LTC3738 데이터 시트보기 (PDF) - Linear Technology
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LTC3738
Linear Technology
LTC3738 Datasheet PDF : 32 Pages
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LTC3738
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted.
Short-Circuit Arming and Latchoff
vs Temperature
5.0
4.5
4.0
ARMING
3.5
LATCHOFF
3.0
2.5
2.0
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3738 G10
SS Pull-Up Current
vs Temperature
2.5
2.0
1.5
1.0
0.5
0
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3738 G13
Percentage of Nominal Output
vs Peak ISENSE (Foldback)
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
PERCENTAGE OF NOMINAL OUTPUT VOLTAGE (%)
3738 G16
6
Supply Current vs Temperature
2.9
2.7
2.5
2.3
2.1
1.9
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3738 G11
Maximum Current Sense
Threshold vs Duty Factor
75
50
25
0
0
20
40
60
80 100
DUTY FACTOR (%)
3738 G14
Maximum Duty Factors
vs Temperature
100
VPLLFLTR = 0V
98
96
94
92
90
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3738 G17
Shutdown Current
vs Temperature
65
60
55
50
45
40
35
30
25
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3738 G12
Peak Current Threshold vs VITH
90
80
70
60
50
40
30
20
10
0
–10
–20
0
0.4 0.8 1.2 1.6 2.0 2.4
VITH (V)
3738 G15
Total ISENSE Current vs VOUT
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
VOUT (V)
3738 G18
3738f
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