Texas Instruments LP3982 Handleiding
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2.2 PF
SHDN
GND
IN
OUT
FAULT
100
kŸ
2.2 PF
CERAMIC
V
IN
V
O
CC
33 nF
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Design
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
LP3982
SNVS185F–FEBRUARY2002–REVISEDAPRIL2017
LP3982Micropower,Ultra-Low-Dropout,Low-Noise,300-mACMOSRegulator
1
1Features
1
•2.5-Vto6-VInputRange
•MAX8860Pin,Package,andSpecification
Compatible
•300-mAOutputCurrent
•120-mVTypicalDropoutat300mA
•90-μATypicalQuiescentCurrent
•1-nATypicalShutdownMode
•60-dBTypicalPSRR
•120-μsTypicalTurnonTime
•StableWithSmallCeramicOutputCapacitors
•37-μV
RMS
OutputVoltageNoise
(10Hzto100kHz)
•Overtemperature/OvercurrentProtection
•±2%OutputVoltageTolerance
•CreateaCustomDesignUsingtheLP3982With
theWEBENCH
®
PowerDesigner
2Applications
•WirelessHandsets
•DSPCorePower
•BatteryPoweredElectronics
•PortableInformationAppliances
3Description
TheLP3982low-dropout(LDO)CMOSlinear
regulatorisavailablein1.8-V,2.5-V,2.82-V,3-V,
3.3-V,andadjustableversions.Theydeliver300mA
ofoutputcurrent.Packagedinan8-pinVSSOP,the
LP3982ispin-andpackage-compatiblewithMaxim's
MAX8860.TheLM3982isalsoavailableinthesmall
footprintWSONpackage.
TheLP3982suitsbattery-poweredapplications
becauseofitsshutdownmode(1nAtypical),low
quiescentcurrent(90μAtypical),andLDOvoltage
(120mVtypical).Thelowdropoutvoltageallowsfor
moreutilizationofabattery’savailableenergyby
operatingclosertoitsend-of-lifevoltage.TheLP3982
device'sPMOSoutputtransistorconsumesrelatively
nodrivecurrentcomparedtoPNPLDOregulators.
ThisPMOSregulatorisstablewithsmallceramic
capacitiveloads(2.2μFtypical).
Thesedevicesalsoincluderegulationfaultdetection,
abandgapvoltagereference,constantcurrent
limiting,andthermal-overloadprotection.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
LP3982
WSON(8)2.50mm×3.00mm
VSSOP(8)3.00mm×3.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
ApplicationCircuit(FixedV
OUT
Version)
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LP3982 |
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