RY9125 17V 2A 500KHz 高效率恒功率同步降压稳压器 SOT23-6 深圳恒锐丰科技.pdf

RY9125

17V2A500KHzECOTForce-CCMSyncStep-DownRegulator

Features

•Wide4.5Vto17VOperatingInputRange•110mΩ/70mΩLowRDS(ON)InternalPower

•2AContinuousOutputCurrentMOSFETs

•500KHzSwitchingFrequency•OutputAdjustablefrom0.765V

•ECOTModeControlwithFastTransient•NoSchottkyDiodeRequired

Response•ShortProtectionwithHiccup-Mode

•Built-inOverCurrentLimit•Integratedinternalcompensation

•Built-inOverVoltageProtection•ThermalShutdown

•ContinuousConductionMode(CCM)•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

TheRY9125isahighfrequency,synchronous,rectified,step-down,switch-modeconverterwithinternalpower

MOSFETs.Itoffersaverycompactsolutiontoprovide2Acontinuousoutputcurrentoverwideinputsupplyrange

withexcellentloadandlineregulation.ECOTcontroloperationprovidesveryfasttransientresponseandeasyloop

designaswellasverytightoutputregulation.

TheRY9125requiresaminimalnumberofexternalcomponents,andavailableinaspacesavingSOT23-6package.

TypicalApplicationCircuit