RY9330 28V 2A 500KHz 低功耗、高精度、同步降压稳压器 ESOP8 深圳恒锐丰科技.pdf

RY9330

28V3A500KHzECOTPSMSyncStep-DownRegulator

Features

•Wide4.5Vto28VOperatingInputRange•100mΩ/50mΩLowRDS(ON)InternalPower

•3AContinuousOutputCurrentMOSFETs

•500KHzSwitchingFrequency•OutputAdjustablefrom0.6/0.8/0.765/0.923V

•ECOTPSMModeControlwithFastTransient•NoSchottkyDiodeRequired

Response•ShortProtectionwithHiccup-Mode

•Built-inOverCurrentLimit•Integratedinternalcompensation

•Built-inOverVoltageProtection•ThermalShutdown

•PFMModeforHighEfficiencyinLightLoad•AvailableinESOP8Package

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

Applications

•DigitalSet-topBox(STB)•DigitalTVPower

•HDBlu-ray™DiscPlayer•Networkhometerminalequipment

•SecurityMonitoring•GeneralPurposes

GeneralDescription

TheRY9330isahighfrequency,synchronous,rectified,step-down,switch-modeconverterwithinternalpower

MOSFETs.Itoffersaverycompactsolutiontoprovidea3Acontinuousoutputcurrentoverawideinputsupply

range,withexcellentloadandlineregulation.ECOTPSMcontroloperationprovidesveryfasttransientresponse

andeasyloopdesignaswellasverytightoutputregulation.

TheRY9330requiresaminimalnumberofreadilyavailable,externalcomponentsandisavailableinaspacesaving

ESOP8package.

TypicalApplicationCircuit

C1