描述TheTPS54331deviceisa28-V,3-Anon-synchronous***converterthatintegratesalow***(on)high-sideMOSFET.Toincreaseefficiencyatlightloads,apulseskippingEco-modefeatureisautomaticallyactivated.Furthermore,the1-µAshutdownsupply-currentallowsthedevicetobeusedinbattery-poweredapplicati***.Currentmodecontrolwithinternalslopecompensationsimplifiestheexternalcompensationcalculati***andreducescomponentcountwhileallowingtheuseofceramicoutputcapacitors.Aresistordividerprogramsthehysteresisoftheinputundervoltagelockout.Anovervoltagetransientprotectioncircuitlimitsvoltageovershootsduringstartupandtransientconditi***.Acycle-by-cyclecurrent-limitscheme,frequencyfoldbackandthermalshutdownprotectthedeviceandtheloadintheeventofanoverloadcondition.TheTPS54331deviceis***ailableinan8-pinSOICpackageand8-pinSOPowerPADpackagethath***ebeeninternallyoptimizedtoimprovethermalperformance.特性·3.5to28-VInputVoltageRange·AdjustableOutputVoltageDownto0.8V·Integrated80-mΩHigh-SideMOSFETSupportsupto3-AContinuousOutputCurrent·HighEfficiencyatLightLoadsWithaPulseSkippingEco-mode™·Fixed570kHzSwitchingFrequency·Typical1-µAShutdownQuiescentCurrent·AdjustableSlow-StartLimitsInrushCurrents·ProgrammableUVLOThreshold·OvervoltageTransientProtection·Cycle-by-CycleCurrentLimit,FrequencyFoldBack,andThermalShutdownProtection·***ailableinEasy-to-UseSOIC8PackageorThermallyEnhancedSOIC8PowerPAD™Package·SupportedbyWEBENCH®SoftwareTool(www.TI.com/WEBENCH)·APPLICATI***oC***umerApplicati***suchasSet-TopBoxes,CPEEquipment,LCDDisplays,Peripherals,andBatteryChargersoIndustrialandCar-AudioPowerSupplieso5-V,12-V,and24-VDistributedPowerSystems封装：SOIC(D))