Samsung Electronics Co., Ltd.

Hyongmin Lee

Sangho Kim

Seki Kim

Yongjin Lee

Dongha Lee

Byeongbae Lee

Sungyong Lee

Jaegon Lee

Joonseok Kim

Jongpil Lee

Yohan Kwon

Iksu Lee

Yooseok Shon

Dooseok Yoon

Wookyeong Jeong

A system-on-chip according to an embodiment includes a core including a header switch circuit configured to transmit a power supply voltage applied to a first power rail as a supply voltage to a second power rail and a logic circuit configured to operate based on the supply voltage from the second power rail, and a low-dropout (LDO) regulator configured to regulate a magnitude of first current output to the second power rail based on a change in the supply voltage, wherein the LDO regulator is further configured to control on/off of a plurality of first header switches included in the header switch circuit based on an amount of the change in the supply voltage.

System-on-chip including low-dropout regulator

A system on chip includes a core configured to maintain a clock gating state; a plurality of header switch circuits configured to deliver a supply voltage, which is reduced from an external supply voltage, to the core in response to a plurality of control signals; and a voltage regulator configured to monitor the supply voltage, change logic levels of the plurality of control signals according to a difference level corresponding to a difference between the supply voltage and a preset target voltage, and output the plurality of control signals of which the logic levels have been changed to the plurality of header switch circuits.

System on chip for supplying a voltage

Growing community of inventors

Seoul, South Korea

Hyongmin Lee