According to an embodiment disclosed in the specification, an electronic device comprises a battery disposed inside the electronic device; a printed circuit board (PCB) disposed inside the electronic device; at least one electronic component disposed on the PCB; and a first buck converter having a first end and a second end, wherein the first end is routed to the battery; and a second buck converter having a first end and a second end, wherein the first end is selectively electrically connected to the second end of the first buck converter, and the second end is routed to the at least one electronic component, and wherein the first buck converter and the second buck converter are configured to boost a voltage provided from the battery through an electrical path formed from the battery by the first end of the first buck converter, and the second end of the first buck converter, the first end of the second buck converter and the second end of the second buck converter to the at least one electronic component.