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LTC3370 Fiches technique(PDF) 7 Page - Linear Technology

No de pièce LTC3370
Description  4-Channel 8A Configurable Buck DC/DCs
PDF  24 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LTC3370 Fiches technique(HTML) 7 Page - Linear Technology

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LTC3370
7
3370fb
For more information www.linear.com/LTC3370
Typical perForMance characTerisTics
Enable Pin Precision Threshold
vs Temperature
Enable Threshold vs Temperature
Buck VIN Supply Current vs
Temperature
Buck VIN Supply Current vs
Temperature
VOUT vs Temperature
PMOS Current Limit vs
Temperature
Oscillator Frequency vs RT
VTEMP vs Temperature
TA = 25°C, unless otherwise noted.
RT (k)
250
4.0
3.5
2.0
1.0
3.0
2.5
1.5
0.5
0
450
400
3370 G10
350
300
500 550 600 650 700 750 800
VCC = 3.3V
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
–200
0
200
400
600
800
1000
1200
1400
3370 G11
ILOAD = 0mA
ACTUAL VTEMP
IDEAL VTEMP
VCC = 3.3V
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
0
10
20
30
40
50
3370 G14
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
Burst Mode OPERATION
FB = 850mV
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
0
50
100
150
200
250
300
350
400
450
500
550
3370 G15
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
FORCED CONTINUOUS MODE
FB = 0V
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
1.72
1.74
1.76
1.78
1.80
1.82
1.84
1.86
1.88
3370 G16
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
ILOAD = 0mA
FORCED CONTINUOUS MODE
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
2.0
2.1
2.2
2.3
2.4
2.5
2.6
3370 G17
VIN = 3.3V
PMOS RDS(ON) vs Temperature
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
150
200
250
300
350
400
450
500
550
3370 G18
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
EN RISING
EN FALLING
ALL REGULATORS DISABLED
VCC = 3.3V
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
350
400
450
500
550
600
650
700
750
800
850
900
3370 G12
EN RISING
EN FALLING
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
365
370
375
380
385
390
395
400
405
3370 G13



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