Texas Instruments LM26001B Handleiding
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LM26001B
SW
SW
BOOT
FB
COMP
VDD
GND
FPWM
FREQ
SS
SYNC
EN
PGOOD
VIN
2
3
13
9
144
10
6
11
5
8
7
15
16
VIN
VOUT
VIN
VBIAS
112
C1
C5
R3
C8
R5
L
C4
R2
R1
C6
C3
R4
D1
VDD
17
EP
R6
EN
SYNC
+
LM26001B
www.ti.com
SNVS491B–MAY2007–REVISEDAPRIL2013
LM26001B1.5ASwitchingRegulatorwithHighEfficiencySleepMode
CheckforSamples:LM26001B
1
FEATURES
DESCRIPTION
TheLM26001Bisaswitchingregulatordesignedfor
2
•HighEfficiencySleepMode
thehighefficiencyrequirementsofapplicationswith
•40µATypicalIqinSleepMode
stand-bymodes.Thedevicefeaturesalow-current
•10µATypicalIqinShutdownMode
sleepmodetomaintainefficiencyunderlight-load
conditionsandcurrent-modecontrolforaccurate
•3.0VMinimumInputVoltage
regulationoverawideinputvoltagerange.Quiescent
•4.0Vto18VContinuousInputRange
currentisreducedto10µAtypicallyinshutdown
•2.0%ReferenceAccuracy
modeandlessthan40µAinsleepmode.Forced
PWMmodeisalsoavailabletodisablesleepmode.
•Cycle-by-CycleCurrentLimit
•AdjustableFrequency(150kHzto500kHz)
TheLM26001Bcandeliverupto1.5Aofcontinuous
loadcurrentwithafixedcurrentlimit,throughthe
•SynchronizabletoanExternalClock
internalN-channelswitch.Theparthasawideinput
•PowerGoodFlag
voltagerangeof4.0Vto18Vandcanoperatewith
•ForcedPWMFunction
inputvoltagesaslowas3Vduringlinetransients.
•AdjustableSoft-Start
Operatingfrequencyisadjustablefrom150kHzto
•HTSSOP-16ExposedPadPackage
500kHzwithasingleresistorandcanbe
synchronizedtoanexternalclock.
•ThermalShutDown
OtherfeaturesincludePowergood,adjustablesoft-
APPLICATIONS
start,enablepin,inputunder-voltageprotection,and
aninternalbootstrapdiodeforreducedcomponent
•AutomotiveTelematics
count.
•NavigationSystems
•In-DashInstrumentation
•BatteryPoweredApplications
•Stand-byPowerforHomeGateways/Set-Top
Boxes
TypicalApplicationCircuit
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2007–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LM26001B |
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