ADP5033 Analog Devices, ADP5033 Datasheet - Page 13

• Manufacturer Part Number: ADP5033
• Description: Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs
• Manufacturer: Analog Devices

Data Sheet
Figure 34. LDO Ground Current vs. Output Load, V
Figure 35. LDO Response to Load Transient, I
Figure 33. LDO Line Regulation Across Output Load, V
2
1
3.0
2.5
2.0
1.5
1.0
0.5
50
45
40
35
30
25
20
15
10
5
0
CH1
0
2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4
0
100mV
I
I
OUT
OUT
VOUT
I
I
0.05
OUT
T
OUT
I
OUT
= 300mA
= 150mA
I
OUT
= 100mA
= 1mA
CH2 100mA Ω
= 10mA
0.10
LOAD CURRENT (A)
V
OUT3
= 2.8 V
V
IN
I
0.15
OUT
(V)
M 40.0µs A CH2
T
= 100µA
19.20%
OUT3
0.20
IN3
from 1 mA to 80 mA,
= 3.3 V, V
0.25
OUT3
52.0mA
= 2.8 V
OUT3
= 2.8 V
Rev. A | Page 13 of 28
Figure 36. LDO Response to Line Transient, Input Voltage from 4.5 V to 5.5 V,
Figure 37. LDO Output Noise vs. Load Current, Across Input Voltage,
Figure 38. LDO Output Noise vs. Load Current, Across Input Voltage,
2
1
3
60
55
50
45
40
35
30
25
65
60
55
50
45
40
35
30
25
0.001
0.001
CH1 20.0mV
CH3
1.00V
VOUT
0.01
0.01
VIN
T
0.1
0.1
V
V
V
IN
V
IN
V
V
V
IN
IN
OUT3
OUT3
OUT3
= 5V
= 5V
I
I
= 3.3V
= 3.3V
LOAD
LOAD
= 2.8 V
= 2.8 V
= 3.0 V
M 100µs
1
1
T
(mA)
(mA)
28.40%
10
10
A CH3
100
100
ADP5033
4.80V