AP2318A Datasheet, PDF (8/13 Pages) BCD Semiconductor Manufacturing Limited – 1A ULDO REGULATOR WITH ENABLE

600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Typical Performance Characteristics(Continued)
Data Sheet
AP1117M
AP2318A
20
18
16
14
12
10
AP2318A-ADJ
V =3.25V
IN
8
V =1.25V
OUT
6
T =25^oC
C
4
T =-40^oC
C
2
T =125^oC
C
0
0 150 300 450 600 750 900 1050 1200 1350 1500
Output Current (mA)
20
18
16
14
12
10
AP2318A-ADJ
V =1.25V
8
OUT
T =25^oC
6
C
V =3.25V
4
IN
V =2.5V
IN
2
V =12V
IN
0
0 150 300 450 600 750 900 1050 1200 1350 1500
Output Current (mA)
Figure 8. Supply Current vs. Output Current
Figure 9. Supply Current vs. Output Current
0.65
0.60 ^AP2318A-ADJ
V =2.5V
0.55
OUT
0.50
T =-40oC
C
0.45
T = 25oC
C
0.40
T =125oC
C
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.000
100 200 300 400 500 600 700 800 900 1000
Output Current (mA)
Figure 10. Dropout Voltage vs. Output Current
100
90
80
70
60
50
40
AP2318A-ADJ
30
V =3V to 4V
IN
V =1.25V
20
OUT
C =1µF, C =2.2µF
IN
OUT
10 I =10mA
LOAD
0
10
100
1k
10k
Frequency (Hz)
100k
Figure 11. PSRR vs. Frequency
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
8