A semiconductor device includes a first transistor; a first resistor; a second resistor; a first circuit configured to apply a first voltage to the first transistor. The first voltage is based on a difference between a reference voltage and an output voltage divided by the first and second resistors. A first current through the first circuit in a first mode is less than a second current through the first circuit in a second mode. The semiconductor device includes a capacitor connected to the output terminal; and a second circuit connected to the capacitor that: (a) disconnects the first circuit from the capacitor and apply a second voltage to the capacitor in a first mode, and (b) electrically connects the first circuit to the capacitor in the second mode.