Texas Instruments LMZ10505 Bedienungsanleitung

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

LMZ10505

SNVS633K–JANUARY2010–REVISEDAPRIL2019

LMZ105055-APowerModuleWith5.5-VMaximumInputVoltage

1

1Features

1

•IntegratedShieldedInductor

•FlexibleStart-upSequencingUsingExternalSoft-

Start,Tracking,andPrecisionEnable

•ProtectionAgainstIn-RushCurrentsandFaults

suchasInputUVLOandOutputShort-Circuit

•SingleExposedPadandStandardPinoutforEasy

MountingandManufacturing

•Pin-to-PinCompatibleWith

–LMZ10503(3-A/15-WMaximum)

–LMZ10504(4-A/20-WMaximum)

•FullyEnableforWEBENCH

®

andPowerDesigner

•ElectricalSpecifications

–25-WMaximumTotalOutputPower

–Upto5-AOutputCurrent

–InputVoltageRange2.95Vto5.5V

–OutputVoltageRange0.8Vto5V

–±1.63%FeedbackVoltageAccuracyOver

Temperature

–Efficiencyupto96%

•PerformanceBenefits

–OperatesatHighAmbientTemperatures

–HighEfficiencyupto96%ReducesSystem

HeatGeneration

–LowRadiatedEmissions(EMI)Testedto

EN55022ClassBStandard(EN55022:2006,

+A1:2007,FCCPart15SubpartB:2007.See

Table9andLayoutforInformationonDevice

UnderTest.)

–Passes10-V/mRadiatedImmunityEMITested

toStandardEN610004-3

–FastTransientResponseforPoweringFPGAs

andASICs

•CreateaCustomDesignUsingtheLMZ10505

WiththeWEBENCH

®

PowerDesigner

2Applications

•Point-of-LoadConversionsfrom3.3-Vand5-V

Rails

•Space-ConstrainedApplications

•Noise-SensitiveApplications(Suchas

Transceiver,Medical)

3Description

TheLMZ10505powermoduleisacomplete,easy-to-

use,DC-DCsolutioncapableofdrivinguptoa5-A

loadwithexceptionalpowerconversionefficiency,

outputvoltageaccuracy,lineandloadregulation.The

LMZ10505isavailableinaninnovativepackagethat

enhancesthermalperformanceandallowsforhand

ormachinesoldering.

TheLMZ10505canacceptaninputvoltagerail

between2.95Vand5.5Vandcandeliveran

adjustableandhighlyaccurateoutputvoltageaslow

as0.8V.Onemegahertzfixed-frequencyPWM

switchingprovidesapredictableEMIcharacteristic.

Twoexternalcompensationcomponentscanbe

adjustedtosetthefastestresponsetime,while

allowingtheoptiontouseceramicorelectrolytic

outputcapacitors.Externallyprogrammablesoft-start

capacitorfacilitatescontrolledstart-up.The

LMZ10505isareliableandrobustsolutionwiththe

followingfeatures:losslesscycle-by-cyclepeak

currentlimittoprotectforovercurrentorshort-circuit

fault,thermalshutdown,inputundervoltagelockout,

andprebiasedstart-up.

DeviceInformation

(1)(2)

PARTNUMBERPACKAGEBODYSIZE(NOM)

LMZ10505TO-PMOD(7)9.85mm×10.16mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

(2)Peakreflowtemperatureequals245°C.SeeDesignSummary

LMZ1xxxandLMZ2xxxPowerModuleFamily(SNAA214)for

moredetails.

TypicalApplicationCircuitEfficiencyV

OUT

=3.3V

Produktspezifikationen