Diodes AP2122 - Manual (Page 17)

Data Sheet
17
May. 2010 Rev. 1. 5 BCD Semiconductor Manufacturing Limited
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2122
10 100 1k 10k 100k
0
10
20
30
40
50
60
70
80
90
100
PSRR (dB)
Frequency (Hz)
AP2122-3.0
V
IN
=4V
I
OUT
=30mA
C
IN
=C
OUT
=1 µ F
Typical Performance Characteristics (Continued)
Figure 20. PSRR vs. Frequency
10 100 1k 10k 100k 1M
0
20
40
60
80
100
P
SRR (
d
B)
Frequency (Hz)
AP2122-1.5
V
IN
=2.5V
I
OUT
=30mA
C
IN
=C
OUT
=1 µ F
Figure 21. PSRR vs. Frequency