Dc/dc converter component

A DC/DC converter component comprising:

• at least one inductor component;
• a semiconductor integrated circuit including a switch circuit connected to the inductor component, and a control circuit configured to control the switch circuit;
• and
• a package substrate to which the semiconductor integrated circuit is mounted, the package substrate having a mounting face configured to oppose an other substrate when the package substrate is mounted to the other substrate,
• the inductor component including:
• an element body including a magnetic layer including a magnetic material, and having a main face in parallel with the mounting face;
• a plurality of inductor wiring lines, each extending in the element body and in parallel with the main face;
• and
• a vertical wiring line extending from each of the inductor wiring lines in a thickness direction orthogonal to the main face, and being exposed from the main face,
• each of the inductor wiring lines having a number of turns equal to or less than 0.5 turns,
• a value of an inductance of a second inductor wiring line being 10% or more greater than a value of an inductance of a first inductor wiring line, when one of the plurality of inductor wiring lines corresponds to the first inductor wiring line, and when an other one of the plurality of inductor wiring lines that is different from the first inductor wiring line corresponds to the second inductor wiring line,
• the inductor component having, in the thickness direction, a dimension equal to or less than 0.25 millimeters, and
• the inductor component being mounted to the package substrate.