
AP5725
WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics (Continued)
90
I OUT vs. Efficiency
90
I OUT vs. Efficiency
85
80
75
70
65
60
V IN = 4.2V
V IN = 3.6V
4 LEDs ; L = 22uH
85
80
75
70
65
60
V IN = 4.2V
V IN = 3.6V
6 LEDs ; L = 22uH
0
5
10
15 20
I OUT (m A)
25
30
0
5
10
15
I OUT (mA)
20
25
30
V IN vs. Efficiency
100
90
80
70
60
50
40
3 LEDs
4 LEDs
6 LEDs
2.5
3
3.5
4
4.5
5
V IN (V)
AP5725
Document number: DS31844 Rev. 3 - 2
7 of 17
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