LT3598EUF(RevA) Просмотр технического описания (PDF) - Linear Technology
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LT3598EUF Datasheet PDF : 24 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT3598
SHDN Pin Turn-On Threshold
1.5
1.4
1.3
1.2
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G01
SHDN Pin Current
50
45
40
–50°C
25°C
125°C
35
30
25
20
15
10
5
0
0 5 10 15 20 25 30 35
VSHDN (V)
3598 G02
Quiescent Current
6
5
4
3
2
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G03
Reference Voltage
1.240
1.235
1.230
1.225
VIN = 40V
VIN = 5V
VIN = 30V
1.220
1.215
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G04
Oscillator Frequency
3.0
2.5MHz
2.5
2.0
1.5
1MHz
1.0
0.5
0
–50 –25
200kHz
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G05
Switch Current Limit
2.8
2.4
2.0
1.6
1.2
0.8
0.4
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G06
Switch VCESAT
0.40
0.35
25°C
0.30
0.25
125°C
0.20
– 50°C
0.15
0.10
0.05
0
0 0.25 0.50 0.75 1.00 1.25 1.5O
SWITCH CURRENT (A)
3598 G07
Soft-Start Pin Current
15.0
12.5
10.0
7.5
5.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G08
Feedback Pin Voltage
1.24
1.23
VC = 1.5V
1.22
VC = 1V
1.21
1.20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3598 G09
3598fa
5
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