參數(shù)資料
型號： LTC3541EDD-3
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3 X 3 MM, PLASTIC, M0-229WEED-2, DFN-10
文件頁數(shù)： 14/20頁
文件大?。?/td> 379K
代理商： LTC3541EDD-3
LTC3541-3
35413fc
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V unless otherwise specified (Notes 2, 3).
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IS
Buck+VLDO
BurstModeSleep
VINQuiescentCurrent
LVIN=1.8V,LVOUT=1.575V,ENBUCK=VIN,
ENVLDO=VIN,MODE=0V,IOUT(VLDO)=10A,
VVOUT=2.03V
85
A
Buck+VLDO
BurstModeActive
VINQuiescentCurrent
LVIN=1.8V,LVOUT=1.575V,ENBUCK=VIN,
ENVLDO=VIN,MODE=VIL,IOUT(VLDO)=10A,
VVOUT=1.575V
315
A
Buck+VLDO
Pulse-SkipModeActive
VINQuiescentCurrent
LVIN=1.8V,LVOUT=1.575V,ENBUCK=VIN,
ENVLDO=VIN,MODE=VIN,IOUT(VLDO)=10A,
VVOUT=1.575V
300
A
Buck
BurstModeSleep
VINQuiescentCurrent
VVOUT=2.03V,IOUT(BUCK)=0A,ENBUCK=VIN,
ENVLDO=0V,MODE=0V
55
A
Buck
BurstModeActive
VINQuiscentCurrent
VVOUT=1.575V,IOUT(BUCK)=0A,ENBUCK=VIN,
ENVLDO=0V,MODE=0V
300
A
Buck
Pulse-SkipModeActive
VINQuiescentCurrent
VVOUT=1.575V,IOUT(BUCK)=0A,ENBUCK=VIN,
ENVLDO=0V,MODE=VIN
285
A
LinearRegulatorVINQuiescent
Current
LVOUT=1.575V,ENBUCK=VIL,ENVLDO=VIN,
IOUT(VLDO)=10A
50
A
VINShutdownQuiescent
Current
ENBUCK=0V,ENVLDO=0V
2.5
A
LVINShutdownQuiescent
Current
LVIN=3.6V,ENBUCK=0V,ENVLDO=0V
0.1
A
fOSC
OscillatorFrequency
●
1.8
2.25
2.7
MHz
RPFET
RDS(ON)ofP-ChannelMOSFET ISW=100mA
0.25
Ω
RNFET
RDS(ON)ofN-ChannelMOSFET ISW=–100mA
0.35
Ω
ILSW
SWLeakage
Enable=0V,VSW=0Vor6V,VIN=6V
±0.01
±1
A
VIH
InputPinHighThreshold
MODE,ENBUCK,ENVLDO
●
0.9
V
VIL
InputPinLowThreshold
MODE,ENBUCK,ENVLDO
●
0.3
V
IMODE,
IENBUCK,
IENVLDO
InputPinCurrent
●
±0.01
±1
A
Note 1:StressesbeyondthoselistedunderAbsoluteMaximumRatings
maycausepermanentdamagetothedevice.ExposuretoanyAbsolute
MaximumRatingconditionforextendedperiodsmayaffectdevice
reliabilityandlifetime.
Note 2:TheLTC3541-3isguaranteedtomeetperformancespecifications
from0°Cto85°C.VLDO/linearregulatoroutputistestedandspecified
underpulseloadconditionssuchthatTJ≈TA,andare100%production
testedat25°C.Specificationsoverthe–40°Cto85°Coperating
temperaturerangeareassuredbydesign,characterizationandcorrelation
withstatisticalprocesscontrols.
Note 3:MinimumoperatingLVINvoltagerequiredforVLDOregulationis:
LVIN≥LVOUT+VDROPOUT
Note 4:MinimumoperatingVINvoltagerequiredforVLDOandlinear
regulatorregulationis:
VIN≥LVOUT+1.4V
Note 5:TJiscalculatedfromtheambienttemperature,TA,andpower
dissipation,PD,accordingtothefollowingformula:
TJ=TA+(PD43°C/W)
Note 6:TheLTC3541-3istestedinaproprietarytestmodethatconnects
VBUCKFBtotheoutputoftheerroramplifier.Forthereferenceregulation
andlineregulationtests,theoutputoftheerroramplifierissettothe
midpoint.Fortheloadregulationtest,theoutputoftheerroramplifieris
driventominimumandmaximumofthesignalrange.
Note 7:Measurementmadeinclosedlooplinearregulatorconfiguration
withLVOUT=1.575V,ILOAD=10A.
Note 8:Measurementmadeinaproprietarytestmodewithslope
compensationdisabled.
Note 9:Measurementassuredbydesign,characterizationandstatistical
processcontrol.
Note 10:ThisICincludesovertemperatureprotectionthatisintended
toprotectthedeviceduringmomentaryoverloadconditions.Junction
temperaturewillexceed125°Cwhenovertemperatureprotectionisactive.
Continuousoperationabovethespecifiedmaximumoperatingjunction
temperaturemayimpairdevicereliability.
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