LT1737IS Просмотр технического описания (PDF) - Linear Technology
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LT1737IS Datasheet PDF : 28 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT1737
Minimum Switch On Time vs
Temperature
275
RTON = 50k
250
Minimum Enable Time vs
Temperature
275
RMINENAB = 50k
250
Enable Delay Time vs
Temperature
275
250
225
225
225
200
200
200
175
175
175
150
150
150
125
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1737 G10
125
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1737 G11
125
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1737 G12
Feedback Amplifier Output Current
vs FB Pin Voltage
80
60
40
20 TA = 25°C
TA = –55°C
0
–20
TA = 125°C
–40
–60
–80
1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40
FB PIN VOLTAGE (V)
1737 G13
Soft-Start Charging Current vs
Temperature
60
V(SFST) = 0V
50
Feedback Amplifier
Transconductance vs Temperature
1600
1400
1200
1000
800
600
400
200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1737 G14
Soft-Start Sink Current vs
Temperature
2.5
V(SFST) = 1.5V
2.0
40
1.5
30
1.0
20
0.5
10
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1737 G15
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1737 G16
1737f
5
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