Datasheet

Data Sheet ADP222/ADP223/ADP224/ADP225
Rev. D | Page 15 of 24
10
100
1k
10k 100k
1M 10M
PSRR (dB)
FREQUENCY (Hz)
V
RIPPLE
= 50mV
V
IN
= 2.5V
V
OUT
= 1.8V
C
OUT
= 1
µ
F
09376-033
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
LOAD = 300mA
Figure 53. Power Supply Rejection Ratio vs. Frequency,
V
IN
= 2.5 V, V
OUTx
= 1.8 V
CH2 10mVCH1 1V
CH3 10mV
B
W
B
W
M1µs A CH4 200mV
1
3
2
T 10.40%
B
W
V
IN
V
OUT2
V
OUT1
09376-034
Figure 54. Transient Line Response, V
OUTx
= 3.3 V and 2.8 V, V
IN
= 4 V to 5 V,
I
LOAD
= 10 mA
CH2 10mVCH1 1V
CH3 10mV
B
W
B
W
M4µs A CH4 200mV
1
3
2
T 9.8%
B
W
09376-035
V
IN
V
OUT2
V
OUT1
Figure 55. Transient Line Response, V
OUTx
= 1.2 V and 1.8 V, V
IN
= 4 V to 5 V,
I
LOAD
= 10 mA
CH2 10mVCH1 1V
CH3 10mV
B
W
B
W
M1µs A CH4 200mV
1
3
2
T 9.8%
B
W
09376-036
V
IN
V
OUT2
V
OUT1
Figure 56. Transient Line Response, V
OUTx
= 3.3 V and 2.8 V, V
IN
= 4 V to 5 V,
I
LOAD
= 300 mA
CH2 10mVCH1 1V
CH3 10mV
B
W
B
W
M1µs A CH4 200mV
1
3
2
T 10.00%
B
W
09376-037
V
IN
V
OUT2
V
OUT1
Figure 57. Transient Line Response, V
OUTx
= 1.2 V and 1.8 V, V
IN
= 4 V to 5 V,
I
LOAD
= 300 mA
CH2 50mVCH1 200mA
Ω
CH3 10mV
B
W
B
W
M10µs A CH1 200mA
1
3
2
T 10.20%
B
W
09376-038
V
OUT2
V
OUT1
LOAD CURRENT
ON V
OUT1
Figure 58. Transient Load Response, V
OUTx
= 3.3 V, I
LOAD
= 1 mA to 300 mA;
V
OUTx
= 2.8 V, I
LOAD
= 1 mA