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1、UnderstandingBuckĆBoostPowerStagesinSwitchmodePowerSuppliesApplicationReportMarch1999MixedSignalProductsSLVA059IMPORTANTNOTICETexasInstrumentsanditssubsidiaries(TI)reservetherighttomakechangestotheirproductsortodiscontinueanyproductorservicewithoutnotice,an
2、dadvisecustomerstoobtainthelatestversionofrelevantinformationtoverify,beforeplacingorders,thatinformationbeingreliedoniscurrentandcomplete.Allproductsaresoldsubjecttothetermsandconditionsofsalesuppliedatthetimeoforderacknowledgement,includingthosepertaining
3、towarranty,patentinfringement,andlimitationofliability.TIwarrantsperformanceofitssemiconductorproductstothespecificationsapplicableatthetimeofsaleinaccordancewithTI’sstandardwarranty.TestingandotherqualitycontroltechniquesareutilizedtotheextentTIdeemsnecess
4、arytosupportthiswarranty.Specifictestingofallparametersofeachdeviceisnotnecessarilyperformed,exceptthosemandatedbygovernmentrequirements.CERTAINAPPLICATIONSUSINGSEMICONDUCTORPRODUCTSMAYINVOLVEPOTENTIALRISKSOFDEATH,PERSONALINJURY,ORSEVEREPROPERTYORENVIRONMEN
5、TALDAMAGE(“CRITICALAPPLICATIONS”).TISEMICONDUCTORPRODUCTSARENOTDESIGNED,AUTHORIZED,ORWARRANTEDTOBESUITABLEFORUSEINLIFE-SUPPORTDEVICESORSYSTEMSOROTHERCRITICALAPPLICATIONS.INCLUSIONOFTIPRODUCTSINSUCHAPPLICATIONSISUNDERSTOODTOBEFULLYATTHECUSTOMER’SRISK.Inorder
6、tominimizerisksassociatedwiththecustomer’sapplications,adequatedesignandoperatingsafeguardsmustbeprovidedbythecustomertominimizeinherentorproceduralhazards.TIassumesnoliabilityforapplicationsassistanceorcustomerproductdesign.TIdoesnotwarrantorrepresentthata
7、nylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orotherintellectualpropertyrightofTIcoveringorrelatingtoanycombination,machine,orprocessinwhichsuchsemiconductorproductsorservicesmightbeorareused.TI’spublicationofinforma
8、tionregardinganythirdparty’sproductsorservicesdoesnotconstituteTI’sapproval,warrantyorendorsementthereof.Copyrightã1999,TexasInstrumentsIncorporatedContents1Introduction................................
