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LTC3371 Datasheet(PDF) 9 Page - Linear Technology

Part # LTC3371
Description  4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3371 Datasheet(HTML) 9 Page - Linear Technology

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LTC3371
9
3371fa
For more information www.linear.com/LTC3371
Typical perForMance characTerisTics
3A Buck Efficiency vs ILOAD,
VOUT = 1.8V
3A Buck Efficiency vs ILOAD,
VOUT = 2.5V
4A Buck Efficiency vs ILOAD,
VOUT = 1.8V
4A Buck Efficiency vs ILOAD,
VOUT = 2.5V
1A Buck Efficiency vs ILOAD
(Across Operating Frequency)
1A Buck Efficiency vs Frequency
(Forced Continuous Mode)
2A Buck Efficiency vs ILOAD,
VOUT = 2.5V
TA = 25°C unless otherwise noted.
1A Buck Power Loss vs ILOAD,
VOUT = 3.3V
2A Buck Efficiency vs ILOAD,
VOUT = 1.8V
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G29
0
1
100
1000
10
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
BURST MODE
FORCED
CONTINUOUS
MODE
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G30
0
1
100
1000
10
VOUT = 2.5V
fOSC = 2MHz
L = 2.2µH
VIN = 2.7V
VIN = 3.3V
VIN = 5.5V
VIN = 2.7V
VIN = 3.3V
VIN = 5.5V
BURST MODE
FORCED
CONTINUOUS
MODE
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G31
0
1
100
1000
10
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
BURST MODE
FORCED
CONTINUOUS
MODE
LOAD CURRENT (mA)
300
900
1000
200
100
800
500
700
600
400
3371 G28
0
1
100
1000
10
BURST MODE
VOUT = 3.3V
fOSC = 2MHz
L = 2.2µH
VIN = 4.2V
VIN = 5.5V
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G32
0
1
100
1000
10
VOUT = 2.5V
fOSC = 2MHz
L = 2.2µH
VIN = 2.7V
VIN = 3.3V
VIN = 5.5V
VIN = 2.7V
VIN = 3.3V
VIN = 5.5V
BURST MODE
FORCED
CONTINUOUS
MODE
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G33
0
1
100
1000
10
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
BURST MODE
FORCED
CONTINUOUS
MODE
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G34
0
1
100
1000
10
VOUT = 2.5V
fOSC = 2MHz
L = 2.2µH
VIN = 2.7V
VIN = 3.3V
VIN = 5.5V
VIN = 2.7V
VIN = 3.3V
VIN = 5.5V
BURST MODE
FORCED
CONTINUOUS
MODE
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
3371 G35
0
1
100
1000
10
VOUT = 1.8V
VIN = 3.3V
fOSC = 1MHz, L = 3.3µH
fOSC = 2MHz, L = 2.2µH
fOSC = 3MHz, L = 1µH
fOSC = 1MHz, L = 3.3µH
fOSC = 2MHz, L = 2.2µH
fOSC = 3MHz, L = 1µH
FORCED
CONTINUOUS
MODE
BURST MODE
FREQUENCY (MHz)
1
1.8
2.8
1.4
2.4
2.2
3371 G36
3
1.6
2.6
1.2
2
30
90
100
20
10
80
50
70
60
40
0
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
VOUT = 1.8V
ILOAD = 100mA
L = 3.3µH


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