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): 12/20頁
文件大小: 379K
代理商: LTC3541EDD-3
LTC3541-3
35413fc
SupplyVoltages:
VIN,LVIN.................................................. –0.3Vto6V
LVIN–VIN..........................................................<0.3V
PinVoltages:
ENVLDO,ENBUCK,MODE,SW......–0.3VtoVIN+0.3V
LinearRegulatorIOUT(MAX)(100ms)(Note9)......100mA
OperatingAmbientTemperatureRange
(Note2).................................................... –40°Cto85°C
JunctionTemperature(Notes5,10)...................... 125°C
StorageTemperatureRange................... –65°Cto125°C
(Note 1)
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
ABSOLUTE AXI U RATI GS
W
U
PACKAGE/ORDER I FOR ATIO
U
W
TOP VIEW
11
DD PAcKAGE
10-LEAD (3mm
× 3mm) PLASTIc DFN
10
9
6
7
8
4
5
3
2
1
SW
ENVLDO
MODE
GND
LVIN
VIN
ENBUcK
VOUT
Nc
LVOUT
TJMAX=125°C,θJA=43°C/W
EXPOSEDPAD(PIN11)ISPGND,MUSTBESOLDEREDTOPCB
ORDERPARTNUMBER
DDPARTMARKING
LTC3541EDD-3
LCHR
Order OptionsTapeandReel:Add#TR
LeadFree:Add#PBFLeadFreeTapeandReel:Add#TRPBF
LeadFreePartMarking:http://www.linear.com/leadfree/
ConsultLTCMarketingforpartsspecifiedwithwideroperatingtemperatureranges.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IPK
PeakInductorCurrent
VIN=4.2V(Note8)
0.8
0.95
1.25
A
VIN
InputVoltageRange
(Note4)
2.7
5.5
V
VIN(LINEREG) BuckVINLineRegulation
VIN=2.7Vto5.5V,ENBUCK=VIN,
ENVLDO=0V,MODE=VIN(Note6)
0.04
0.4
%/V
VLDOVINLineRegulation
(ReferredtoLVOUT)
VIN=3Vto5.5V,LVOUT=1.575V,ENBUCK=VIN,
ENVLDO=VIN,MODE=0V,IOUT(VLDO)=100mA
2.2
mV/V
LinearRegulatorVINLine
Regulation(ReferredtoLVOUT)
VIN=3Vto5.5V,LVOUT=1.575V,ENBUCK=0V,
ENVLDO=VIN,IOUT(LDO)=10mA
2.2
mV/V
LVIN(LINEREG) LVINLineRegulation
(ReferredtoLVOUT)
LVIN=1.675Vto5.5V,VIN=5.5V,LVOUT=1.575V,
ENBUCK=VIN,ENVLDO=VIN,MODE=VIN,
IOUT(VLDO)=100mA
0.8
mV/V
VLDODO
LVIN–LVOUTDropoutVoltage LVOUT=1.575V,ENBUCK=VIN,ENVLDO=VIN,
MODE=VIN,IOUT(VLDO)=50mA(Note9)
20
50
mV
VLOADREG
BuckOutputLoadRegulation
ENBUCK=VIN,ENVLDO=0V,MODE=VIN(Note6)
0.5
%
VLDOOutputLoadRegulation IOUT(VLDO)=1mA–300mA,LVIN=1.8V,LVOUT=1.575V,
ENBUCK=VIN,ENVLDO=VIN,MODE=VIN
0.25
0.5
%
LinearRegulatorOutputLoad
Regulation
IOUT(LDO)=1mA–30mA,LVOUT=1.575V,
ENBUCK=0V,ENVLDO=VIN
0.25
0.5
%
VVOUT
ReferenceRegulationVoltage
(Note6)
ENBUCK=VIN,ENVLDO=0V,TA=25°C
1.764
1.8
1.836
V
ENBUCK=VIN,ENVLDO=0V,0°C≤TA≤85°C
1.760
1.8
1.840
V
ENBUCK=VIN,ENVLDO=0V,–40°C≤TA≤85°C
1.755
1.8
1.845
V
VLVOUT
ReferenceRegulationVoltage
(Note7)
ENBUCK=0V,ENVLDO=VIN,TA=25°C
1.543
1.575
1.607
V
ENBUCK=0V,ENVLDO=VIN,0°C≤TA≤85°C
1.540
1.575
1.610
V
ENBUCK=0V,ENVLDO=VIN,–40°C≤TA≤85°C
1.536
1.575
1.614
V
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