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LTC3370 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3370
Description  4-Channel 8A Configurable Buck DC/DCs
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3370 Datasheet(HTML) 6 Page - Linear Technology

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LTC3370
6
3370fb
For more information www.linear.com/LTC3370
Typical perForMance characTerisTics
Buck VIN Undervoltage Threshold
vs Temperature
VCC Supply Current vs
Temperature
VCC Supply Current vs
Temperature
RT Programmed Oscillator
Frequency vs Temperature
Default Oscillator Frequency vs
Temperature
Buck Efficiency vs ILOAD
Buck Power Loss vs ILOAD
VCC Undervoltage Threshold vs
Temperature
Oscillator Frequency vs VCC
TA = 25°C, unless otherwise noted.
LOAD CURRENT (mA)
3370 G01
100
90
80
40
30
20
10
70
50
60
0
1
1000
100
10
Burst Mode OPERATION
VIN = 3.3V
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
1A BUCK
2A BUCK
3A BUCK
4A BUCK
3000
2500
1000
500
2000
1500
0
1
1000
100
10
Burst Mode OPERATION
VIN = 3.3V
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
3370 G02
1A BUCK
2A BUCK
3A BUCK
4A BUCK
LOAD CURRENT (mA)
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
3370 G03
VCC RISING
VCC FALLING
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
3370 G04
VIN RISING
VIN FALLING
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
3371 G07
VCC = 2.7V
VCC = 3.3V
VCC = 5.5V
RT = 400k
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
3370 G08
VCC = 2.7V
VCC = 3.3V
VCC = 5.5V
VRT = VCC
VCC (V)
2.7
2.20
2.15
2.00
1.90
2.10
2.05
1.95
1.85
1.80
3.9
5.1
3.5
4.7
3370 G09
5.5
3.1
4.3
VRT = VCC
RT = 400k
AT LEAST ONE BUCK ENABLED
PLL/MODE = 0V
FB = 850mV
VCC = 2.7V
VCC = 3.3V
VCC = 5.5V
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
0
25
50
75
100
125
3370 G05
AT LEAST ONE BUCK ENABLED
PLL/MODE = 2MHz
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
0
40
80
120
160
200
240
280
320
360
400
3370 G06
VCC = 2.7V
VCC = 3.3V
VCC = 5.5V



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