Patent ID: 8212315

Claim:
An integrated circuit capable of being used with a power converter, comprising: a transistor capable of being used as a power switch of a power train of said power converter, including: a gate located over a channel region recessed into a semiconductor substrate, a source/drain including a lightly doped region adjacent said channel region, an oppositely doped well extending under said channel region and a portion of said lightly doped region of said source/drain, a doped region adjacent said oppositely doped well and extending under a portion of said lightly doped region of said source/drain; an oppositely doped buried layer under said doped region; and a channel extension, within said oppositely doped well, under said channel region and extending under a portion of said lightly doped region of said source/drain; and a driver switch of a driver formed on said semiconductor substrate and configured to provide a drive signal to said transistor.