输入电压可低至2.2V的降压式同步控制器

Manytelecommunicationsandcomputingapplicationsneedhighefficiencystep-downDC/DCconvertersthatcanoperatefromaverylowinputvoltage.ThehighoutputpowersynchronouscontrollerLT3740isidealfortheseapplications,convertinginputsuppliesrangingfrom2.2Vto22Vtooutputsaslowas0.8Vwithloadcurrentsfrom2Ato20A.Applicationsincludedistributed

powersystems,point-of-loadregulationandconversionoflogicsupplies.

Step-DownSynchronousControllerOperatesfromInputsDownto2.2VDesignNote443WeiGuIntroductiontransientresponseandverylowon-times.Furthermore,Manytelecommunicationsandcomputingapplicationsapowergoodsignalisavailabletomonitortheoutputneedhighefciencystep-downDC/DCconvertersthatvoltage.ThetrackingcapabilitybuiltintoXFERcanbecanoperatefromaverylowinputvoltage.ThehighusedtoimplementcontroloftheoutputvoltagewhenoutputpowersynchronouscontrollerLT3740isidealrampingupandrampingdown.Iflessthan0.8Visappliedfortheseapplications,convertinginp