LTC3541-2 datasheet(2/20 Pages) LINER

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LTC3541-2

35412fb

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 (Note 2)

ELECTRICAL CHARACTERISTICS

ABSOLUTE AXI U RATI GS

PACKAGE/ORDER I FOR ATIO

TOP VIEW

DD PAcKAGE

10-LEAD (3mm

× 3mm) PLASTIc DFN

ENVLDO

MODE

GND

LVIN

VIN

ENBUcK

VOUT

LVOUT

TJMAX=125°C,θJA=43°C/W

EXPOSEDPAD(PIN11)ISPGND,MUSTBESOLDEREDTOPCB

ORDERPARTNUMBER

DDPARTMARKING

LTC3541EDD-2

LCHQ

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

VIN

InputVoltageRange

(Note4)

●

2.7

5.5

VIN(LINEREG) BuckVINLineRegulation

VIN=2.7Vto5.5V,ENBUCK=VIN,

ENVLDO=0V,MODE=VIN(Note6)

●

0.04

0.4

%/V

VLDOVINLineRegulation

(ReferredtoLVOUT)

VIN=2.9Vto5.5V,LVOUT=1.5V,ENBUCK=VIN,

ENVLDO=VIN,MODE=0V,IOUT(VLDO)=100mA

2.2

mV/V

LinearRegulatorVINLine

Regulation(ReferredtoLVOUT)

VIN=2.9Vto5.5V,LVOUT=1.5V,ENBUCK=0V,

ENVLDO=VIN,IOUT(LDO)=10mA

2.2

mV/V

LVIN(LINEREG) LVINLineRegulation

(ReferredtoLVOUT)

LVIN=1.6Vto5.5V,VIN=5.5V,LVOUT=1.5V,

ENBUCK=VIN,ENVLDO=VIN,MODE=VIN,

IOUT(VLDO)=100mA

0.8

mV/V

VLDODO

LVIN–LVOUTDropoutVoltage LVOUT=1.5V,ENBUCK=VIN,ENVLDO=VIN,

MODE=VIN,IOUT(VLDO)=50mA(Note9)

VLOADREG

BuckOutputLoadRegulation

ENBUCK=VIN,ENVLDO=0V,MODE=VIN(Note6)

0.5

VLDOOutputLoadRegulation IOUT(VLDO)=1mA–300mA,LVIN=1.875V,LVOUT=1.5V,

ENBUCK=VIN,ENVLDO=VIN,MODE=VIN

●

0.25

0.5

LinearRegulatorOutputLoad

Regulation

IOUT(LDO)=1mA–30mA,LVOUT=1.5V,

ENBUCK=0V,ENVLDO=VIN

●

0.25

0.5

VVOUT

ReferenceRegulationVoltage

(Note6)

ENBUCK=VIN,ENVLDO=0V,TA=25°C

1.837

1.875

1.913

ENBUCK=VIN,ENVLDO=0V,0°C≤TA≤85°C

1.833

1.875

1.917

ENBUCK=VIN,ENVLDO=0V,–40°C≤TA≤85°C

●

1.828

1.875

1.922

VLVOUT

ReferenceRegulationVoltage

(Note7)

ENBUCK=0V,ENVLDO=VIN,TA=25°C

1.47

1.5

1.53

ENBUCK=0V,ENVLDO=VIN,0°C≤TA≤85°C

1.466

1.5

1.534

ENBUCK=0V,ENVLDO=VIN,–40°C≤TA≤85°C

●

1.462

1.5

1.538

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