公开(公告)号：US20220190720A1

公开(公告)日：2022-06-16

申请号：US17477813

申请日：2021-09-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongpyo PARK ,  Taehwang KONG ,  Junhyeok YANG ,  Donghoon JUNG

IPC: H02M3/158 ,  H02M1/00 ,  H02M3/157 ,  H02M1/15

Abstract: A DC-DC converter including a switching buck regulator including a first power switch connected to a first power node, a second power switch connected to a second power node, a driver configured to drive the first and second power switches, an output filtering inductor connected to a node between the first and second power switches, and an output filtering capacitor connected to the output filtering inductor, a controller configured to compensate for an output signal of the switching buck regulator in a time domain using a reference voltage, and a feed forward circuit connected between the switching buck regulator and the controller, and including a first buffer, a second buffer, an RC filter, and an adder may be provided. Accordingly, the DC-DC converter can reduce a delay of a compensation circuit, improve transient response characteristics of the switching buck regulator, and further improve the performance of the DC-DC converter.