2024年10月30日发(作者：昝南蓉)
元器件交易网
HT78XXSeries
500mATinyPower
TM
LDO
Features
·
Outputvoltageranges:Fixedrangeof1.8V,2.5V,
·
Lowquiescentcurrent:5mA(typ.)
·
Currentlimiting
·
Over-temperatureshutdown
·
SOT-89,TO-92Packages
2.7V,3.0V,3.3V,5.0Vtype.
·
Highlyaccuracy:±2%
·
Lowvoltagedrop:360mV(typ.),
V
OUT
=5.0Vat500mA
·
Guaranteedoutputcurrent:500mA
Applications
·
Batterypoweredsystems
·
PersonalDigitalAssistants
·
Peripheralcards
·
PCMCIAcards
·
PersonalCommunicationEquipment
GeneralDescription
TheHT78XXseriesofpositive,linearregulatorsfea-
tureslowquiescentcurrent(5mAtyp.)withlowdropout
voltage,
devicesarecapableofsupplying500mAofoutputcur-
rentcontinuously.
Theyareavailablewithseveralfixedoutputvoltages
ghdesignedprimarily
asfixedvoltageregulators,thesedevicescanbeused
withexternalcomponentstoobtainvariablevoltages
andcurrents.
TheseruggeddeviceshaveThermalShutdownand
CurrentLimitingtopreventdevicefailureunderthe
²Worst²ofoperatingconditions.
SelectionTable
PartNo.
HT7818
HT7825
HT7827
HT7830
HT7833
HT7850
OutputVoltage
1.8V
2.5V
2.7V
3.0V
3.3V
5.0V
±2%
SOT-89
TO-92
TolerancePackage
BlockDiagram
Rev.1.001March2,2007
元器件交易网
HT78XXSeries
PinAssignment
AbsoluteMaximumRatings*
upto8.5V
-40°Cto85°C
Note:esexceedingtherangespecifiedunder²AbsoluteMaximumRatings²may
onaloperationofthisdeviceatotherconditionsbeyondthoselisted
inthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffectdevicereliability.
²*²AbsolutemingRatingsin-
dicateconditionsforwhichthedeviceisintendedtobefunctional,butdonotguaranteespecificperformancelimits.
Theguaranteedspecificationsapplyonlyforthetestconditionslisted.
-50°Cto125°C
ThermalInformation
SymbolParameter
ThermalResistance
(JunctiontoAmbient)
(Assumenoambientairflow,
noheatsink)
PowerDissipation
Package
SOT-89
TO-92
SOT-89
TO-92
Max.
200
200
0.50
0.50
Unit
°C/W
°C/W
W
W
q
JA
P
D
Note:P
D
ismeasuredatTa=25°C
Rev.1.002March2,2007
元器件交易网
HT78XXSeries
ElectricalCharacteristics
Symbol
V
IN
DV
OUT
I
SS
DV
LOAD
V
DROP
DV
LINE
I
LIM
T
j
=25°C,V
IN
=V
OUT
+1.0V,I
O
=1mA,unlessotherwisespecified
TestConditions
¾
¾
I
O
=0mA
1mA£I
OUT
£500mA
DV
OUT
=2%
I
OUT
=500mA
V
O
£1.8V
2.5V£V
O
£2.7V
3.0V£V
O
£5.0V
Min.
¾
-2
¾
¾
¾
¾
¾
¾
500
¾
Typ.
¾
¾
5
0.004
800
500
360
0.2
¾
±0.8
Max.
8
2
7
0.008
1200
650
500
0.3
¾
¾
%/V
mA
mV/°C
mV
Unit
V
%
mA
%/mA
Parameter
InputVoltage
OutputVoltageTolerance
QuiescentCurrent
LoadRegulation(Note1)
DropoutVoltage(Note2)
LineRegulation
CurrentLimit(Note3)
TemperatureCoefficient
V
OUT
+1.0V£V
IN
£8.0V
DV
OUT
=10%
-40°C Note:gulationismeasuredataconstantjunctiontemperature,usingpulsetestingwithalowONtimeand issipationisdeterminedbytheinput/output teedmaximumpowerdissipationwillnotbeavailableover thefullinput/imumallowablepowerdissipationatanyambienttemperatureis P D =(T J(MAX) -Ta)/q JA . tvoltageisdefinedastheinputvoltageminustheoutputvoltagethatproducesa2%changeinthe outputvoltagefromthevalueatV IN =V OUT +1Vwithafixedload. tlimitismeasuredbypulsingforashorttime. ApplicationCircuits BasicCircuits TypicalApplicationCircuits · Highoutputcurrentpositivevoltageregulator Rev.1.003March2,2007 元器件交易网 HT78XXSeries · IncreasedOutputvoltageCircuit V OUT =V XX (1+ · DualSupplyCircuit R2 )+I SS R2 R1 V OUT1 =V XX2 +V XX1 V OUT2 =V XX2 · TrackingVoltageRegulator -V O =V O x R A R B Rev.1.004March2,2007 元器件交易网 HT78XXSeries PackageInformation 3-PinSOT-89OutlineDimensions Symbol A B C D E F G H I J Dimensionsinmil Min. 173 64 90 35 155 14 17 ¾ 55 14 Nom. ¾ ¾ ¾ ¾ ¾ ¾ ¾ 59 ¾ ¾ Max. 181 72 102 47 167 19 22 ¾ 63 17 Rev.1.005March2,2007 元器件交易网 HT78XXSeries 3-PinTO-92OutlineDimensions Symbol A B C D E F G H I a Dimensionsinmil Min. 170 170 500 11 90 45 45 130 8 4° Nom. ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ Max. 200 200 ¾ 20 110 55 65 160 18 6° Rev.1.006March2,2007 元器件交易网 HT78XXSeries ProductTapeandReelSpecifications ReelDimensions SOT-89 Symbol A B C D T1 T2 Description ReelOuterDiameter ReelInnerDiameter SpindleHoleDiameter KeySlitWidth SpaceBetweenFlange ReelThickness Dimensionsinmm 180±1.0 62±1.5 12.75+0.15 1.9±0.15 12.4+0.2 17-0.4 Rev.1.007March2,2007 元器件交易网 HT78XXSeries TO-92ReelDimensions(Unit:mm) Rev.1.008March2,2007 元器件交易网 HT78XXSeries CarrierTapeDimensions SOT-89 Symbol W P E F D D1 P0 P1 A0 B0 K0 t C Description CarrierTapeWidth CavityPitch PerforationPosition CavitytoPerforation(WidthDirection) PerforationDiameter CavityHoleDiameter PerforationPitch CavitytoPerforation(LengthDirection) CavityLength CavityWidth CavityDepth CarrierTapeThickness CoverTapeWidth Dimensionsinmm 12.0+0.3 -0.1 8.0±0.1 1.75±0.1 5.5±0.05 1.5+0.1 1.5+0.1 4.0±0.1 2.0±0.10 4.8±0.1 4.5±0.1 1.8±0.1 0.30±0.013 9.3 Rev.1.009March2,2007 元器件交易网 HT78XXSeries TO-92CarrierTapeDimensions TO-92 Symbol I1 P P 0 P 2 F 1 F 2 Dh W W 0 W 1 W 2 H 0 H 1 D 0 t H Note: Description TapedLeadLength ComponentPitch PerforationPitch ComponenttoPerforation(LengthDirection) LeadSpread LeadSpread ComponentAlignment CarrierTapeWidth Hold-downTapeWidth PerforationPosition Hold-downTapePosition LeadClinchHeight ComponentHeight PerforationDiameter TapedLeadThickness ComponentBaseHeight Dimensionsinmm (2.5) 12.7±1.0 12.7±0.3 6.35±0.4 2.5+0.4 -0.1 2.5+0.4 -0.1 0±0.1 18.0+1.0 -0.5 6.0±0.5 9.0±0.5 (0.5) 16.0±0.5 Lessthan24.7 4.0±0.2 0.7±0.2 19.0±0.5 Thicknesslessthan0.38±0.05mm~0.5mm P0Accumulatedpitchtolerance:±1mm/20pitches. ()Bracketedfiguresareforconsultationonly Rev.1.0010March2,2007 元器件交易网 HT78XXSeries HoltekSemiconductorInc.(Headquarters) No.3,,SciencePark,Hsinchu,Taiwan Tel:886-3-563-1999 Fax:886-3-563-1189 HoltekSemiconductorInc.(TaipeiSalesOffice) 4F-2,No.3-2,YuanQuSt.,NankangSoftwarePark,Taipei115,Taiwan Tel:886-2-2655-7070 Fax:886-2-2655-7373 Fax:886-2-2655-7383(Internationalsaleshotline) HoltekSemiconductorInc.(ShanghaiSalesOffice) 7thFloor,Building2,No.889,YiShanRd.,Shanghai,China200233 Tel:86-21-6485-5560 Fax:86-21-6485-0313 HoltekSemiconductorInc.(ShenzhenSalesOffice) 5/F,UnitA,ProductivityBuilding,CrossofScienceM3rdRoadandGaoxinM2ndRoad,SciencePark,NanshanDistrict, Shenzhen,China518057 Tel:86-755-8616-9908,86-755-8616-9308 Fax:86-755-8616-9722 HoltekSemiconductorInc.(BeijingSalesOffice) Suite1721,JinyuTower,A129WestXuanWuMenStreet,XichengDistrict,Beijing,China100031 Tel:86-10-6641-0030,86-10-6641-7751,86-10-6641-7752 Fax:86-10-6641-0125 HoltekSemiconductorInc.(ChengduSalesOffice) 709,Building3,ChampagnePlaza,No.97DongdaStreet,Chengdu,Sichuan,China610016 Tel:86-28-6653-6590 Fax:86-28-6653-6591 HoltekSemiconductor(USA),Inc.(NorthAmericaSalesOffice) 46729FremontBlvd.,Fremont,CA94538 Tel:1-510-252-9880 Fax:1-510-252-9885 CopyrightÓ2007byHOLTEKSEMICONDUCTORINC. Theinformationappear,Holtekas- sumlicationsmentionedhereinareused solelyforthepurposeofillustrationandHoltekmakesnowarrantyorrepresentationthatsuchapplicationswillbesuitable withoutfurthermodification,norrecommendstheuseofitsproductsforapplicationthatmaypresentarisktohumanlife ¢sproductsarenotauthorizedforuseascriticalcomponentsinlifesupportdevices mostup-to-dateinformation, pleasevisitourwebsiteat. Rev.1.0011March2,2007
2024年10月30日发(作者：昝南蓉)
元器件交易网
HT78XXSeries
500mATinyPower
TM
LDO
Features
·
Outputvoltageranges:Fixedrangeof1.8V,2.5V,
·
Lowquiescentcurrent:5mA(typ.)
·
Currentlimiting
·
Over-temperatureshutdown
·
SOT-89,TO-92Packages
2.7V,3.0V,3.3V,5.0Vtype.
·
Highlyaccuracy:±2%
·
Lowvoltagedrop:360mV(typ.),
V
OUT
=5.0Vat500mA
·
Guaranteedoutputcurrent:500mA
Applications
·
Batterypoweredsystems
·
PersonalDigitalAssistants
·
Peripheralcards
·
PCMCIAcards
·
PersonalCommunicationEquipment
GeneralDescription
TheHT78XXseriesofpositive,linearregulatorsfea-
tureslowquiescentcurrent(5mAtyp.)withlowdropout
voltage,
devicesarecapableofsupplying500mAofoutputcur-
rentcontinuously.
Theyareavailablewithseveralfixedoutputvoltages
ghdesignedprimarily
asfixedvoltageregulators,thesedevicescanbeused
withexternalcomponentstoobtainvariablevoltages
andcurrents.
TheseruggeddeviceshaveThermalShutdownand
CurrentLimitingtopreventdevicefailureunderthe
²Worst²ofoperatingconditions.
SelectionTable
PartNo.
HT7818
HT7825
HT7827
HT7830
HT7833
HT7850
OutputVoltage
1.8V
2.5V
2.7V
3.0V
3.3V
5.0V
±2%
SOT-89
TO-92
TolerancePackage
BlockDiagram
Rev.1.001March2,2007
元器件交易网
HT78XXSeries
PinAssignment
AbsoluteMaximumRatings*
upto8.5V
-40°Cto85°C
Note:esexceedingtherangespecifiedunder²AbsoluteMaximumRatings²may
onaloperationofthisdeviceatotherconditionsbeyondthoselisted
inthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffectdevicereliability.
²*²AbsolutemingRatingsin-
dicateconditionsforwhichthedeviceisintendedtobefunctional,butdonotguaranteespecificperformancelimits.
Theguaranteedspecificationsapplyonlyforthetestconditionslisted.
-50°Cto125°C
ThermalInformation
SymbolParameter
ThermalResistance
(JunctiontoAmbient)
(Assumenoambientairflow,
noheatsink)
PowerDissipation
Package
SOT-89
TO-92
SOT-89
TO-92
Max.
200
200
0.50
0.50
Unit
°C/W
°C/W
W
W
q
JA
P
D
Note:P
D
ismeasuredatTa=25°C
Rev.1.002March2,2007
元器件交易网
HT78XXSeries
ElectricalCharacteristics
Symbol
V
IN
DV
OUT
I
SS
DV
LOAD
V
DROP
DV
LINE
I
LIM
T
j
=25°C,V
IN
=V
OUT
+1.0V,I
O
=1mA,unlessotherwisespecified
TestConditions
¾
¾
I
O
=0mA
1mA£I
OUT
£500mA
DV
OUT
=2%
I
OUT
=500mA
V
O
£1.8V
2.5V£V
O
£2.7V
3.0V£V
O
£5.0V
Min.
¾
-2
¾
¾
¾
¾
¾
¾
500
¾
Typ.
¾
¾
5
0.004
800
500
360
0.2
¾
±0.8
Max.
8
2
7
0.008
1200
650
500
0.3
¾
¾
%/V
mA
mV/°C
mV
Unit
V
%
mA
%/mA
Parameter
InputVoltage
OutputVoltageTolerance
QuiescentCurrent
LoadRegulation(Note1)
DropoutVoltage(Note2)
LineRegulation
CurrentLimit(Note3)
TemperatureCoefficient
V
OUT
+1.0V£V
IN
£8.0V
DV
OUT
=10%
-40°C Note:gulationismeasuredataconstantjunctiontemperature,usingpulsetestingwithalowONtimeand issipationisdeterminedbytheinput/output teedmaximumpowerdissipationwillnotbeavailableover thefullinput/imumallowablepowerdissipationatanyambienttemperatureis P D =(T J(MAX) -Ta)/q JA . tvoltageisdefinedastheinputvoltageminustheoutputvoltagethatproducesa2%changeinthe outputvoltagefromthevalueatV IN =V OUT +1Vwithafixedload. tlimitismeasuredbypulsingforashorttime. ApplicationCircuits BasicCircuits TypicalApplicationCircuits · Highoutputcurrentpositivevoltageregulator Rev.1.003March2,2007 元器件交易网 HT78XXSeries · IncreasedOutputvoltageCircuit V OUT =V XX (1+ · DualSupplyCircuit R2 )+I SS R2 R1 V OUT1 =V XX2 +V XX1 V OUT2 =V XX2 · TrackingVoltageRegulator -V O =V O x R A R B Rev.1.004March2,2007 元器件交易网 HT78XXSeries PackageInformation 3-PinSOT-89OutlineDimensions Symbol A B C D E F G H I J Dimensionsinmil Min. 173 64 90 35 155 14 17 ¾ 55 14 Nom. ¾ ¾ ¾ ¾ ¾ ¾ ¾ 59 ¾ ¾ Max. 181 72 102 47 167 19 22 ¾ 63 17 Rev.1.005March2,2007 元器件交易网 HT78XXSeries 3-PinTO-92OutlineDimensions Symbol A B C D E F G H I a Dimensionsinmil Min. 170 170 500 11 90 45 45 130 8 4° Nom. ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ Max. 200 200 ¾ 20 110 55 65 160 18 6° Rev.1.006March2,2007 元器件交易网 HT78XXSeries ProductTapeandReelSpecifications ReelDimensions SOT-89 Symbol A B C D T1 T2 Description ReelOuterDiameter ReelInnerDiameter SpindleHoleDiameter KeySlitWidth SpaceBetweenFlange ReelThickness Dimensionsinmm 180±1.0 62±1.5 12.75+0.15 1.9±0.15 12.4+0.2 17-0.4 Rev.1.007March2,2007 元器件交易网 HT78XXSeries TO-92ReelDimensions(Unit:mm) Rev.1.008March2,2007 元器件交易网 HT78XXSeries CarrierTapeDimensions SOT-89 Symbol W P E F D D1 P0 P1 A0 B0 K0 t C Description CarrierTapeWidth CavityPitch PerforationPosition CavitytoPerforation(WidthDirection) PerforationDiameter CavityHoleDiameter PerforationPitch CavitytoPerforation(LengthDirection) CavityLength CavityWidth CavityDepth CarrierTapeThickness CoverTapeWidth Dimensionsinmm 12.0+0.3 -0.1 8.0±0.1 1.75±0.1 5.5±0.05 1.5+0.1 1.5+0.1 4.0±0.1 2.0±0.10 4.8±0.1 4.5±0.1 1.8±0.1 0.30±0.013 9.3 Rev.1.009March2,2007 元器件交易网 HT78XXSeries TO-92CarrierTapeDimensions TO-92 Symbol I1 P P 0 P 2 F 1 F 2 Dh W W 0 W 1 W 2 H 0 H 1 D 0 t H Note: Description TapedLeadLength ComponentPitch PerforationPitch ComponenttoPerforation(LengthDirection) LeadSpread LeadSpread ComponentAlignment CarrierTapeWidth Hold-downTapeWidth PerforationPosition Hold-downTapePosition LeadClinchHeight ComponentHeight PerforationDiameter TapedLeadThickness ComponentBaseHeight Dimensionsinmm (2.5) 12.7±1.0 12.7±0.3 6.35±0.4 2.5+0.4 -0.1 2.5+0.4 -0.1 0±0.1 18.0+1.0 -0.5 6.0±0.5 9.0±0.5 (0.5) 16.0±0.5 Lessthan24.7 4.0±0.2 0.7±0.2 19.0±0.5 Thicknesslessthan0.38±0.05mm~0.5mm P0Accumulatedpitchtolerance:±1mm/20pitches. ()Bracketedfiguresareforconsultationonly Rev.1.0010March2,2007 元器件交易网 HT78XXSeries HoltekSemiconductorInc.(Headquarters) No.3,,SciencePark,Hsinchu,Taiwan Tel:886-3-563-1999 Fax:886-3-563-1189 HoltekSemiconductorInc.(TaipeiSalesOffice) 4F-2,No.3-2,YuanQuSt.,NankangSoftwarePark,Taipei115,Taiwan Tel:886-2-2655-7070 Fax:886-2-2655-7373 Fax:886-2-2655-7383(Internationalsaleshotline) HoltekSemiconductorInc.(ShanghaiSalesOffice) 7thFloor,Building2,No.889,YiShanRd.,Shanghai,China200233 Tel:86-21-6485-5560 Fax:86-21-6485-0313 HoltekSemiconductorInc.(ShenzhenSalesOffice) 5/F,UnitA,ProductivityBuilding,CrossofScienceM3rdRoadandGaoxinM2ndRoad,SciencePark,NanshanDistrict, Shenzhen,China518057 Tel:86-755-8616-9908,86-755-8616-9308 Fax:86-755-8616-9722 HoltekSemiconductorInc.(BeijingSalesOffice) Suite1721,JinyuTower,A129WestXuanWuMenStreet,XichengDistrict,Beijing,China100031 Tel:86-10-6641-0030,86-10-6641-7751,86-10-6641-7752 Fax:86-10-6641-0125 HoltekSemiconductorInc.(ChengduSalesOffice) 709,Building3,ChampagnePlaza,No.97DongdaStreet,Chengdu,Sichuan,China610016 Tel:86-28-6653-6590 Fax:86-28-6653-6591 HoltekSemiconductor(USA),Inc.(NorthAmericaSalesOffice) 46729FremontBlvd.,Fremont,CA94538 Tel:1-510-252-9880 Fax:1-510-252-9885 CopyrightÓ2007byHOLTEKSEMICONDUCTORINC. Theinformationappear,Holtekas- sumlicationsmentionedhereinareused solelyforthepurposeofillustrationandHoltekmakesnowarrantyorrepresentationthatsuchapplicationswillbesuitable withoutfurthermodification,norrecommendstheuseofitsproductsforapplicationthatmaypresentarisktohumanlife ¢sproductsarenotauthorizedforuseascriticalcomponentsinlifesupportdevices mostup-to-dateinformation, pleasevisitourwebsiteat. Rev.1.0011March2,2007