ADP5040 Analog Devices, ADP5040 Datasheet - Page 22

• Manufacturer Part Number: ADP5040
• Description: Micro PMU with 1.2 A Buck Regulator and Two 300 mA LDOs
• Manufacturer: Analog Devices

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