This 45W adapter reference board is intended to be a form, fit and function test platform for low cost charger applications to show the state-of-art700V CoolMOS™ P7superjunction (SJ) MOSFET (IPN70R600P7S) inSOT-223 package. The reference adapter board is designed to fit a very small form factor while maintaining high efficiency, low standby power and various modes of protection for a highly reliable system. The board passes EMI (both conducted and radiated), ESD immunity and surge immunity tests, and can be used for production by customers after a final verification with minor changes. The reference board shows how to use the SOT-223 package to meet the thermal requirements in a smaller package size. By transitioning from a FullPAK package to a SOT-223 in adapter designs the overall system cost can be reduced by lowering the amount of manual assembly. There is no more need to mount the MOSFET to a heatsink and the device can be placed in the automated SMD process.