ADP5023 Analog Devices, ADP5023 Datasheet - Page 13

• Manufacturer Part Number: ADP5023
• Description: Dual 3 MHz, 800 mA Buck Regulator with One 300 mA LDO
• Manufacturer: Analog Devices

Data Sheet
Figure 34. LDO Load Regulation Across Temperature, V
Figure 35. LDO Line Regulation Across Output Load, V
3.45
3.40
3.35
3.30
3.25
3.20
3.15
Figure 33. PMOS RDS
3.0
2.5
2.0
1.5
1.0
0.5
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
250
200
150
100
0
50
0
2.3
0.05
2.8
0.10
ON
3.3
vs. Input Voltage Across Temperature
INPUT VOLTAGE (V)
I
OUT
V
3.8
0.15
IN
–40°C
(A)
(V)
4.3
0.20
+25°C
V
V
V
IN
IN
IN
IN3
4.8
= 4.2V, +85°C
= 4.2V, +25°C
= 4.2V, –40°C
I
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
+125°C
= 4.2 V, V
0.25
= 300mA
= 150mA
= 100mA
= 10mA
= 1mA
= 100µA
OUT3
5.3
= 2.8 V
OUT3
0.30
= 3.3 V
Rev. A | Page 13 of 28
Figure 38. LDO Response to Line Transient, V
Figure 36. LDO Ground Current vs. Output Load, V
Figure 37. LDO Response to Load Transient, I
2
1
2
1
3
50
45
40
35
30
25
20
15
10
CH1 20.0mV
CH3
CH1
5
0
0
100mV
1.00V
VOUT
VOUT
VIN
I
T
OUT
0.05
T
CH2 100mA Ω
0.10
V
OUT3
I
= 2.8 V
OUT
M 100µs
T
0.15
(A)
28.40%
M 40.0µs A CH2
T
19.20%
IN
= 4.5 V to 5.5 V, V
0.20
OUT3
IN3
A CH3
= 1 mA to 80 mA,
= 3.3 V, V
0.25
ADP5023
52.0mA
4.80V
OUT3
OUT3
= 2.8 V
= 2.8 V