Patent ID: 7361844
Filing Date: 2008-04-22
Classification: H01L,H05K,Y10T

Abstract:
1. Apparatus comprising: a power converter including a circuit board having a top surface and a bottom surface, power conversion circuitry, and a package; the power conversion circuitry including a magnetic circuit having a magnetically permeable core, upper circuitry in a first region on the top surface of the circuit board, and lower circuitry in a second region on the bottom surface of the circuit board; the package including an upper portion defining an external top surface and a lower portion defining an external bottom surface; the upper portion enclosing the first region including the upper circuitry and connections between the upper circuitry and the circuit board; the lower portion enclosing the second region including the lower circuitry and connections between the lower circuitry and the circuit board; the second region being smaller than the first region; the first and second regions being arranged to define an external overhang region on the bottom surface of the circuit board, the overhang region extending along two or more sides of a periphery of the bottom surface of the circuit board; and interface contacts arranged within said overhang region on the bottom surface of the circuit board for making electrical connections to the power converter.