AP5725
WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics (6 LEDs ; V IN = 3.6V ; I OUT = 25mA)
1
0.8
0.6
0.4
0.2
V IN vs. Shutdown Current
700
600
500
400
300
200
100
V IN vs. Quiescent Current
0
2.5
3
3.5
4
V IN (V)
4.5
5
5.5
0
2.5
3
3.5
4
V IN (V)
4.5
5
5.5
1.25
1.2
V IN vs. Frequency
100
95
V IN vs. Max Duty
1.15
90
1.1
1.05
1
85
80
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
0.3
0.28
0.26
0.24
0.22
0.2
V IN (V)
V IN vs. Feedback Voltage
0.3
0.28
0.26
0.24
0.22
0.2
V IN (V)
I OUT vs. Feedback Voltage
2.5
3
3.5
4
V IN (V)
4.5
5
5.5
0
10
20 30
I OUT (mA)
40
50
AP5725
Document number: DS31844 Rev. 3 - 2
5 of 17
www.diodes.com
July 2010
? Diodes Incorporated
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