Semiconductor device and DC-to-DC converter

摘要

In general, according to one embodiment, a semiconductor device includes a device main body, a semiconductor substrate. The device main body includes a semiconductor substrate mounting part and a first conductor provided around the semiconductor substrate mounting part. The semiconductor substrate includes a DC-to-DC converter control circuit having a detector to detect at least one of a current flowing through the first conductor and a voltage supplied to the first conductor. The semiconductor substrate is disposed on the semiconductor substrate mounting part so that the detector comes close to the first conductor.

主权项

1. A semiconductor device comprising:
a semiconductor substrate including a DC-to-DC converter control circuit, the DC-to-DC converter control circuit including a first switch element, a detector connected to the first switch element, and a driver circuit driving the first switch element, the semiconductor substrate having a first terminal for power supply and a second terminal for input signals to the driver circuit, the first terminal being electrically connected to the first switch element; a first wire connecting the first terminal; and a second wire connecting the second terminal, a length of the second wire being longer than a length of the first wire.