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l7805cv-stm

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L7800SERIES

POSITIVEVOLTAGEREGULATORS

sss

OUTPUTCURRENTUPTO1.5A

OUTPUTVOLTAGESOF5;5.2;6;8;8.5;9;12;15;18;24V

THERMALOVERLOADPROTECTIONSHORTCIRCUITPROTECTION

OUTPUTTRANSITIONSOAPROTECTION

DESCRIPTION

TheL7800seriesofthree-terminalpositiveregulatorsisavailableinTO-220ISOWATT220TO-3andD2PAKpackagesandseveralfixedoutputvoltages,makingitusefulinawiderangeofapplications.Theseregulatorscanprovidelocalon-cardregulation,eliminatingthedistributionproblemsassociatedwithsinglepointregulation.Eachtypeemploysinternalcurrentlimiting,thermalshut-downandsafeareaprotection,makingitessentiallyindestructible.Ifadequateheatsinkingisprovided,theycandeliverover1Aoutputcurrent.Althoughdesignedprimarilyasfixedvoltageregulators,thesedevicescanbeusedwithexternalcomponentstoobtainadjustablevoltagesandcurrents.

TO-3

D2PAK

TO-220ISOWATT220

BLOCKDIAGRAM

November19991/25

L7800

ABSOLUTEMAXIMUMRATINGS

SymbolViIoPtotTopTstg

Parameter

DCInputVoltage(forVO=5to18V)

(forVO=20,24V)OutputCurrentPowerDissipation

OperatingJunctionTemperatureRange(forL7800)

(forL7800C)StorageTemperatureRange

Value30

InternallylimitedInternallylimited

-55to1500to150-65to150

ooo

UnitVV

CCC

THERMALDATA

Symbol

Parameter

DPAK362.5

TO-220350

ISOWATT220

460

TO-3435

Unit

Rthj-caseThermalResistanceJunction-caseMaxRthj-ambThermalResistanceJunction-ambientMaxC/WC/W

CONNECTIONDIAGRAMANDORDERINGNUMBERS(topview)

TO-220&ISOWATT220DPAK

TO-3

TypeL7805L7805CL7852CL7806L7806CL7808L7808CL7885CL7809CL7812L7812CL7815L7815CL7818L7818CL7820L7820CL7824L7824C

TO-220L7805CVL7852CVL7806CVL7808CVL7885CVL7809CVL7812CVL7815CVL7818CVL7820CVL7824CV

DPAK(*)L7805CD2TL7852CD2TL7806CD2TL7808CD2TL7885CD2TL7809CD2TL7812CD2TL7815CD2TL7818CD2TL7820CD2TL7824CD2T

ISOWATT220L7805CPL7852CPL7806CPL7808CPL7885CPL7809CPL7812CPL7815CPL7818CPL7820CPL7824CP

TO-3L7805TL7805CTL7852CTL7806TL7806CTL7808TL7808CTL7885CTL7809CTL7812TL7812CTL7815TL7815CTL7818TL7818CTL7820TL7820CTL7824TL7824CT

OutputVoltage

5V5V5.2V6V6V8V8V8.5V9V12V12V15V15V18V18V20V20V24V24V

(*)AVAILABLEINTAPEANDREELWITH”-TR”SUFFIX

2/25

L7800

APPLICATIONCIRCUIT

SCHEMATICDIAGRAM

3/25

L7800

TESTCIRCUITSFigure1:DCParameter

Figure2:LoadRegulation.

Figure3:RippleRejection.

4/25

L7800

ELECTRICALCHARACTERISTICSFORL7805(refertothetestcircuits,Tj=-55to150oC,Vi=10V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

OutputVoltageOutputVoltageLineRegulationLoadRegulationQuiescentCurrentQuiescentCurrentChangeQuiescentCurrentChangeOutputVoltageDriftOutputNoiseVoltageSupplyVoltageRejectionDropoutVoltageOutputResistanceShortCircuitCurrentShortCircuitPeakCurrent

Tj=25oCIo=5mAto1AVi=8to20VVi=7to25VVi=8to12V

Po≤15W

TestConditions

Min.4.84.65

Typ.5531

Max.5.25.3550251002560.50.8

0.6

217

Tj=25oC

1.3

0.752.2

1.23.32.5

UnitVVmVmVmVmVmAmAmAmV/oCµV/VOdBVmΩAA

Tj=25oCTj=25oC

Io=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=8to25VIo=5mA

B=10Hzto100KHzTj=25oCVi=8to18VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

ELECTRICALCHARACTERISTICSFORL7806(refertothetestcircuits,Tj=-55to150oC,Vi=15V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25CIo=5mAto1AVi=9to21VVi=8to25VVi=9to13V

Po≤15W

TestConditionsMin.5.755.65

Typ.66

Max.6.256.356030

UnitVVmVmVmVmVmAmAmAmV/C

Tj=25oCTj=25oC

Tj=25CTj=25oC

Io=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=9to25VIo=5mA

1003060.50.8

0.7

2190.75

1.3

2.2

2.51.23.3

B=10Hzto100KHzTj=25oCVi=9to19VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

f=120HzTj=25oC

µV/VOdBVmΩAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

5/25

L7800

ELECTRICALCHARACTERISTICSFORL7808(refertothetestcircuits,Tj=-55to150oC,Vi=14V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oC

Io=5mAto1APo≤15WVi=11.5to23V

Vi=10.5to25VTj=25oCVi=11to17VTj=25oCIo=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=11.5to25VIo=5mA

B=10Hzto100KHzTj=25oCVi=11.5to21.5VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

1.3

f=120Hz

2160.752.2

1.23.32.5

Tj=25oC

TestConditionsMin.7.77.6

Typ.88

Max.8.38.480401004060.50.8

UnitVVmVmVmVmVmAmAmAmV/oCµV/VOdBVmΩAA

Tj=25oCTj=25oC

ELECTRICALCHARACTERISTICSFORL7812(refertothetestcircuits,Tj=-55to150oC,Vi=19V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25C

Io=5mAto1APo≤15WVi=15.5to27V

Vi=14.5to30VTj=25oCVi=16to22VTj=25oCIo=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=15to30VIo=5mA

B=10Hzto100KHzTj=25oCVi=15to25VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

1.3

f=120Hz

2180.752.2

1.23.32.5

Tj=25oC

1.5

Tj=25CTj=25oC

TestConditionsMin.11.511.4

Typ.1212

Max.12.512.6120601006060.50.8

UnitVVmVmVmVmVmAmAmAmV/CµV/VOdBVmΩAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

6/25

L7800

ELECTRICALCHARACTERISTICSFORL7815(refertothetestcircuits,Tj=-55to150oC,Vi=23V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oC

Io=5mAto1APo≤15WVi=18.5to30V

Vi=17.5to30VTj=25oCVi=20to26VTj=25oCIo=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=18.5to30VIo=5mA

B=10Hzto100KHzTj=25oCVi=18.5to28.5VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

1.3

f=120Hz

2190.752.2

1.23.32.5

Tj=25oC

1.8

TestConditionsMin.14.414.25

Typ.1515

Max.15.615.75150751507560.50.8

UnitVVmVmVmVmVmAmAmAmV/oCµV/VOdBVmΩAA

Tj=25oCTj=25oC

ELECTRICALCHARACTERISTICSFORL7818(refertothetestcircuits,Tj=-55to150oC,Vi=26V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25CIo=5mAto1AVi=22to33VVi=21to33VVi=24to30V

Po≤15WTj=25oCTj=25oC

Tj=25CTj=25oC

TestConditionsMin.17.317.1

Typ.1818

Max.18.718.9180901809060.50.8

UnitVVmVmVmVmVmAmAmAmV/C

Io=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=22to33VIo=5mA

2.3

222

Tj=25oC

1.3

0.752.2

1.23.32.5

B=10Hzto100KHzTj=25oCVi=22to32VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

µV/VOdBVmΩAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

7/25

L7800

ELECTRICALCHARACTERISTICSFORL7820(refertothetestcircuits,Tj=-55to150oC,Vi=28V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oCIo=5mAto1AVi=24to35V

Po≤15W

TestConditions

Min.19.219

Typ.2020

Max.20.82120010020010060.50.8

2.5

224

Tj=25oC

1.3

0.752.2

1.23.32.5

UnitVVmVmVmVmVmAmAmAmV/oCµV/VOdBVmΩAA

Vi=22.5to35VTj=25oCVi=26to32VTj=25oCIo=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=24to35VIo=5mA

B=10Hzto100KHzTj=25oCVi=24to35VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

Tj=25oCTj=25oC

ELECTRICALCHARACTERISTICSFORL7824(refertothetestcircuits,Tj=-55to150oC,Vi=33V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25CIo=5mAto1AVi=28to38VVi=27to38VVi=30to36V

Po≤15WTj=25oCTj=25oC

Tj=25CTj=25oC

TestConditionsMin.2322.8

Typ.2424

Max.2525.224012024012060.50.8

UnitVVmVmVmVmVmAmAmAmV/C

Io=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=28to38VIo=5mA

228

Tj=25oC

1.3

0.752.2

1.23.32.5

B=10Hzto100KHzTj=25oCVi=28to38VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

µV/VOdBVmΩAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

8/25

L7800

ELECTRICALCHARACTERISTICSFORL7805C(refertothetestcircuits,Tj=0to125oC,Vi=10V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oCIo=5mAto1AVi=7to20VVi=7to25VVi=8to12V

Po≤15W

TestConditions

Min.4.84.75

Typ.5531

Max.5.25.25100501005080.50.8

-1.140

217

Tj=25oC

7502.2

UnitVVmVmVmVmVmAmAmAmV/oCµVdBVmΩmAA

Tj=25oCTj=25oC

Io=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=7to25VIo=5mA

B=10Hzto100KHzTj=25oCVi=8to18VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

ELECTRICALCHARACTERISTICSFORL7852C(refertothetestcircuits,Tj=0to125oC,Vi=10V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25CIo=5mAto1AVi=8to20VVi=7to25VVi=8to12V

Po≤15W

TestConditionsMin.5.04.95

Typ.5.25.231

Max.5.45.45105521055280.51.3

UnitVVmVmVmVmVmAmAmAmV/CµVdBVmΩmAA

Tj=25oCTj=25oC

Tj=25CTj=25oC

Io=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=7to25VIo=5mA

-1.042

217

Tj=25oC

7502.2

B=10Hzto100KHzTj=25oCVi=8to18VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

9/25

L7800

ELECTRICALCHARACTERISTICSFORL7806C(refertothetestcircuits,Tj=0to125oC,Vi=11V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oCIo=5mAto1AVi=8to21VVi=8to25VVi=9to13V

Po≤15W

TestConditions

Min.5.755.7

Typ.66

Max.6.256.3120601206080.51.3

-0.845

219

Tj=25oC

5502.2

UnitVVmVmVmVmVmAmAmAmV/oCµVdBVmΩmAA

Tj=25oCTj=25oC

Io=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=8to25VIo=5mA

B=10Hzto100KHzTj=25oCVi=9to19VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

ELECTRICALCHARACTERISTICSFORL7808C(refertothetestcircuits,Tj=0to125oC,Vi=14V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25C

Io=5mAto1APo≤15WVi=10.5to25V

Vi=10.5to25VTj=25oCVi=11to17VTj=25oCIo=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=10.5to25VIo=5mA

B=10Hzto100KHzTj=25oCVi=11.5to21.5VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

f=120Hz

21502.2

Tj=25oC

-0.852

Tj=25CTj=25oC

TestConditionsMin.7.77.6

Typ.88

Max.8.38.4160801608080.51

UnitVVmVmVmVmVmAmAmAmV/CµVdBVmΩmAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

10/25

L7800

ELECTRICALCHARACTERISTICSFORL7885C(refertothetestcircuits,Tj=0to125oC,Vi=14.5V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oCIo=5mAto1AVi=11to26V

Po≤15W

TestConditions

Min.8.28.1

Typ.8.58.5

Max.8.88.9160801608080.51

-0.855

216

Tj=25oC

4502.2

UnitVVmVmVmVmVmAmAmAmV/oCµVdBVmΩmAA

Vi=11to27VTj=25oCVi=11.5to17.5VTj=25oCIo=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=11to27VIo=5mA

B=10Hzto100KHzTj=25oCVi=12to22VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

Tj=25oCTj=25oC

ELECTRICALCHARACTERISTICSFORL7809C(refertothetestcircuits,Tj=0to125oC,Vi=15V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25C

Io=5mAto1APo≤15WVi=11.5to26V

Vi=11.5to26VTj=25oCVi=12to18VTj=25oCIo=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=11.5to26VIo=5mA

B=10Hzto100KHzTj=25oCVi=12to23VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

f=120Hz

2174002.2

Tj=25oC

-1.070

Tj=25CTj=25oC

TestConditionsMin.8.658.55

Typ.99

Max.9.359.45180901809080.51

UnitVVmVmVmVmVmAmAmAmV/CµVdBVmΩmAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

11/25

L7800

ELECTRICALCHARACTERISTICSFORL7812C(refertothetestcircuits,Tj=0to125oC,Vi=19V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oC

Io=5mAto1APo≤15WVi=14.5to27V

Vi=14.5to30VTj=25oCVi=16to22VTj=25oCIo=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=14.5to30VIo=5mA

B=10Hzto100KHzTj=25oCVi=15to25VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

f=120Hz

2183502.2

Tj=25oC

-175

TestConditionsMin.11.511.4

Typ.1212

Max.12.512.624012024012080.51

UnitVVmVmVmVmVmAmAmAmV/oCµVdBVmΩmAA

Tj=25oCTj=25oC

ELECTRICALCHARACTERISTICSFORL7815C(refertothetestcircuits,Tj=0to125oC,Vi=23V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25C

Io=5mAto1APo≤15WVi=17.5to30V

Vi=17.5to30VTj=25oCVi=20to26VTj=25oCIo=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=17.5to30VIo=5mA

B=10Hzto100KHzTj=25oCVi=18.5to28.5VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

f=120Hz

2192302.1

Tj=25oC

-190

Tj=25CTj=25oC

TestConditionsMin.14.414.25

Typ.1515

Max.15.615.7530015030015080.51

UnitVVmVmVmVmVmAmAmAmV/CµVdBVmΩmAA

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

12/25

L7800

ELECTRICALCHARACTERISTICSFORL7818C(refertothetestcircuits,Tj=0to125oC,Vi=26V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oCIo=5mAto1AVi=21to33VVi=21to33VVi=24to30V

Po≤15WTj=25oCTj=25oC

Tj=25oCTj=25oC

TestConditions

Min.17.317.1

Typ.1818

Max.18.718.936018036018080.51

-1110

222

Tj=25oC

2002.1

UnitVVmVmVmVmVmAmAmAmV/oCµVdBVmΩmAA

Io=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=21to33VIo=5mA

B=10Hzto100KHzTj=25oCVi=22to32VIo=1Af=1KHzVi=35VTj=25oC

f=120HzTj=25oC

ELECTRICALCHARACTERISTICSFORL7820C(refertothetestcircuits,Tj=0to125oC,Vi=28V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25CIo=5mAto1AVi=23to35V

Po≤15W

TestConditionsMin.19.219

Typ.2020

Max.20.82140020040020080.51

UnitVVmVmVmVmVmAmAmAmV/CµVdBVmΩmAA

Vi=22.5to35VTj=25oCVi=26to32VTj=25oCIo=5to1500mAIo=250to750mATj=25oCIo=5to1000mAVi=23to35VIo=5mA

B=10Hzto100KHzTj=25oCVi=24to35VIo=1Af=1KHzVi=35VTj=25oC

Tj=25oC

f=120Hz

2241802.1

Tj=25oC

-1150

Tj=25CTj=25oC

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

13/25

L7800

ELECTRICALCHARACTERISTICSFORL7824C(refertothetestcircuits,Tj=0to125oC,Vi=33V,Io=500mA,Ci=0.33µF,Co=0.1µFunlessotherwisespecified)

SymbolVoVo∆Vo*∆Vo*Id∆Id∆Id∆Vo∆TeNSVRVdRoIscIscp

Parameter

Tj=25oCIo=5mAto1AVi=27to38VVi=27to38VVi=30to36V

Po≤15WTj=25oCTj=25oC

Tj=25CTj=25oC

TestConditionsMin.2322.8

Typ.2424

Max.2525.248024048024080.51

UnitVVmVmVmVmVmAmAmAmV/oCµVdBVmΩmAA

Io=5to1500mAIo=250to750mATj=25CIo=5to1000mAVi=27to38VIo=5mA

-1.5170

228

Tj=25oC

1502.1

B=10Hzto100KHzTj=25oCVi=28to38VIo=1Af=1KHzVi=35VTj=25C

f=120Hz

Tj=25oC

*Loadandlineregulationarespecifiedatconstantjunctiontemperature.ChangesinVoduetoheatingeffectsmustbetakenintoaccountseparately.Pulcetestingwithlowdutycycleisused.

14/25

L7800

Figure4:DropoutVoltagevs.Junction

Temperature.

Figure5:PeakOutputCurrentvs.Input/output

DifferentialVoltage.

Figure6:SupplyVoltageRejectionvs.

Frequency.Figure7:OutputVoltagevs.Junction

Temperature.

Figure8:OutputImpedancevs.Frequency.

Figure9:QuiescentCurrentvs.Junction

Temperature.

15/25

L7800

Figure10:LoadTransientResponse.

Figure11:LineTransientResponse.

Figure12:QuiescentCurrentvs.Input

Voltage.

Figure13:FixedOutputRegulator.Figure14:CurrentRegulator.

IO=

VXX+IdR1

NOTE:

1.Tospecifyanoutputvoltage,substitutevoltagevaluefor”XX”.2.Althoughnooutputcapacitorisneedforstability,itdoesimprovetransientresponse.

3.Requiredifcregulatorislocateanappreciabledistancefrompowersupplyfilter.

16/25

L7800

Figure15:CircuitforIncreasingOutput

Voltage.

Figure16:AdjustableOutputRegulator

(7to30V).

IR1≥5IdVO=VXX(1+

)+IdR2R1

Figure17:0.5to10VRegulator.Figure18:HighCurrentVoltageRegulator.

R1=

VBEQ1IREQ−

IQ1βQ1

VO=VXXR4R1

IO=IREG+Q1(IREG−

VBEQ1

)

17/25

L7800

Figure19:HighOutputCurrentwithShort

CircuitProtection.

Figure20:TrackingVoltageRegulator.

RSC=

VBEQ2ISCFigure21:SplitPowerSupply(±15V–1A).Figure22:NegativeOutputVoltageCircuit.

*Againstpotentiallatch-upproblems.

Figure23:SwitchingRegulator.Figure24:HighInputVoltageCircuit.

VIN=Vi-(VZ+VBE)

18/25

L7800

Figure25:HighInputVoltageCircuit.

Figure26:HighOutputVoltageRegulator.

Figure27:HighInputandOutputVoltage.

Figure28:ReducingPowerDissipationwith

DroppingResistor.

VO=VXX+VZ1

Vi(min)−VXX−VDROP(max)

IO(max)+Id(max)

Figure29:RemoteShutdown.

19/25

L7800

Figure30:PowerAMModulator(unityvoltage

gain,Io<1A).

Figure31:AdjustableOutputVoltagewith

TemperatureCompensation.

VO=VXX(1+

)+VBER1

NOTE:Thecircuitperformswellupto100KHz

NOTE:Q2isconnectedasadiodeinordertocompensatethevariationoftheQ1VBEwiththetemperature.Callowsaslowrise-timeoftheVo

Figure32:LightControllers(Vomin=Vxx+VBE).

VOfallswhenthelightgoesup

VOriseswhenthelightgoesup

Figure33:ProtectionagainstInputShort-circuit

withHighCapacitanceLoads.

Applicationwithhighcapacitanceloadsandanoutputvoltagegreaterthan6voltsneedanexternaldiode(seefig.33)toprotectthedeviceagainstinputshortcircuit.Inthiscasetheinputvoltagefallsrapidlywhiletheoutputvoltagedecreaseslowly.ThecapacitancedischrgesbymeansoftheBase-Emitterjunctionoftheseriespasstransistorintheregulator.Iftheenergyissufficentlyhigh,thetransistormaybedestroyed.Theexternaldiodeby-passesthecurrentfromtheICtoground.

20/25

L7800

TO-3(R)MECHANICALDATA

MIN.

ABCDEGNPRUV

30.10

3.88

10.916.9

26.24.0939.50

1.185

0.152

0.96

TYP.11.7

1.101.708.720.0

0.4290.665

1.0310.1611.555

0.037

MAX.

MIN.

inchTYP.0.460

0.0430.0660.3420.787MAX.

DIM.

UVONR

BP003N

21/25

EL7800

TO-220MECHANICALDATA

DIM.ACDD1EFF1F2GG1H2L2L4L5L6L7L9DIA.

13.02.6515.256.23.53.750.490.611.141.144.952.410.0

16.4

14.02.9515.756.63.933.85

0.5110.1040.6000.2440.1370.147

Emm

MIN.4.401.232.40

1.27

0.700.881.701.705.152.710.40

0.0190.0240.0440.0440.1940.0940.393

TYP.

MAX.4.601.322.72

MIN.0.1730.0480.094

inchTYP.

MAX.0.1810.0510.107

0.050

0.0270.0340.0670.0670.2030.1060.409

0.5

0.5510.1160.6200.2600.10.151

ACD1L2

F1DG1Dia.

F2FL5

G22/25

H2P011C

L7800

ISOWATT220MECHANICALDATA

DIM.

MIN.

ABDEFF1F2GG1HL2L3L4L6L7Ø

28.69.815.9934.42.52.50.40.751.151.1.952.410

30.610.616.49.33.2

1.1260.3850.6260.30.118

mmTYP.

MAX.4.62.72.750.711.71.75.22.710.4

MIN.0.1730.0980.0980.0150.0300.0450.0450.1950.0940.393

0.630

1.2040.4170.50.3660.126

inchTYP.

MAX.0.1810.1060.1080.0270.0390.0670.0670.2040.1060.409

ABL3

F1¯

FDG1EHF2123

P011G

G23/25

L7800

TO-263(D2PAK)MECHANICALDATA

MIN.

AA1BB2CC2DEGLL2L3

4.42.490.71.140.451.238.95104.88151.271.4

TYP.

MAX.4.62.690.931.70.61.369.3510.45.2815.851.41.75

MIN.0.1730.0980.0270.0440.0170.0480.3520.3930.1920.5900.0500.055

inchTYP.

MAX.0.1810.1060.0360.0670.0230.0530.3680.4090.2080.6240.0550.068

DIM.

A2DETAIL”A”

C2DETAIL”A”

P011P6/F

24/25

L7800

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