Texas Instruments LMZ12002EXT Handleiding

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EFFICIENCY (%)

50

55

60

65

70

75

80

85

90

95

100

0

0.4

0.81.21.62

OUTPUT CURRENT (A)

25°C

1.8

1.2

1.5

V

IN

C

IN

Enable

R

ON

R

FBT

C

FF

C

SS

R

FBB

C

OUT

LMZ12002EXT

VOUT

FB

RON

SS

VIN

EN

GND

V

OUT

@ 2A

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

LMZ12002EXT

SNVS662G–JUNE2010–REVISEDAUGUST2015

LMZ12002EXT2-ASIMPLESWITCHER

®

PowerModuleWith20-VMaximumInputVoltage

forDemandingEnvironmentsandRuggedApplications

1Features2Applications

1

•JunctionTemperatureRange–55°Cto125°C

•Point-of-loadConversionsfrom5-Vand12-V

InputRail

•IntegratedShieldedInductor

•Time-CriticalProjects

•SimplePCBLayout

•Space-ConstrainedHighThermalRequirement

•FlexibleStart-upSequencingUsingExternalSoft-

Applications

StartCapacitorandPrecisionEnable

•NegativeOutputVoltageApplications(SeeAN-

•ProtectionAgainstInrushCurrentsandFaults

2027SNVA425)

SuchasInputUVLOandOutputShortCircuit

•SingleExposedPadandStandardPinoutforEasy

3Description

MountingandManufacturing

TheLMZ12002EXTSIMPLESWITCHER

®

power

•FastTransientResponseforFPGAsandASICs

moduleisaneasy-to-usestep-downDC-DCsolution

•LowOutputVoltageRipple

capableofdrivingupto2-Aloadwithexceptional

powerconversionefficiency,lineandloadregulation,

•Pin-to-PinCompatibleWithFamilyDevices:

andoutputaccuracy.TheLMZ12002EXTisavailable

–LMZ14203EXT/2EXT/1EXT(42-VMaximum3

inaninnovativepackagethatenhancesthermal

A,2A,1A)

performanceandallowsforhandormachine

–LMZ14203/2/1(42-VMaximum3A,2A,1A)

soldering.

–LMZ12003/2/1(20-VMaximum3A,2A,1A)

TheLMZ12002EXTcanacceptaninputvoltagerail

•FullyWEBENCH

®

PowerDesignerenabled

between4.5Vand20V,andcandeliveran

adjustableandhighlyaccurateoutputvoltageaslow

•LowRadiatedEmissionsandHighRadiated

as0.8V.TheLMZ12002EXTonlyrequiresthree

Immunity

externalresistorsandfourexternalcapacitorsto

•PassesVibrationStandardMIL-STD-883Method

completethepowersolution.TheLMZ12002EXTisa

2007.2ConditionAJESD22–B103BCondition1

reliableandrobustdesignwiththefollowing

•PassesDropStandardMIL-STD-883Method

protectionfeatures:thermalshutdown,input

2002.3ConditionBJESD22–B110ConditionBundervoltagelockout,outputovervoltageprotection,

short-circuitprotection,outputcurrentlimit,andthe

•ElectricalSpecifications

deviceallowsstart-upintoaprebiasedoutput.A

–12-WMaximumTotalPowerOutput

singleresistoradjuststheswitchingfrequencyupto1

–Upto2-AOutputCurrent

MHz.

–InputVoltageRange4.5Vto20V

DeviceInformation

(1)(2)

–OutputVoltageRange0.8Vto6V

PARTNUMBERPACKAGEBODYSIZE(NOM)

–Efficiencyupto92%

LMZ12002EXTNDW(7)10.16mm×9.85mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

(2)Peakreflowtemperatureequals245°C.SeeSNAA214for

moredetails.

SimplifiedApplicationSchematicEfficiency5-VInputat25°C

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties