Patent ID: 8638078

Claim:
A semiconductor integrated circuit device, comprising: a voltage input terminal for receiving an input voltage; an output terminal; a reference potential terminal; a first switching MOSFET having a source-drain path coupled between the voltage input terminal and the output terminal, and a gate; a second switching MOSFET having a source-drain path coupled between the output terminal and the reference potential terminal, and a gate; a first derive circuit operated by a first voltage corresponding to the input voltage and coupled to drive the gate of the first switching MOSFET; a second derive circuit operated by a second voltage and coupled to drive the gate of the second switching MOSFET; and a control circuit operated by the input voltage or a third voltage which is equal to or less than the second voltage, and coupled to receive an control signal and providing drive signals for respective gates of the first and the second drive circuits, wherein the control circuit includes a first voltage level shift circuit which shifts a voltage level of a first driving signal for the first switching MOSFET and feeds back the first driving signal of the first switching MOSFET to an input of the second drive circuit; and a second voltage shift circuit which shifts a voltage level of a second driving signal for the second switching MOSFET and feeds back the second driving signal of the second switching MOSFET to an input of the first drive circuit, wherein the first switching MOSFET, the second switching MOSFET, the first derive circuit, the second derive circuit, and the control circuit are sealed in one package.