C2887857_DC-DC电源芯片_RY9131_规格书_RYCHIP(蕊源)DC-DC电源芯片规格书(1).pdfVIP

RY9131

17V3A500KHzECOTPWMSyncStep-DownRegulator

Features

•Wide4.5Vto17VOperatingInputRange•70mΩ/50mΩLowRDS(ON)InternalPower

•3AContinuousOutputCurrentMOSFETs

•500KHzSwitchingFrequency•OutputAdjustablefrom0.6V

•ECOTModeControlwithFastTransient•NoSchottkyDiodeRequired

Response•ShortProtectionwithHiccup-Mode

•Built-inOverCurrentLimit•Integratedinternalcompensation

•Built-inOverVoltageProtection•ThermalShutdown

•Force-PWMMode•AvailableinSOT23-6Package

•InternalSoft-Start•-40°Cto+85°CTemperatureRange

Applications

•DigitalSet-topBox(STB)•DigitalVideoRecorder(DVR)

•TabletPersonalComputer(Pad)•PortableMediaPlayer(PMP)

•Flat-PanelTelevisionandMonitor•CableModem/XDSL

•Wi-FiRouter/AP•GeneralPurposes

GeneralDescription

TheRY9131isahighfrequency,synchronous,rectified,step-down,switch-modeconverterwithinternalpower

MOSFETs.Itoffersaverycompactsolutiontoprovidea3Acontinuousoutputcurrentoverawideinputsupply

range,withexcellentloadandlineregulation.ECOTcontroloperationprovidesveryfasttransientresponseand

easyloopdesignaswellasverytightoutputregulation.

TheRY9131requiresaminimalnumberofreadilyavailable,externalcomponentsandisavailableinaspacesaving

SOT23-6package.

TypicalApplicationCircuit