Patent ID: 7428157
Filing Date: 2008-09-23
Classification: H02M

Abstract:
1. A synchronous switching regulator comprising: a regulator controller having a controller ground; and a regulator power stage in communication with the regulator controller, the regulator power stage having a layout including substantially identical first and second half power stages, each half power stage having its own ground bond wire, the ground bond wires of the half power stages positioned on opposite sides of the layout to substantially eliminate coupling between the ground bond wires, each half power stage further having its own power supply bond wire, the controller ground positioned substantially midway between the power supply bond wire in one half power stage and a respective ground bond wire in the other half power stage; and means for matching the mutual inductance between the power supply bond wire and the regulator controller ground bond wire and for matching the mutual inductance between the ground bond wire and the regulator controller ground bond wire.