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LTC3731HG Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3731HG
Description  3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3731HG Datasheet(HTML) 6 Page - Linear Technology

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LTC3731H
3731hf
TYPICAL PERFOR A CE CHARACTERISTICS
Short-Circuit Arming and Latchoff
vs Temperature
Supply Current vs Temperature
RUN/SS Pull-Up Current vs
Temperature
Maximum ISENSE vs VRUN/SS
Peak Current Threshold vs VITH
Percentage of Nominal Output vs
Peak ISENSE (Foldback)
Maximum Duty Factor vs
Temperature
ISENSE Pin Current vs VOUT
Maximum Current Sense
Threshold vs Duty Factor
–50
0
25
50
75
–25
150
125
100
–50
0
255075
–25
150
125
100
–50
0
25
50
75
–25
150
125
100
–50
0
25
50
75
–25
150
125
100
0
1
3
4
5
2
0
0.5
1.5
2.0
3.0
2.5
1.0
0
0.4
2.0
1.6
2.4
2.8
1.2
0.8
TEMPERATURE (
°C)
3731H G10
90
92
96
98
100
94
TEMPERATURE (
°C)
3731H G17
TEMPERATURE (
°C)
3731H G11
TEMPERATURE (
°C)
3731H G12
100
80
60
40
20
0
VRUN/SS VOLTAGE (V)
0
80
70
60
50
40
30
20
10
0
4
3731H G13
1
2
3
56
VITH (V)
0
75
60
45
30
15
0
–15
0.6
1.2
1.8
2.4
3731H G15
PERCENTAGE OF NOMINAL OUTPUT VOLTAGE (%)
0
80
70
60
50
40
30
20
10
0
80
3731H G16
20
10
30
50
70
90
40
60
100
VOUT (V)
0
40
30
20
10
0
–10
–20
–30
3731H G18
2
5
1
34
ARMING
LATCHOFF
VPLLFLTR = 0V
VCC = 5V
VRUN/SS = 1.9V
DUTY FACTOR (%)
0
0
25
50
75
20
40
60
80
3731H G14
100


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