XL4016 原厂资料

《XL4016 原厂资料》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、深圳市业辉煌电子有限公司Datasheet8A180KHz40VBuckDCtoDCConverterXL4016FeaturesGeneralDescriptionnWide8Vto40VInputVoltageRangeTheXL4016isa180KHzfixedfrequencynOutputAdjustablefrom1.25Vto36VPWMbuck(step-down)DC/DCconverter,nMaximumDutyCycle100%capableofdrivinga8AloadwithhighnMinimumDropOut0.3Vefficiency,low

2、rippleandexcellentlineandnFixed180KHzSwitchingFrequencyloadregulation.Requiringaminimumn8AConstantOutputCurrentCapabilitynumberofexternalcomponents,theregulatornInternalOptimizePowerMOSFETissimpletouseandincludeinternalnHighefficiencyupto96%frequencycompensationandanExcellentlineandloadregula

3、tionfixed-frequencyoscillator.nBuiltinthermalshutdownfunctionnBuiltincurrentlimitfunctionThePWMcontrolcircuitisabletoadjustthenBuiltinoutputshortprotectionfunctiondutyratiolinearlyfrom0to100%.AnovernBuiltininputovervoltageprotectioncurrentprotectionfunctionisbuiltinside.nAvailableinTO220-5Lpa

4、ckageWhenshortprotectionfunctionhappens,theoperationfrequencywillbereducedfrom180KHzto48KHz.AninternalcompensationApplicationsblockisbuiltintominimizeexternalnLCDMonitorandLCDTVcomponentcount.nPortableinstrumentpowersupplynTelecom/NetworkingEquipmentFigure1.PackageTypeofXL4016Rev1.2http://www

5、.yhh198.com1深圳市业辉煌电子有限公司Datasheet8A180KHz40VBuckDCtoDCConverterXL4016PinConfigurationsFigure2.PinConfigurationofXL4016(TopView)Table1PinDescriptionPinNumberPinNameDescriptionGroundPin.Caremustbetakeninlayout.ThispinshouldbeplacedoutsideoftheSchottkyDiodetooutputcapacitor1GNDgroundpathtopreven

6、tswitchingcurrentspikesfrominducingvoltagenoiseintoXL4016.FeedbackPin(FB).Throughanexternalresistordivider2FBnetwork,FBsensestheoutputvoltageandregulatesit.Thefeedbackthresholdvoltageis1.25V.PowerSwitchOutputPin(SW).SWistheswitchnodethat3SWsuppliespowertotheoutput.InternalVoltageRegulatorBypa

7、ssCapacity.Intypicalsystem4VCapplication,TheVCpinconnecta1ufcapacitytoVIN.SupplyVoltageInputPin.XL4016operatesfroma8Vto40V5VINDCvoltage.BypassVintoGNDwithasuitablylargecapacitortoeliminatenoiseontheinput.Rev1.2http://www.yhh198.com2深圳市业辉煌电子有限