

IPC: H02M3/158 ,  H02M1/00

Abstract: A semiconductor integrated circuit device configured to be used as a part of a power supply device includes: an error amplifier configured to output an error voltage according to a difference between a feedback voltage, which is based on an output voltage of the power supply device, and a reference voltage; a first switching element and a second switching element that are connected in series; a first controller configured to control switching of the first switching element and the second switching element based on the error voltage; an output transistor; a second controller configured to linearly control the output transistor based on the error voltage; and a first terminal configured so that a connection node between the first switching element and the second switching element and an output terminal of the output transistor are connected to the first terminal.