江蘇長(zhǎng)電CJA1117B-系列2421

JIANGSUCHANGJIANGELECTRONICSTECHNOLOGYCO.,LTD

1ALOWDROPOUTLINEARREGULATOR

CJA1117B-XXX

GENERALDESCRIPTION

TheCJA1117B-XXXisaseriesoflowdropoutthree-terminalregulatorswithadropoutof1.15V(typ.)

at1Aoutputcurrent.

TheCJA1117B-XXXseriesprovidescurrentlimitingandthermalshutdown.Itscircuitincludesa

trimmedbandgap.referencetoassureoutputvoltageaccuracytobewithin1.5%.Currentlimitistrimmed

toensurespecified.outputcurrentandcontrolledshort-circuitcurrent.On-chipthermalshutdown

providesprotectionagainstanycombinationofoverloadandambienttemperaturethatwouldcreate

excessivejunctiontemperature.

TheCJA1117B-XXXhasanadjustableversion,thatcanprovidetheoutputvoltagefrom1.25Vto5Vwith

only2externalresistors.

FEATURES

zLowDropoutVoltage:1.15V(typ.)at1AOutputCurrent

zTrimmedCurrentLimit

zOn-ChipThermalShutdown

zThree-TerminalAdjustableorFixed1.8V,2.5V,3.3V,5V

zOperationJunctionTemperature:0℃to125℃

APPLICATIONS

zPCMotherboard

zLCDMonitor

zGraphicCard

zDVD-VideoPlayer

zNIC/Switch

zTelecomModem

zADSLModem

zPrinterandOtherPeripheralEquipment

PACKAGEANDPINCONFIGURATIONS

SOT–89-3L

1.ADJ/GND

2.OUTPUT

3.IN

C,Sep,2013

ORDERINGINFORMATION

Package

OperatingJunctionTemperatureRange

PartNO.

CJA1117B-ADJ

CJA1117B-1.8

CJA1117B-2.5

CJA1117B-3.3

CJA1117B-5.0

SOT-89-3L

0to125℃

ABOSLUTEMAXIMUMRATINGS(Ta=25℃unlessotherwisenoted)

ParameterSymbol

Value

Unit

InputVoltage

Vi

Tj

20V

150

℃

MaximumJunctionTemperature

℃

℃/W

℃

StorageTemperature

Tstg

RθJA

TL

-55~+150

250

ThermalResistancefromJunctiontoAmbient

LeadTemperature(Soldering,10sec.)

260

V

ESDVoltage(MachineModel)

VESD

400

Note:Stressesgreaterthanthoselistedunder”AbsoluteMaximumRatings”maycausepermanent

damagetothedevice.Thesearestressratingsonly,andfunctionalofthedeviceattheseoranyother

conditionsbeyondthoseindicatedunder“RecommendedOperatingConditions”isnotimplied.Exposure

to“AbsoluteMaximumRatings”forextendedperiodsmayaffectdevicereliability.

RECOMMENDEDOPERATINGCONDITIONS

ParameterSymbol

InputVoltage

OperatingJunctionTemperature

Value

15V

Unit

Vi

Tj

℃

0~+125

C,Sep,2013

ELECTRICALCHARACTERISTICS(VIN≤10V,TJ=25℃unlessotherwisespecified.)

Parameter

Symbol

PartNO.

Testconditions

Min

Typ

Max

Unit

IOUT=10mA,VIN=-VOUT

3.23

1.2311.2501.269

ReferenceVoltage

VIROC

CJA1117B-ADJ

V

10mA≤IOUT≤1A,2.75V≤VIN-VOUT≤13.25V

IOUT=10mA,VIN3.8V1.773

1.2251.2501.275

=

=

=

=

1.8

1.827

1.836

2.538

2.550

3.350

3.366

5.075

CJA1117B-1.8

CJA1117B-2.5

CJA1117B-3.3

CJA1117B-5.0

V

V

V

10mA≤IOUT≤1A,3.3V≤VIN≤12V1.764

IOUT=10mA,VIN4.5V2.463

1.8

2.5

10mA≤IOUT≤1A,4V≤VIN≤12V2.450

IOUT=10mA,VIN5.3V3.251

2.5

OutputVoltage

VO

3.3

10mA≤IOUT≤1A,4.8V≤VIN≤12V3.234

IOUT=10mA,VIN7.0V4.925

3.3

5.0

V

10mA≤IOUT≤1A,6.5V≤VIN≤12V

IOUT=10mA,1.5V≤VIN-VOUT≤12V

IOUT=10mA,1.5V≤VIN-VOUT≤10.2V

IOUT=10mA,1.5V≤VIN-VOUT≤9.5V

IOUT=10mA,1.5V≤VIN-VOUT≤8.7V

IOUT=10mA,1.5V≤VIN-VOUT≤7V

4.95.05.1

CJA1117B-ADJ

CJA1117B-1.8

CJA1117B-2.5

CJA1117B-3.3

CJA1117B-5.0

CJA1117B-ADJ

CJA1117B-1.8

CJA1117B-2.5

CJA1117B-3.3

CJA1117B-5.0

=

0.035

0.2

7

%

1

LineRegulation

LNR

17

mV

%

17

1

10

0.4

7.2

10

0.2

LoadRegulation

LDR

VIN-VOUT=1.5V,10mA≤IOUT≤1A

mV

13.2

20

DropoutVoltage

CurrentLimit

VD

ΔVREF=1%,IOUT

1.0A

1.3

V

A

Ilimit

=

VIN-VOUT2V1

AdjustPinCurrent

60

120

5

μA

Minimum

IL

Iq

1.5V≤VIN-VOUT≤12V(ADJonly)

1.7

μA

LoadCurrent

QuiescentCurrent

VIN=VOUT+1.25V(ADJexcept)

f=120Hz,COUT=22μFTantalum,

5

10

mA

RippleRejection

RR

6075

dB

VIN-VOUT=3V,IOUT

=1A

TemperatureStability

Long-TermStability

0.5

0.3

%

%

TA=125℃,1000hrs

RMSOutput

TA=25℃,10Hz≤f≤10kHz

0.003

%

Noise(%ofVOUT)

Thermal

25

℃

ShutdownHysteresis

*Withpackagesolderingtocopperareaoverbacksidegroundpla