Datasheet

ADP222/ADP223/ADP224/ADP225 Data Sheet
Rev. D | Page 14 of 24
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10
100
1k
10k 100k 1M 10M
PSRR (dB)
FREQUENC
Y (Hz)
V
RIPPLE
= 50mV
V
IN
= 4.3V
V
OUT
= 3.3V
C
OUT
= 1µF
LOAD = 100
µA
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
09376-027
Figure 47. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 4.3, V V
OUTx
= 3.3 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
LOAD = 100 µ
A
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
V
RIPPLE
= 50mV
V
IN
= 3.8V
V
OUT
= 2.8V
C
OUT
= 1µ
F
09376-028
Figure 48. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 3.8 V, V
OUTx
= 2.8 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
V
RIPPLE
= 50mV
V
IN
= 2.8V
V
OUT
= 1.8V
C
OUT
= 1µF
09376-029
Figure 49. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 2.8 V, V
OUTx
= 1.8 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
V
RIPPLE
= 50mV
V
IN
= 2.5V
V
OUT
= 1.2V
C
OUT
= 1µF
09376-030
Figure 50. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 2.5 V, V
OUTx
= 1.2 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100
1k
10k
100k 1M
10M
PSRR (dB)
FREQUENCY (Hz)
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
V
RIPPLE
= 50mV
V
IN
= 3.8V
V
OUT
= 3.3V
C
OUT
= 1µF
09376-031
Figure 51. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 3.8 V, V
OUTx
= 3.3 V
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
V
RIPPLE
= 50mV
V
IN
= 3.3V
V
OUT
= 2.8V
C
OUT
= 1µF
09376-032
Figure 52. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 3.3 V, V
OUTx
= 2.8 V