Patent ID: 8063472

Claim:
A packaged buck converter comprising a plurality of leads including at least one die attach pad lead, at least one high side gate lead, at least one high side source lead, at least one low side source lead, and at least one controller lead; a conductive die attach pad electrically connected to the die attach pad lead, wherein the die attach pad has a first surface and a second surface opposite the first surface; a low side die mounted to the first surface and having a low side gate, a low side source electrically connected to the low side source lead, and a low side drain electrically connected to the die attach pad; a high side die mounted to the second surface and having a high side source electrically connected to the die attach pad, a high side drain, and a high side gate electrically connected to the high side gate lead; a controller die mounted to the first surface and electrically connected to the die attach pad, to the controller lead, to the high side gate lead and to the low side gate such that the controller die controls the high side gate and low side gate; a molding compound enclosing the controller die, the low side die, the die attach pad, a portion of the high side die such that the high side drain is exposed to an external surface of the molding compound, and a portion of the plurality of leads such that the leads extend outside of the molding compound.