Bootstrap circuit includes: a first transistor of first conductivity type having a first main electrode, a second main electrode and a control electrode connected to a first power supply terminal, a first node, and a second node, respectively; a second transistor of the first conductivity type having a first main electrode, a second main electrode, and a control electrode connected to the first power supply terminal, the second node and the first node, respectively; a first capacitor having a first end connected to the first node and a second end where a first boost pulse is applied; a second capacitor having a first end connected to the second node and a second end where a second boost pulse having opposite polarity to the first boost pulse is applied; and a boost output terminal which outputs boost voltage higher than first power supply voltage supplied to the first power supply terminal.
