Datasheet

Data Sheet ADP5040
Rev. 0 | Page 23 of 40
NOISE (µV/√Hz)
100
10
1
0.1
0.01
1 10 100 1k
FREQUENCY (Hz)
10k 100k 1M
V
OUT3
= 3.3V, V
IN3
= 3.6V, I
LOAD
= 300mA
V
OUT3
= 1.5V, V
IN3
= 1.8V, I
LOAD
= 300mA
V
OUT3
= 2.8V, V
IN3
= 3.1V, I
LOAD
= 300mA
09665-115
Figure 93. LDO2 Noise Spectrum Across Output Voltage,
V
IN
= V
OUT
+ 0.3 V
100
10
1.0
0.1
0.01
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
NOISE (µV/
√Hz
)
V
OUT2
= 3.3V, V
IN2
= 3.6V, I
LOAD
= 300mA
V
OUT3
= 3.3V, V
IN3
= 3.6V, I
LOAD
= 300mA
V
OUT2
= 1.5V, V
IN2
= 1.8V, I
LOAD
= 300mA
V
OUT3
= 1.5V, V
IN3
= 1.8V, I
LOAD
= 300mA
V
OUT2
= 2.8V, V
IN2
= 3.1V, I
LOAD
= 300mA
V
OUT3
= 2.8V, V
IN3
= 3.1V, I
LOAD
= 300mA
09665-108
Figure 94. LDO1 vs. LDO2 Noise Spectrum
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
PSRR (dB)
1mA
10mA
100mA
200mA
300mA
09665-109
Figure 95. LDO2 PSRR Across Output Load,
V
IN3
= 3.3 V, V
OUT3
= 2.8 V
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
PSRR (dB)
1mA
10mA
100mA
200mA
300mA
09665-110
Figure 96. LDO2 PSRR Across Output Load,
V
IN3
= 3.1 V, V
OUT3
= 2.8 V
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
PSRR (dB)
1mA
10mA
100mA
200mA
09665-111
Figure 97. LDO2 PSRR Across Output Load,
V
IN3
= 5.0 V, V
OUT3
= 3.3 V
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
PSRR (dB)
1mA
10mA
100mA
200mA
300mA
09665-112
Figure 98. LDO2 PSRR Across Output Load,
V
IN3
= 3.6 V, V
OUT3
= 3.3 V