LTC3541EDD-2 Просмотр технического описания (PDF) - Linear Technology
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LTC3541EDD-2 Datasheet PDF : 22 Pages
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LTC3541-2
ELECTRICAL CHARACTERISTICS The l 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)
SYMBOL
IPK
VIN
VIN(LINEREG)
LVIN(LINEREG)
VLDODO
VLOADREG
VVOUT
VLVOUT
IS
PARAMETER
Peak Inductor Current
Input Voltage Range
Buck VIN Line Regulation
VLDO VIN Line Regulation
(Referred to LVOUT)
Linear Regulator VIN Line
Regulation (Referred to LVOUT)
LVIN Line Regulation
(Referred to LVOUT)
LVIN – LVOUT Dropout Voltage
Buck Output Load Regulation
VLDO Output Load Regulation
Linear Regulator Output Load
Regulation
Reference Regulation Voltage
(Note 6)
Reference Regulation Voltage
(Note 7)
Buck + VLDO
Burst Mode Sleep
VIN Quiescent Current
Buck + VLDO
Burst Mode Active
VIN Quiescent Current
Buck + VLDO
Pulse-Skip Mode Active
VIN Quiescent Current
Buck
Burst Mode Sleep
VIN Quiescent Current
Buck
Burst Mode Active
VIN Quiescent Current
Buck
Pulse-Skip Mode Active
VIN Quiescent Current
Linear Regulator VIN Quiescent
Current
VIN Shutdown Quiescent
Current
LVIN Shutdown Quiescent
Current
CONDITIONS
VIN = 4.2V (Note 8)
(Note 4)
VIN = 2.7V to 5.5V, ENBUCK = VIN,
ENVLDO = 0V, MODE = VIN (Note 6)
VIN = 2.9V to 5.5V, LVOUT = 1.5V, ENBUCK = VIN,
ENVLDO = VIN, MODE = 0V, IOUT(VLDO) = 100mA
VIN = 2.9V to 5.5V, LVOUT = 1.5V, ENBUCK = 0V,
ENVLDO = VIN, IOUT(LDO) = 10mA
LVIN = 1.6V to 5.5V, VIN = 5.5V, LVOUT = 1.5V,
ENBUCK = VIN, ENVLDO = VIN, MODE = VIN,
IOUT(VLDO) = 100mA
LVOUT = 1.5V, ENBUCK = VIN, ENVLDO = VIN,
MODE = VIN, IOUT(VLDO) = 50mA (Note 9)
ENBUCK = VIN, ENVLDO = 0V, MODE = VIN (Note 6)
IOUT(VLDO) = 1mA – 300mA, LVIN = 1.875V, LVOUT =
1.5V, ENBUCK = VIN, ENVLDO = VIN, MODE = VIN
IOUT(LDO) = 1mA – 30mA, LVOUT = 1.5V,
ENBUCK = 0V, ENVLDO = VIN
ENBUCK = VIN, ENVLDO = 0V, TA = 25°C
ENBUCK = VIN, ENVLDO = 0V, 0°C ≤ TA ≤ 85°C
ENBUCK = VIN, ENVLDO = 0V, –40°C ≤ TA ≤ 85°C
ENBUCK = 0V, ENVLDO = VIN, TA = 25°C
ENBUCK = 0V, ENVLDO = VIN, 0°C ≤ TA ≤ 85°C
ENBUCK = 0V, ENVLDO = VIN, –40°C ≤ TA ≤ 85°C
LVIN = 1.875V, LVOUT = 1.5V, ENBUCK = VIN,
ENVLDO = VIN, MODE = 0V, IOUT(VLDO) = 10μA,
VVOUT = 2.11V
LVIN = 1.875V, LVOUT = 1.5V, ENBUCK = VIN,
ENVLDO = VIN, MODE = 0V, IOUT(VLDO) = 10μA,
VVOUT = 1.64V
LVIN = 1.875V, LVOUT = 1.5V, ENBUCK = VIN,
ENVLDO = VIN, MODE = VIN, IOUT(VLDO) = 10μA,
VVOUT = 1.64V
VVOUT = 2.11V, IOUT(BUCK) = 0A, ENBUCK = VIN,
ENVLDO = 0V, MODE = 0V
VVOUT = 1.64V, IOUT(BUCK) = 0A, ENBUCK = VIN,
ENVLDO = 0V, MODE = 0V
VVOUT = 1.64V, IOUT(BUCK) = 0A, ENBUCK = VIN,
ENVLDO = 0V, MODE = VIN
LVOUT = 1.5V, ENBUCK = 0V, ENVLDO = VIN,
IOUT(VLDO) = 10μA
ENBUCK = 0V, ENVLDO = 0V
LVIN = 3.6V, ENBUCK = 0V, ENVLDO = 0V
MIN
0.8
l 2.7
l
TYP MAX UNITS
0.95 1.25
A
5.5
V
0.04
0.4
%/V
2.2
mV/V
2.2
mV/V
0.8
mV/V
20
50
mV
0.5
%
l
0.25
0.5
%
l
0.25
0.5
%
1.837 1.875 1.913
V
1.833 1.875 1.917
V
l 1.828 1.875 1.922
V
1.47
1.5
1.53
V
1.466
1.5 1.534
V
l 1.462
1.5 1.538
V
85
μA
315
μA
300
μA
55
μA
300
μA
285
μA
50
μA
2.5
μA
0.1
μA
For more information www.linear.com/LTC3541-2
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