Provided is a switching voltage regulator including: a converting circuit configured to receive an input voltage and to generate an output voltage through a switching operation; and a control circuit configured to cause the output voltage to be generated by controlling the switching operation, wherein the converting circuit includes: at least one switch formed on a first die and configured to perform the switching operation under control of the control circuit; and at least one blocking transistor formed on a second die and electrically connected to at least one first transistor, and wherein the first die is vertically stacked on the second die.