Beijing Smartchip Microelectronics Technology Comp

Beijing Wangmi Online Network Co., Ltd.

Lixin Yang

Dejian Li

Ye Tian

Haifeng Zhang

Yi Hu

Xiaoke Tang

Jiali Hou

Dongyan Zhao

Yidong Yuan

Lang Tan

Yongwang Ma

Xiaoman Wang

An ultra-low power consumption power supply structure, comprising: a first LDO circuit, a second LDO circuit, a first Bandgap module, a second Bandgap module and a switching circuit, wherein the first LDO circuit is used for providing an LDO output voltage when an SOC chip is in a normal operating mode, and the second LDO circuit is used for providing an LDO output voltage when the SOC chip is in an ultra-low power consumption mode; the first Bandgap module is used for providing, based on a main power supply voltage, a first reference voltage for the first LDO circuit at the time of power-on startup, and the second Bandgap module is used for providing a second reference voltage for the second LDO circuit after power-on startup is completed; and the switching circuit is used for switching the mode in which the first reference voltage is output by the first Bandgap module at the time of power-on startup to the mode in which the second reference voltage is output by the second Bandgap module after power-on startup is completed.

Ultra-low power consumption power supply structure

Growing community of inventors

Beijing, China

Lixin Yang