RY1117B-33L 1A低压差线性稳压器 SOT223 TO252 SOT89 深圳恒锐丰科技.pdf

RY1117B

1ALow-DropoutLinearRegulator

Features

•Maximumoutputcurrentis1.2A•Standbycurrent:2mA(typ.)

•Rangeofoperationinputvoltage:Max15V•Loadregulation:0.2%/A(typ.)

•Lineregulation:0.03%/V(typ.)•EnvironmentTemperature:-40℃~85℃

Applications

•PowerManagementforComputerMotherBoard,•DVDDecodeBoard

GraphicCard•ADSLModem

•LCDMonitorandLCDTV•PostRegulatorsforSwitchingSupplies

GeneralDescription

RY1117Bisaseriesoflowdropoutthree-terminalregulatorswithadropoutof1.3Vat1Aloadcurrent.RY1117B

featuresaverylowstandbycurrent2mAcomparedto5mAofcompetitor.

Otherthanafixedversion,VOUT=1.2V,1.5V,1.8V,2.5V,2.85V,3.3V,and5V,RY1117Bhasanadjustableversion,

whichcanprovideanoutputvoltagefrom1.25to12Vwithonlytwoexternalresistors.

RY1117Boffersthermalshutdownfunction,toassurethestabilityofchipandpowersystem.Itusestrimming

techniquetoguaranteeoutputvoltageaccuracywithin2%.Otheroutputvoltageaccuracycanbecustomizedon

demand,suchas1%.

RY1117BisavailableinSOT-223,TO-252,SOT-89powerpackage.

TypicalApplicationCircuit

VINVOUT

INOUT

COUT

10μF