B0530W データシートの表示（PDF） - Linear Technology
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B0530W Datasheet PDF : 20 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT3474/LT3474-1
Boost Pin Current
60
TA = 25°C
50
40
30
20
10
Quiescent Current
3.0
TA = 25°C
2.5
2.0
1.5
1.0
0.5
Reference Voltage
1.260
1.255
1.250
1.245
1.240
0
0 250 500 750 1000 1250 1500
SWITCH CURRENT (mA)
3473 G12
Schottky Reverse Leakage
20
VR = 5V
15
10
5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3474 G15
Minimum Input Voltage,
One White Luxeon III Star
6
TA = 25°C
5
TO START
4
TO RUN
3
LED VOLTAGE
2
1
0
1.235
0 6 12 18 24 30 36
–50 –25 0 25 50 75 100 125
VIN (V)
TEMPERATURE (°C)
3474 G13
3474 G14
Schottky Forward Voltage Drop
500
TA = 25°C
400
300
200
100
Open-Circuit Output Voltage and
Input Current
60
8
TA = 25°C INPUT CURRENT
50
7
LT3474-1
6
40
5
LT3474
30
4
20
LT3474-1
3
LT3474
2
10
OUTPUT VOLTAGE
1
0
0
0
0
200 400 600 800 1000
0
10
20
30
40
FORWARD VOLTAGE (mV)
VIN (V)
3474 G19
3474 G16
Minimum Input Voltage,
Two Series Connected White
Luxeon III Stars
10
TA = 25°C
9
8
TO START
7 TO RUN
6
LED VOLTAGE
0
0 200 400 600 800 1000
LED CURRENT (mA)
3474 G17
5
0
200 400 600 800 1000
LED CURRENT (mA)
3474 G18
3474fd
5
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