Texas Instruments LMZ14201 Handleiding

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EFFICIENCY (%)

50

55

60

65

70

75

80

85

90

95

100

0

0.2

0.40.60.81

OUTPUT CURRENT (A)

25°C

1.8

1.2

1.5

0.8

3.3

2.5

5.0

6.0

V

IN

C

IN

Enable

R

ON

R

FBT

C

FF

C

SS

R

FBB

C

OUT

LMZ14201

VOUT

FB

RON

SS

VIN

EN

GND

V

OUT

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

Reference

Design

LMZ14201

SNVS649I–JANUARY2010–REVISEDOCTOBER2015

LMZ14201SIMPLESWITCHER

®

6Vto42V,1APowerModuleinLeadedSMT-TOPackage

1Features2Applications

1

•IntegratedShieldedInductor

•PointofLoadConversionsFrom12-Vand24-V

InputRail

•SimplePCBLayout

•Time-CriticalProjects

•FlexibleStart-UpSequencingUsingExternalSoft-

StartandPrecisionEnable•SpaceConstrainedandHighThermal

RequirementApplications

•ProtectionAgainstInrushCurrentsandFaults

SuchasInputUVLOandOutputShortCircuit•NegativeOutputVoltageApplications

(SeeAN-2027)SNVA425

•–40°Cto125°CJunctionTemperatureRange

•SingleExposedPadandStandardPinoutforEasy

3Description

MountingandManufacturing

TheLMZ14201SIMPLESWITCHER

®

powermodule

•FastTransientResponseforPoweringFPGAs

isaneasy-to-usestep-downDC-DCsolutionthatcan

andASICs

driveupto1-Aloadwithexceptionalpower

•LowOutputVoltageRipple

conversionefficiency,lineandloadregulation,and

outputaccuracy.TheLMZ14201isavailableinan

•Pin-to-PinCompatibleFamily:

innovativepackagethatenhancesthermal

–LMZ1420x(42VMaximum3A,2A,1A)

performanceandallowsforhandormachine

–LMZ1200x(20VMaximum3A,2A,1A)

soldering.

•FullyEnabledforWEBENCH

®

PowerDesigner

TheLMZ14201canacceptaninputvoltagerail

•ElectricalSpecifications

between6Vand42Vanddeliveranadjustableand

highlyaccurateoutputvoltageaslowas0.8V.The

–6-WMaximumTotalOutputPower

LMZ14201onlyrequiresthreeexternalresistorsand

–Upto1-AOutputCurrent

fourexternalcapacitorstocompletethepower

–InputVoltageRange6Vto42V

solution.TheLMZ14201isareliableandrobust

designwiththefollowingprotectionfeatures:thermal

–OutputVoltageRange0.8Vto6V

shutdown,inputUVLO,outputovervoltageprotection,

–Efficiencyupto90%

short-circuitprotection,outputcurrentlimit,and

•PerformanceBenefits

allowsstart-upintoaprebiasedoutput.Asingle

–OperatesatHighAmbientTemperatureWith

resistoradjuststheswitchingfrequencyupto1MHz.

NoThermalDerating

DeviceInformation

(1)(2)

–HighEfficiencyReducesSystemHeat

PARTNUMBERPACKAGEBODYSIZE(NOM)

Generation

LMZ14201TO-PMOD(7)10.16mm×9.85mm

–LowRadiatedEmissions(EMI)TestedWith

(1)Forallavailablepackages,seetheorderableaddendumat

EN55022ClassBStandard

theendofthedatasheet.

–LowExternalComponentCount

(2)Peakreflowtemperatureequals245°C.SeeSNAA214for

moredetails.

SimplifiedApplicationSchematic

Efficiency12-VInputat25°C

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties