LT3508 查看數據表（PDF） - Linear Technology
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LT3508 Datasheet PDF : 24 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT3508
Quiescent Current
5.0
TA = 25°C
4.5
VIN1
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
VIN2
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3508 G10
VC Voltages
2.5
2.0
CLAMP VOLTAGE
1.5
1.0
TO SWITCH
0.5
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3508 G11
Error Amp Output Current
35
30
SINKING
25
20
15
SOURCING
10
5
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3508 G12
Switch Voltage Drop
350
TA = 25°C
300
250
200
150
100
50
0
0
0.5
1
SWITCH CURRENT (A)
1.5
3508 G13
Boost Pin Current
35
TA = 25°C
30
25
20
15
10
5
0
0
0.5
1
SWITCH CURRENT (A)
1.5
3508 G14
SHDN Pin Current
120
TA = –45°C
100
TA = 125°C
80
TA = 25°C
60
40
20
0
0 5 10 15 20 25 30 35 40
SHDN PIN VOLTAGE (V)
3508 G15
Undervoltage Lockout
4.0
3.5
VIN1
3.0
2.5
VIN2
2.0
1.5
1.0
0.5
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3508 G16
3508fb
5
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