| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit device and electronic equipment and the like that can suppress generation of malfunctions in voltage conversion of a power supply voltage.SOLUTION: A circuit device includes: a voltage detection circuit (a battery voltage level detection circuit 190) that performs voltage detection of a power supply voltage VCC from a charge storage part 400; and a DC-DC conversion circuit 120 that performs voltage conversion of the power supply voltage VCC on the basis of a voltage detection result of the voltage detection circuit to generate a conversion voltage VC2. The voltage detection circuit performs a first detection operation in every first time period T1, and in a case where it is detected that the power supply voltage VCC becomes a detection voltage by the first detection operation, performs a second detection operation in every second time period T2. In a case where it is detected that the power supply voltage VCC becomes the detection voltage by the second detection operation, the DC-DC conversion circuit 120 switches a voltage conversion magnification.SELECTED DRAWING: Figure 4 |
