LT3431 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
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Lista de partido
LT3431 Datasheet PDF : 28 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT3431
Switching Frequency
575
550
525
500
475
450
425
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3431 G10
VC Pin Shutdown Threshold
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3431 G13
Minimum Input Voltage
with 5V Output
7.5
7.0
6.5
MINIMUM INPUT
VOLTAGE TO START
6.0
5.5
MINIMUM INPUT
VOLTAGE TO RUN
5.0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
LOAD CURRENT (A)
3431 G11
Switch Voltage Drop
450
400
TJ = 125°C
350
300
TJ = 25°C
250
200
150
TJ = –40°C
100
50
0
0
1
2
3
SWITCH CURRENT (A)
3431 G14
Switch Peak Current Limit
6.00
5.50
5.00
4.50
4.00
3.50
3.00
2.50
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3431 G16
BOOST Pin Current
90
80
70
60
50
40
30
20
10
0
0
1
2
SWITCH CURRENT (A)
3
3431 G12
Switch Minimum ON Time
vs Temperature
600
500
400
300
200
100
0
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3431 G15
sn3431 3431fs
5
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