TheRT9293isahighfrequency,asynchronousboostconverter.TheinternalMOSFETcansupportupto10WhiteLEDsforbacklightingandOLEDpowerapplication,andtheinternalsoftstartfunctioncanreducetheinrushcurrent.Thedeviceoperateswith1-MHzfixedswitchingfrequencytoallow***allexternalcomponentsandtosimplifypossibleEMIproblems.Fortheprotection,theRT9293Aprovides50VOVPandtheRT9293Bprovides50V/20VOVPtoallowinexpensiveand***all-outputcapacitorswithlowervoltageratings.TheLEDcurrentisinitiallysetwiththeexternalsenseresistorRSET.TheRT9293is***ailableinthetinypackagetypeTSOT-23-6andWDFN-8L2x2packagestoprovidethebestsolutionforPCBspaces***ingandtotalBOMcost.OrderingInfoNote:Richtekproductsare:?RoHScompliantandcompatiblewiththecurrentrequirementsofIPC/JEDECJ-STD-020.?SuitableforuseinSnPborPb-freesolderingprocesses.Features•VINOperatingRange:2.5Vto5.5V•InternalPowerN-MOSFETSwitch•WideRangeforPWMDimming(100Hzto200kHz)•MinimizetheExternalComponentCounts•InternalSoftStart•InternalCompensation•UnderVoltageProtection•OverVoltageProtection•OverTemperatureProtection•***allTSOT-23-6and8-LeadWDFNPackages•RoHSCompliantandHalogenFreeApplication•CellularPhones•DigitalCameras•PDAsand***artPhonesandMP3andOLED.•PortableInstrumentsPinConfigurati***(TOPVIEW)TSOT-23-6WDFN-8L2x2TypicalApplicati***Circuit)