According to one embodiment, a semiconductor integrated circuit includes the following configuration. A first transistor has a source and a gate coupled to first and second voltage nodes respectively. A second transistor has a source and a gate coupled to third and second voltage nodes respectively. A third transistor is coupled between the first and second transistors. A fourth transistor has a source coupled to the first voltage node and a gate coupled to a first output node between the second and third transistors. A fifth transistor has a source coupled to the third voltage node, a gate coupled to the gate of the fourth transistor and a drain coupled to a drain of the fourth transistor. A sixth transistor has a gate supplied with a voltage output from a second output node between the fourth and fifth transistors and a source coupled to the first voltage node.