DescriptionTheFR9888isasynchronousstep-downDC/DCconverterthatprovideswide4.5Vto23Vinputvoltagerangeand3.5Acontinuousloadcurrentcapability.TheFR9888faultprotectionincludescycle-by-cyclecurrentlimit,inputUVLO,outputovervoltageprotectionandthermalshutdown.Besides,adjustablesoft-startfunctionpreventsinrushcurrentatturn-on.Thisdeviceusescurrentmodecontrolschemewhichprovidesfasttransientresp***e.InternalCompensationfunctionreducesexternalcompensationcomponentsandsimplifiesthedesignprocess.Inshutdownmode,thesupplycurrentislessthan1uA.TheFR9888is***ailableinan8-pinSOICpackage,providesaverycompactsystemsolutionandgoodthermalconductance.Features●HighEfficiencyUpto96%●Low***(on)integratedPowerMOSFET●InternalCompensationFunction●WideInputVoltageRange:4.5Vto23V●AdjustableOutputVoltageRange:0.925Vto20V●3.5AOutputCurrent●Fixed340KHzSwitchingFrequency●CurrentModeOperation●AdjustableSoft-Start●Cycle-by-Cyclecurrentlimit●InputUnderVoltageLockout●Over-TemperatureProtectionWithAutoRecovery●<1uAShutdownCurrent●SOP-8ExposedPadPackageApplicati***●Set-Top-Box(STB)●Televisi***●DistributedPowerSystems●XDSLModems)