Giantec’s GT5011 won 2011 EDN China’s leading award on Dec. 1st,2011. GT5011 simplifies low power CV/CC charger/adaptor designs by eliminating opto-coupler and secondary control circuitry through patented current sampling technology, which are suitable for Cell/cordless Phone Charger, PDAs/Portable audio devices Charger, Small Power Adaptor/Charger , LED driver and Standby supplies for consumer electronics. GT5011 multi-mode operations and proprietary Sleeping-mode are utilized to achieve low standby power less than 30mW, high efficiency and audio & noise free. The frequency jittering could also greatly reduce EMI filter cost. GT5011 utilizes 3 Pin package to realize accurate CV/CC regulation for cost effective and the device reliability is also enhanced.GT5011 offers rich protection features including Cycle-by-Cycle peak current limiting, VCC UVLO, OVP and Clamp. The controller continues attempting start-up until the fault condition is removed. Every restart is a soft start. In addition, GT5011 is suitable for low cost buck power system and provide good performance. GT5011 with a fully independent intellectual property and has applied for China and the United States patent.