Texas Instruments LMZ12008 Handleiding

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V

IN

C

IN

3 x 10 PF

R

FBT

C

FF

4.7 nF (OPT)

See Table

C

SS

0.47 PF

(OPT)

R

FBB

See Table

C

OUT

2 x 330 PF

LMZ12008

VOUT

SS

FB

VIN

EN

PGND

V

OUT

AGND

Enable

02468

40

50

60

70

80

90

100

EFFICIENCY (%)

OUTPUT CURRENT (A)

6Vin

8Vin

10Vin

12Vin

16Vin

20Vin

Product

Folder

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

LMZ12008

SNVS716H–MARCH2011–REVISEDFEBRUARY2016

LMZ120088-ASIMPLESWITCHER

®

PowerModuleWith20-VMaximumInputVoltage

1

1Features

1

•IntegratedShieldedInductor

•SimplePCBLayout

•FixedSwitchingFrequency(350kHz)

•FlexibleStart-upSequencingUsingExternalSoft-

start,TrackingandPrecisionEnable

•ProtectionAgainstInrushCurrentsandFaults

suchasInputUVLOandOutputShortCircuit

•JunctionTemperatureRange–40°Cto125°C

•SingleExposedPadandStandardPinoutforEasy

MountingandManufacturing

•FullyEnabledforWEBENCH

®

PowerDesigner

•PinCompatibleWithLMZ22010/08/06,

LMZ12010/06,LMZ23610/08/06,and

LMZ13610/08/06

•ElectricalSpecifications

–40-WMaximumTotalOutputPower

–Upto8-AOutputCurrent

–InputVoltageRange6Vto20V

–OutputVoltageRange0.8Vto6V

–Efficiencyupto92%

•PerformanceBenefits

–HighEfficiencyReducesSystemHeat

Generation

–LowRadiatedEmissions(EMI)Testedto

EN55022

NOTE:EN55022:2006,+A1:2007,FCCPart15SubpartB,

testedonEvaluationBoardwithEMIconfiguration

–Only7ExternalComponents

–LowOutputVoltageRipple

–NoExternalHeatSinkRequired

2Applications

•Point-of-loadConversionsfrom12-VInputRail

•Time-CriticalProjects

•SpaceConstrained/HighThermalRequirement

Applications

•NegativeOutputVoltageApplications

SeeAN-2027SNVA425.

3Description

TheLMZ12008SIMPLESWITCHER

®

powermodule

isaneasy-to-usestep-downDC-DCsolutioncapable

ofdrivingupto8-Aload.TheLMZ12008isavailable

inaninnovativepackagethatenhancesthermal

performanceandallowsforhandormachine

soldering.

TheLMZ12008canacceptaninputvoltagerail

between6Vand20Vandcandeliveranadjustable

andhighlyaccurateoutputvoltageaslowas0.8V.

TheLMZ12008onlyrequirestwoexternalresistors

andexternalcapacitorstocompletethepower

solution.TheLMZ12008isareliableandrobust

designwiththefollowingprotectionfeatures:thermal

shutdown,programmableinputundervoltagelockout,

outputovervoltageprotection,shortcircuitprotection,

outputcurrentlimit,andthedeviceallowsstart-up

intoaprebiasedoutput.

DeviceInformation

(1)(2)

PARTNUMBERPACKAGEBODYSIZE(NOM)

LMZ12008NDY(11)15.00mm×15.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

(2)Peakreflowtemperatureequals245°C.SeeSNAA214for

moredetails.

SimplifiedApplicationSchematicEfficiency3.3-VOutputat25°C

Product specificaties