XN1049 - Innuovo

XN1049 Switch Power Supply PWM Controller

XN1049 which is optimized for high performance is a highly integrated current mode PWM control IC. It is applied for switch power of the small-sized and medium-sized for example the power adaptor. For lower the standby power and higher RoHS compliant, the IC has the Burst Mode function and very low startup current and working current. At the condition of no .

Features

„ „ „ „ „ „ „ „ „ „ „ „ „ „ „ Extended burst mode control for improving efficiency and minimum standby power Low startup current(4uA) Low operation current(1.4mA) Leading edge blanking was built in Synchronous slope compensation was built in Current mode operates External frequency Over current protection cycle by cycle(OCP) Good protection coverage with auto selfrecovery VDD over voltage clamp and under voltage lockout with hysteresis (UVLO) Maximum gate-drive output clamped voltage (18V) Frequency jitter Constant limited output power Over load protection(OLP) Free audio noise operation progr.