XC9235/9236/9237系列是内置导通电阻为0.42Ω的P-ch驱动器和导通电阻为0.52Ω的N-ch驱动器的具有同步整流特性的DC/DC转换器,兼容陶瓷电容，可直接取代AS1324芯片。XC9235/9236/9237系列参数特征：DriverTransistorBuilt-In:0.42ΩP-chdrivertransistor0.52ΩN-chswitchtransistorInputVoltage:2.0V~6.0V(A/B/Ctypes)1.8V~6.0V(D/E/F/Gtypes)OutputVoltage:0.8V~4.0V(Internallyset)0.9V~6.0V(Externallyset)HighEfficiency:92%(TYP.)OutputCurrent:600mAOscillationFrequency:1.2MHz,3.0MHz(+15%)MaximumDutyCycle:100%ControlMethods:PWM(XC9235)PWM/PFMAuto(XC9236)PWM/PFMManual(XC9237)Function:CurrentLimiterCircuitBuilt-In(C***tantCurrent&Latching)CDischarge(B/C/D/E/F/Gtypes)LHighSpeedSoftStart(B/F/Gtype)Capacitor:LowESRCeramicCapacitorOperatingAmbientTemperature:-40℃~+85℃Packages:SOT-25(A/B/Ctypesonly),USP-6CUSP-6EL(A/B/Ctypesonly)EnvironmentallyFriendly:EURoHSCompliant,PbFreeXC9235B/F/G,XC9236B/F/G,XC9237B/F/G系列内部设定0.25ms(TYP).软启动时间,因而能够在很短的时间内快速启动。XC9235B/C/D/E/F/G,XC9236B/C/D/E/F/G,XC9237B/C/D/E/F/G内部集成了负载电容CL自放电功能,它能通过LX和VSS引脚之间的自动放电开关把负载电容上的电荷释放。当设备进入待机模式,输出电压可以通过这个功能快速返回到VSS电平。备有SOT-25(A/B/C系列)和USP-6C两种封装可供选择。)