Reelxxwg

AP139300mALOW-NOISECMOSLDOAP139Rev.
61of7FEBRUARY2009www.
diodes.
comDiodesIncorporatedLead-freeVeryLowDropoutVoltageLowCurrentConsumption:Typ.
45μA,max.
60uAOutputVoltage:1.
5V,1.
8V,2.
0V,2.
5V,2.
8V,3.
0V3.
3V,and3.
5VGuaranteed300mAOutputInputRangefrom2.
7upto5.
5VThermalShutdownCurrentLimitingStabilitywithLowESRCapacitorsLowTemperatureCoefficientLeadFreePackage:SOT25SOT25:Availablein"Green"MoldingCompound(NoBr,Sb)LeadFreeFinish/RoHSCompliant(Note1)TheAP139isapositivevoltagelinearregulatorutilizingCMOStechnology.
Thefeaturesthatincludelowquiescentcurrent(45μAtyp.
),lowdropoutvoltage,andhighoutputvoltageaccuracy,makeitidealforbatteryapplications.
ENinputconnectedtothedevicewillproducealowbiascurrent.
Thespace-savingSOT25packageisattractivefor"pocket"and"handheld"applications.
Thisruggeddevicehasboththermalshutdown,andcurrentlimitprotectionstopreventdevicefailureunderthe"worst"operatingconditions.
Inalownoise,regulatedsupplyapplication,a10nFcapacitorisnecessarytobeplacedinbetweenBypassandGround.
TheAP139isstablewithalowESRoutputcapacitorof1.
0μForgreater.
PersonalCommunicationDevicesHomeElectric/ElectronicAppliancesPCPeripheralsBattery-PoweredDevicesOutputVoltagePackagePackingW:SOT25LeadFreeG:Green7:Tape&ReelL:LeadFreeAP139-XXWX-715:1.
5V18:1.
8V20:2.
0V25:2.
5V28:2.
8V30:3.
0V33:3.
3V35:3.
5VDevicePackageCodePackaging(Note2)7"TapeandReelQuantityPartNumberSuffixAP139-XXWL-7WSOT253000/Tape&Reel-7AP139-XXWG-7WSOT253000/Tape&Reel-7Notes:1.
EUDirective2002/95/EC(RoHS).
AllapplicableRoHSexemptionsapplied.
Pleasevisitourwebsiteathttp://www.
diodes.
com/products/lead_free.
html.
2.
PadlayoutasshownonDiodesInc.
suggestedpadlayoutdocumentAP02001,whichcanbefoundonourwebsiteathttp://www.
diodes.
com/datasheets/ap02001.
pdf.
FeaturesGeneralDescriptionApplicationsOrderingInformationAP139300mALOW-NOISECMOSLDOAP139Rev.
62of7FEBRUARY2009www.
diodes.
comDiodesIncorporated(TopView)SOT2513254BYPVINENGNDVOUTAP139PinNamePinNo.
DescriptionVIN1PowerSupplyGND2GroundEN3EnablePinBYP4BypassSignalPinVOUT5OutputBlockDiagramCurrentLimitThermalShutdownAMP+-VrefBYPEN1uAVOUTGNDVINR1R2AbsoluteMaximumRatingsSymbolParameterRatingUnitVINInputVoltage+6VIOUTOutputCurrentPD/(VIN-VO)mAVOUTOutputVoltageGND-0.
3toVIN+0.
3VESDClassificationBTOPOperatingJunctionTemperatureRange-40to+125CTMJMaximumJunctionTemperature150CPDInternalPowerDissipation250mWPinAssignmentsPinDescriptionsAP139300mALOW-NOISECMOSLDOAP139Rev.
63of7FEBRUARY2009www.
diodes.
comDiodesIncorporatedRecommendedOperatingConditionsSymbolParameterMinMaxUnitVINInputvoltage2.
75.
5VIOUTOutputCurrent0300mATAOperatingAmbientTemperature-4085°CElectricalCharacteristics(TA=+25C,unlessotherwisenoted)SymbolParameterTestConditionsMinTyp.
MaxUnitVINInputVoltageNote3-5.
5VIQQuiescentCurrentIO=0mA-4560μAISTBStandbyCurrentVIN=5.
0V,VOUT=0V,VEN1.
05V300450-mAIshortShortCircuitCurrentVcc=5V,VoutcomDiodesIncorporatedTypicalApplicationAP139BYPENVOUTGNDVINC11uFC210nFC31uFINOUTTypicalPerformanceCharacteristics-90-80-70-60-50-40-30-20-1001.
0E+001.
0E+011.
0E+021.
0E+031.
0E+041.
0E+051.
0E+06PowerSupplyRejectionRatioPSRR(dB)Frequency(Hz)BP=1nFBP=5nFBP=10nFBP=20nFIout=100mA-90-80-70-60-50-40-30-20-1001.
0E+001.
0E+011.
0E+021.
0E+031.
0E+041.
0E+051.
0E+06PowerSupplyRejectionRatioPSRR(dB)Frequency(Hz)100mA10mA1mABP=10nF01020304050607080901003.
544.
555.
56VccVsQuiescentCurrentVcc(V)QuiescentCurrent(μA)TA=25℃AP139300mALOW-NOISECMOSLDOAP139Rev.
65of7FEBRUARY2009www.
diodes.
comDiodesIncorporatedTypicalPerformanceCharacteristics(Continued)-90-80-70-60-50-40-30-20-1001.
0E+001.
0E+011.
0E+021.
0E+031.
0E+041.
0E+051.
0E+06PowerSupplyRejectionRatioPSRR(dB)Frequency(Hz)100mA10mA1mABP=000.
10.
20.
30.
40.
50.
60.
71.
51.
822.
52.
833.
33.
5CurrentLimit(A)VoutVsCurrentLimitVcc=5VVout(V)0501001502002503003504003.
544.
555.
56VccVsShortCurrentVcc(V)ShortCurrent(mA)ToptobottomVout=1.
5VVout=1.
8VVout=2.
5VVout=3.
3VFunctionalDescriptionTheAP139ofCMOSregulatorscontainaPMOSpasstransistor,voltagereference,erroramplifier,over-currentprotection,thermalshutdown.
TheP-channelpasstransistorreceivesdatafromtheerroramplifier,over-currentprotection,andthermalprotectioncircuits.
Duringnormaloperation,theerroramplifiercomparestheoutputvoltagetoaprecisionreference.
Theover-currentandthermalshutdowncircuitsbecomeactivewhenthejunctiontemperatureexceeds130oC,orthecurrentexceeds300mA.
Duringthermalshutdown,theoutputvoltageremainslow.
Normaloperationisrestoredwhenthejunctiontemperaturedropsbelow110oC.
TheAP139switchesfromvoltagemodetocurrentmodewhentheloadexceedstheratedoutputcurrent.
Thispreventsover-stress.
EnableTheenablepinnormallyfloatshigh.
Whenactively,pulledlow,thePMOSpasstransistorshutsoff,andallinternalcircuitsarepowereddown.
Inthisstate,thequiescentcurrentislessthan2μA.
Thispinbehavesmuchlikeanelectronicswitch.
ExternalCapacitorTheAP139isstablewithalowESRoutputcapacitortogroundof1.
0μForgreater.
ItcankeepstableevenwithhigherESRcapacitors.
AsecondcapacitorisrecommendedbetweentheinputandgroundtostabilizeVIN.
Theinputcapacitorshouldbelargerthan0.
1μFtohaveabeneficialeffect.
Allcapacitorsshouldbeplacedincloseproximitytothepins.
A"quiet"groundterminationisdesirable.
AP139300mALOW-NOISECMOSLDOAP139Rev.
66of7FEBRUARY2009www.
diodes.
comDiodesIncorporatedMarkingInformation(1)SOT25123574XXYWXXX:IdentificationcodeW:Week:A~Z:1~26week;X:a~z:LeadFree(TopView)Y:Year0~9a~z:27~52week;zrepresents52and53weekA~Z:GreenPartNumberPackageIdentificationCodeAP139-15WSOT25N0AP139-18WSOT25N1AP139-20WSOT25N2AP139-25WSOT25N3AP139-28WSOT25N4AP139-30WSOT25N5AP139-33WSOT25N6AP139-35WSOT25N7PackageInformation(AllDimensionsinmm)AP139300mALOW-NOISECMOSLDOAP139Rev.
67of7FEBRUARY2009www.
diodes.
comDiodesIncorporatedIMPORTANTNOTICELIFESUPPORTDiodesIncorporatedanditssubsidiariesreservetherighttomakemodifications,enhancements,improvements,correctionsorotherchangeswithoutfurthernoticetoanyproductherein.
DiodesIncorporateddoesnotassumeanyliabilityarisingoutoftheapplicationoruseofanyproductdescribedherein;neitherdoesitconveyanylicenseunderitspatentrights,northerightsofothers.
TheuserofproductsinsuchapplicationsshallassumeallrisksofsuchuseandwillagreetoholdDiodesIncorporatedandallthecompanieswhoseproductsarerepresentedonourwebsite,harmlessagainstalldamages.
DiodesIncorporatedproductsarenotauthorizedforuseascriticalcomponentsinlifesupportdevicesorsystemswithouttheexpressedwrittenapprovalofthePresidentofDiodesIncorporated.