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| LTC3374 Datasheet, PDF (8/24 Pages) Linear Technology – 8-Channel Parallelable 1A Buck DC/DCs | |||
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LTC3374
TYPICAL PERFORMANCE CHARACTERISTICS
PMOS RDS(ON) vs Temperature
600
550
500
450
VIN = 2.25V
400
VIN = 3.3V
350
VIN = 5.5V
300
250
200
â50 â25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3374 G17
1A Buck Efficiency vs ILOAD
100
90
Burst Mode
80 OPERATION
70
60
FORCED
CONTINUOUS
50
MODE
40
VOUT = 2.5V
30
fOSC = 2MHz
L = 2.2µH
20
VIN = 2.7V
10
VIN = 3.3V
VIN = 5.5V
0
1
10
100
1000
LOAD CURRENT (mA)
3374 G20
NMOS RDS(ON) vs Temperature
600
550
500
450
VIN = 2.25V
400
VIN = 3.3V
350
300
VIN = 5.5V
250
200
â50 â25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3374 G18
2A Buck Efficiency vs ILOAD
100
90
80
Burst Mode
OPERATION
70
60
50
FORCED
CONTINUOUS
MODE
40
VOUT = 1.8V
30
fOSC = 2MHz
L = 2.2µH
20
VIN = 2.25V
10
VIN = 3.3V
VIN = 5.5V
0
1
10
100
1000
LOAD CURRENT (mA)
3374 G21
1A Buck Efficiency vs ILOAD
100 Burst Mode OPERATION
90
80
70
60
FORCED
CONTINUOUS
50
MODE
40
VOUT = 1.8V
30
fOSC = 2MHz
L = 2.2µH
20
VIN = 2.25V
10
VIN = 3.3V
VIN = 5.5V
0
1
10
100
1000
LOAD CURRENT (mA)
3374 G19
2A Buck Efficiency vs ILOAD
100
90
Burst Mode
80 OPERATION
70
60
50
FORCED
CONTINUOUS
MODE
40
VOUT = 2.5V
30
fOSC = 2MHz
L = 2.2µH
20
VIN = 2.7V
10
VIN = 3.3V
VIN = 5.5V
0
1
10
100
1000
LOAD CURRENT (mA)
3374 G22
3A Buck Efficiency vs ILOAD
100
90
80
70 Burst Mode
OPERATION
60
50
40
30
20
10
0
1
10
FORCED
CONTINUOUS
MODE
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
100
1000
LOAD CURRENT (mA)
3374 G23
3A Buck Efficiency vs ILOAD
100
90
80
70
Burst Mode
OPERATION
60
50
FORCED
CONTINUOUS
MODE
40
VOUT = 2.5V
30
fOSC = 2MHz
L = 2.2µH
20
VIN = 2.7V
10
VIN = 3.3V
VIN = 5.5V
0
1
10
100
1000
LOAD CURRENT (mA)
3374 G24
3374f
8
For more information www.linear.com/LTC3374
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