DP2281 High Performance Current Mode PWM Controller GENERAL DESCRIPTION DP2281 is a highly integrated current mode PW M control IC optimized for high perform ance, low standby power and cost effect ive offline flyback converter applicati ons. PWM switching frequency at normal operation is internally fixed and is tr immed to tight range. At no load or lig ht load condition, the IC operates in e xtended burst mode to minimize switchin g loss, which can achieve less than 75m W standby.