Texas Instruments LMZ12002 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
10 PF
Enable
R
ON
See Table
R
FBT
C
FF
0.022 PF
See Table
C
SS
0.022 PF
R
FBB
See Table
100 PF
LMZ12002
VOUT
FB
RON
SS
VIN
EN
GND
V
OUT
@ 2A
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LMZ12002
SNVS650H–JANUARY2010–REVISEDAUGUST2015
LMZ120022-ASIMPLESWITCHER
®
PowerModuleWith20-VMaximumInputVoltage
1Features2Applications
1
•IntegratedShieldedInductor
•Point-of-loadConversionsfrom5-Vand12-V
InputRail
•SimplePCBLayout
•Time-CriticalProjects
•FlexibleStart-upSequencingUsingExternalSoft-
StartCapacitorandPrecisionEnable•Space-ConstrainedHighThermalRequirement
Applications
•ProtectionAgainstInrushCurrentsandFaults
SuchasInputUVLOandOutputShortCircuit•NegativeOutputVoltageApplications
(SeeAN-2027SNVA425)
•JunctionTemperatureRange–40°Cto125°C
•SingleExposedPadandStandardPinoutforEasy
3Description
MountingandManufacturing
TheLMZ12002SIMPLESWITCHER
®
powermodule
•FastTransientResponseforFPGAsandASICs
isaneasy-to-usestep-downDC-DCsolutioncapable
•LowOutputVoltageRipple
ofdrivingupto2-Aloadwithexceptionalpower
conversionefficiency,lineandloadregulation,and
•Pin-to-PinCompatibleWithFamilyDevices:
outputaccuracy.TheLMZ12002isavailableinan
–LMZ14203/2/1(42-VMaximum3A,2A,1A)
innovativepackagethatenhancesthermal
–LMZ12003/2/1(20-VMaximum3A,2A,1A)
performanceandallowsforhandormachine
•FullyWEBENCH
®
PowerDesignerEnabled
soldering.
•PerformanceBenefits
TheLMZ12002canacceptaninputvoltagerail
between4.5Vand20V,andcandeliveran
–12-WMaximumTotalPowerOutput
adjustableandhighlyaccurateoutputvoltageaslow
–Upto2-AOutputCurrent
as0.8V.TheLMZ12002onlyrequiresthreeexternal
–InputVoltageRange4.5Vto20V
resistorsandfourexternalcapacitorstocompletethe
–OutputVoltageRange0.8Vto6V
powersolution.TheLMZ12002isareliableand
robustdesignwiththefollowingprotectionfeatures:
–Efficiencyupto92%
thermalshutdown,inputundervoltagelockout,output
•ElectricalSpecifications
overvoltageprotection,shortcircuitprotection,output
–OperatesatHighAmbientTemperatureWith
currentlimit,andthedeviceallowsstart-upintoa
NoThermalDerating
prebiasedoutput.Asingleresistoradjuststhe
switchingfrequencyupto1MHz.
–HighEfficiencyReducesSystemHeat
Generation
DeviceInformation
(1)(2)
–LowRadiatedEmissions(EMI)Testedto
PARTNUMBERPACKAGEBODYSIZE(NOM)
EN55022ClassBStandard
LMZ12002NDW(7)9.85mm×10.16mm
–LowExternalComponentCount
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
(2)Peakreflowtemperatureequals245°C.SeeSNAA214for
moredetails.
SimplifiedApplicationSchematicEfficiency5-VInputat25°C
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LMZ12002 |
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