Power switch for transmitting a power source of low voltage between regular mode and deep-power-down mode

摘要

A low-voltage power switch includes a gate-controlled circuit and a switch. The gate-controlled circuit generates a control voltage lower than the voltage of ground according to a control signal. The switch includes a first end, a second end, and a control end. The first end of the switch is coupled to a power supply of a low voltage, the control end of the switch is coupled to the gate-controlled circuit for receiving the gate-controlled signal, and the second end of the switch couples the first end of the switch when the switch receives the gate-controlled signal for outputting the power supply of the low voltage.