This 5V / 1.2A adapter solution is fully test and passes EMI and EMC (CE,RE) safety requirements. It implements a high efficiency primary side controller UCC28910. The efficiency of the design complies with Energy Star 6 and is designed to fit into small form factor housing. The design measures 36mmX30mmX15mm and has been thermally characterized. No load efficiency is <30mW over the entire operating range. EE16 transformer of low cost is used.