Diodes AP2318A - Manual (Page 8)

600mA LOW DROPOUT LINEAR REGULATOR AP1117M
Data Sheet
1A ULDO REGULATOR WITH ENABLE AP2318A
8
May. 2011 Rev 2. 0 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics(Continued)
Figure 8. Supply Current vs. Output Current
0 150 300 450 600 750 900 1050 1200 1350 1500
0
2
4
6
8
10
12
14
16
18
20
T
C
=25 o C
T
C
=-40 o C
T
C
=125 o C
AP2318A-ADJ
V
IN
=3.25V
V
OUT
=1.25V
Su
pp
ly
C
u
rre
nt
(m
A
)
Output Current (mA)
Figure 9. Supply Current vs. Output Current
0 150 300 450 600 750 900 1050 1200 1350 1500
0
2
4
6
8
10
12
14
16
18
20
AP2318A-ADJ
V
OUT
=1.25V
T
C
=25 o C
V
IN
=3.25V
V
IN
=2.5V
V
IN
=12V
Sup
p
ly Cu
rre
nt
(m
A)
Output Current (mA)
Figure 11. PSRR vs. Frequency
10 100 1k 10k 100k
0
10
20
30
40
50
60
70
80
90
100
P
SRR (
d
B)
Frequency (Hz)
AP2318A-ADJ
V
IN
=3V to 4V
V
OUT
=1.25V
C
IN
=1 µ F, C
OUT
=2.2 µ F
I
LOAD
=10mA
0 100 200 300 400 500 600 700 800 900 1000
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
AP2318A-ADJ
V
OUT
=2.5V
T
C
=-40 o C
T
C
= 25 o C
T
C
=125 o C
Dropo
ut
V
ol
tag
e
(V)
Output Current (mA)
Figure 10. Dropout Voltage vs. Output Current