Data sheet, White led step-up converter ap3019a, Typical performance characteristics (continued) – Diodes AP3019A User Manual
Page 7: Wled forward voltage (v, Is 3.45v at i, Figure 9. quiescent current vs. input voltage
Data Sheet
WHITE LED STEP-UP CONVERTER AP3019A
May. 2010 Rev. 1.8 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics (Continued)
WLED forward voltage (V
F
) is 3.45V at I
F
=20mA, unless otherwise noted.
Figure 8. Shutdown Quiescent Current vs. Input Voltage
Figure 9. Quiescent Current vs. Input Voltage
Figure 10. Input Current in Output Open Circuit Figure 11. Frequency vs. Junction Temperature
vs. Input Voltage
-50
-25
0
25
50
75
100
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
F
requ
ency (MHz)
Junction Temperature (
o
C)
2
4
6
8
10
12
14
16
0
5
10
15
20
25
30
S
h
ut
d
o
w
n
Q
u
ie
s
c
en
t C
u
rr
e
nt
(
µ
A)
Input Voltage (V)
T
A
=25
O
C
0
2
4
6
8
10
12
14
16
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Q
u
ie
scent Curren
t
(m
A)
Input Voltage (V)
T
A
=-50
O
C
T
A
=25
O
C
T
A
=100
O
C
2.5
3.0
3.5
4.0
4.5
5.0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
In
put Curren
t
(m
A)
Input Voltage (V)