Diodes AP3031 - Manual (Page 9)

Data Sheet
9
Dec. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited
WHITE LED STEP-UP CONVERTER AP3031
Typical Performance Characteristics (Continued)
Figure 16. Switch Saturation Voltage
vs. Switch Current
Figure 17. Case Temperature vs. Output Current
(WLED forward voltage (V
F
)=3.2V at I
F
=20mA, unless otherwise noted.)
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
0
50
100
150
200
250
300
350
400
450
500
550
600
650
Switc
h Sat
uration V
o
ltag
e
(mV
)
Switch Current (A)
T
A
=-40 o C
T
A
=25 o C
T
A
=85 o C
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340
30
35
40
45
50
55
60
65
70
75
80
C
as
e T
em
per
at
ur
e
( o
C)
Output Current (mA)
V
IN
=5V, V
OUT
=10V, T
A
=25 o C
C
IN
=10 μ F, C
OUT
=0.47 μ F, L=4.7 μ H