Datasheet

ADP5040 Data Sheet
Rev. 0 | Page 22 of 40
CH2
CH3
A CH3 4.02V
2
V
OUT
20.0mV/DIV
1.0V/DIV
B
W
20.0M
3
1MΩ
B
W
20.0M
200µs/DIV
1.0MS/s
1.0µs/pt
V
IN
09665-087
Figure 87. LDO1, LDO2 Response to Line Transient, Input Voltage from
3.3 V to 3.8 V, V
OUT
= 1.8 V
CH2
CH3
A CH3 4.84V
2
V
OUT
20.0mV/DIV
1.0V/DIV
B
W
20.0M
3
1MΩ
B
W
20.0M
200µs/DIV
1.0MS/s
1.0µs/pt
V
IN
09665-088
Figure 88. LDO1, LDO2 Response to Line Transient, Input Voltage from
3.3 V to 3.8 V, V
OUT
= 1.2 V
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3.6 4.1 4.6 5.1 5.6
OUTPUT CURRENT (A)
V
IN
(V)
V
OUT
= 3.3V
09665-089
Figure 89. LDO1, LDO2 Output Current Capability vs. Input Voltage
LOAD (mA)
RMS NOISE (µV)
100
10
0.0001 0.001 0.01 0.1 1 10 100 1k
CH2; V
OUT
= 3.3V; V
IN
= 5V
CH2; V
OUT
= 3.3V; V
IN
= 3.6V
CH2; V
OUT
= 2.8V; V
IN
= 3.1V
CH2; V
OUT
= 1.5V; V
IN
= 5V
CH2; V
OUT
= 1.5V; V
IN
= 1.8V
09665-104
Figure 90. LDO1 Output Noise vs. Load Current, Across Input and
Output Voltage
LOAD (mA)
RMS NOISE (µV)
100
10
CH3; V
OUT
= 3.3V; V
IN
= 5V
CH3; V
OUT
= 3.3V; V
IN
= 3.6V
CH3; V
OUT
= 2.8V; V
IN
= 3.1V
CH3; V
OUT
= 1.5V; V
IN
= 5V
CH3; V
OUT
= 1.5V; V
IN
= 1.8V
0.0001 0.001 0.01 0.1 1 10 100 1k
09665-105
Figure 91. LDO2 Output Noise vs. Load Current, Across Input and Output
Voltage
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
NOISE (µV/√Hz)
100
10
1.0
0.1
0.01
V
OUT2
= 3.3V, V
IN2
= 3.6V, I
LOAD
= 300mA
V
OUT2
= 1.5V, V
IN2
= 1.8V, I
LOAD
= 300mA
V
OUT2
= 2.8V, V
IN2
= 3.1V, I
LOAD
= 300mA
09665-106
Figure 92. LDO1 Noise Spectrum Across Output Voltage,
V
IN
= V
OUT
+ 0.3 V