Abstract: A switching regulator includes a first switching element for charging an inductor, a switching circuit for discharging the inductor, a controller circuit for generating a first control signal for controlling the level of an output voltage of the switching regulator, and a reverse current suppressing circuit for controlling the on-resistance of the switching circuit based on whether a reverse current is detected in the switching regulator. A circuit and method for controlling the switching regulator are also disclosed.

Abstract: A switching regulator includes a first switching element for charging an inductor, a switching circuit for discharging the inductor, a controller circuit for generating a first control signal for controlling the level of an output voltage of the switching regulator, and a reverse current suppressing circuit for controlling the on-resistance of the switching circuit based on whether a reverse current is detected in the switching regulator. A circuit and method for controlling the switching regulator are also disclosed.

Abstract: An agent for the prophylaxis and treatment of vascular constriction is provided, which contains a compound having a Rho kinase inhibitory activity. In particular, a compound having a Rho kinase inhibitory activity, for example, (+)-trans-4-(1-aminoethyl)-1-(4-pyridylcarbamoyl)cyclohexane, suppresses regenerative intima proliferation after disorder of blood vessel and has various other actions. Therefore, it is useful as an agent for the prophylaxis and treatment of vascular constriction, specifically, an agent for the prophylaxis and treatment of vascular constriction induced by disorder of vascular wall, such as vascular restenosis that occurs after an operation of percutaneus transluminal coronary angioplasty, vascular restenosis that occurs after an operation of percutaneus transluminal angioplasty, vascular constriction that occurs after vascular reconstruction, such as DCA, operation of intravascular indwelling of stent and the like, and vascular constriction that occurs after organ transplantation.