Owner manual

Preliminary Datasheet
WHITE LED STEP-UP CONVERTER AP3036/A
Jul. 2012 Rev. 1.3. BCD Semiconductor Manufacturing Limited
6
2345678
72
74
76
78
80
82
84
86
88
90
Efficiency (%)
LED Numbers
V
IN
=3.6V
I
OUT
=20mA
0 100 200 300 400 500
0
400
800
1200
1600
Schottky Forward Voltage (mV)
Schottky Forward Current (mA)
0 2 4 6 8 101214161820
30
40
50
60
70
80
90
100
Shutdown Current (µA)
Input Voltage (V)
V
CRTL
=0V
048121620
2.8
3.0
3.2
3.4
3.6
3.8
Quiescent Current (mA)
Input Voltage (V)
V
FB
=1.0V
Typical Performance Characteristics
The WLED forward voltage (V
F
) is 3.45V at I
F
=20mA, unless otherwise noted.
Figure 4. Efficiency vs. LED’s Number Figure 5. Schottky Forward Voltage vs.
Schottky Forward Current
Figure 6. Shutdown Current vs. Input Voltage Figure 7. Quiescent Current vs. Input Voltage