VERTICAL CURRENT TRANSPORT IN A POWER CONVERTER CIRCUIT

In at least one embodiment of the invention, an apparatus includes an integrated circuit comprising a power stage portion of a power converter circuit. The power stage portion includes a first switch circuit portion formed by a first plurality of lateral devices in a first substrate. The power stage portion includes a second switch circuit portion formed by a second plurality of lateral devices in the first substrate. The integrated circuit includes a multi-layer current routing structure configured to transport a first current between the first plurality of lateral devices and an array of conductor structures on the surface of the integrated circuit using a first substantially vertical conduction path when the first switch circuit portion is enabled. The multi-layer current routing structure is configured to transport a second current between the second plurality of lateral devices and the array of conductor structures using a second substantially vertical conduction path when the second switch portion is enabled.