XZ3215 datasheet V1 1使用手册说明.pdf
xz3215
2
5A,2.5MHzICControlledOutputSynchronousStep-DownConverter
DESCRIPTIONFEATURES
2
Thexz3215isahigh-efficiency,DC-to-DCstep-downICDynamicOutputControl
switchingregulator,capableofdeliveringupto5AofSynchronousHighEfficiencyupto95%
2Fastloadtransientresponse
pulseload.ItintegratesanICinterfacethatdynamically
scalestheoutputvoltagesondemand.TheDCDCcontrolCapableofDelivering5A
blockbelongstoanewbreedofhighfrequencyInputOVPat6.2V
synchronousStep-DownconverterthatcombinestheNoExternalSchottkyDiodeNeeded
advantagesofvoltagemodecontrolandThermalshutdownandUVLO
Constant-On-Timecontrol.ItsadaptiveCSP-20(4x5)package
Constant-On-Timecontroldynamicallychangesswitch
ontimetoachieveaconstantswitchingfrequency.It
APPLICATIONS
doesnothavetheminimumon-timeconstrainnormally
afixed-frequencycurrentmodeStep-downrequires,ARMbasedCPUs
allowingittogodowntoverylowdutyratiowithoutSmartPhone
affectingloopstability.ThevoltagemodenaturealsoTablet,MID
providesamoresuperiorloadtransientresponseandaSmartSet-TopBox,OTT
seamlesstransitionfromPFMtoPWMmodes.
Cycle-by-cyclecurrentlimitprovidesoutput