| 摘要 |
PROBLEM TO BE SOLVED: To reduce power consumption.SOLUTION: A constant voltage generation circuit 100 includes: a differential circuit 130 provided with an input terminal 131, to which a reference potential is input, and an input terminal 132 connected to an output terminal 110, that generates and outputs a control signal on the basis of a result of comparison between the reference potential and the potential of the output terminal 110; an output control switch element 150 that is connected between a VDD power supply line 101 and the output terminal 110, and that controls the state of conduction between the VDD power supply line 101 and the output terminal 110 on the basis of the control signal which is output by the differential circuit 130; and an input control switch element 160 connected between the input terminal 131 and a supply terminal to which a fixed potential is supplied, that causes conduction between the input terminal 131 and supply terminal when the constant voltage generation circuit 100 is in a stop state, and that causes non-conduction between the input terminal 131 and supply terminal when the constant voltage generation circuit 100 is in an operation state. |
