RY3708 5.5V输出1.2MHz升压稳压器 SOT23-6 深圳恒锐丰科技.pdf

RY3708

5.5VOutput1.2MHzBoostRegulator

Features

•2.5Vto5.5VInputVoltage•OutputShortCircuitProtection

•2.5Vto5.5VOutputVoltage•OutputOver-VoltageProtection

•1.2MHzFixedSwitchingFrequency•ThermalShutdownProtection

•Internal4ASwitchCurrentLimit•OutputAdjustablefromInput,0.6VFB

•PowerSaveOperationModeatLightLoad•-40°Cto+85°CTemperatureRange

•Internal1.5mSSoftStartTime•AvailableinSOT23-6Package

Applications

•DigitalSet-topBox(STB)•Battery-PoweredEquipment

•TabletPersonalComputer•PortableMediaPlayer(PMP)

•LCDBiasSupply•GeneralPurposes

GeneralDescription

TheRY3708isaconstantfrequency,currentmodestep-upconverterintendedforsmall,lowpowerapplications.

TheRY3708switchesat1.2MHzandallowstheuseoftiny,lowcostcapacitorsandinductors2mmorlessinheight.

Internalsoft-startresultsinsmallinrushcurrentandextendsbatterylife.

TheRY3708includesunder-voltagelockout,currentlimiting,andthermaloverloadprotectiontopreventdamage

intheeventofanoutputoverload.TheRY3708isavailableinasmall6-pinSOT-23package.

TypicalApplicationCircuit

R1

ON/

ENFB

OFF

R2

VIN