L2273

Shenzhen LIZE Electronic Technology Co., Ltd Current Mode PWM Controller L2273 SPECIFICATION L2273 Current Mode PWM Controller VERSION 1.0 reserves the right to change this documentation without prior notice Shenzhen LIZE Electronic Technology Co., Ltd Current Mode PWM Controller L2273 Description L2273 is highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyblack converter applications in sub 60W range. Fixed 65kHz PWM switching frequency at normal operation . At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss.Lower standby power and higher conversion efficiency in thus achieved. VDD low startup current and low operating current contribute to a reliable power on startup design with L2273. A large value resistor could thus be used in the startup circuit to minimize the standby power. L2273 offers complete protection cov-erage with automatic self- recovery...