ADP5043 Analog Devices, ADP5043 Datasheet - Page 13

• Manufacturer Part Number: ADP5043
• Description: Micro-PMU with 0.8 A Buck, 300 mA LDO, Supervisory, Watchdog, and Manual Reset
• Manufacturer: Analog Devices

Data Sheet
Figure 27. Buck Response to Load Transient, I
Figure 28. Buck Response to Load Transient, I
3
1
2
2
1
3
4
2
3
CH1
CH2
CH3
CH1
CH2
CH3
CH2
CH3
CH4
VOUTx
LOAD
SW
VOUTx
VOUT1
LOAD
SW
EN
I
3V/DIV
50mA/DIV 1MΩ
Figure 29. LDO Startup, V
1V/DIV
IN
4V/DIV
50mV/DIV
50mA/DIV 1MΩ
4V/DIV
50mV/DIV 1MΩ
50mA/DIV 1MΩ
1MΩ
1MΩ
1MΩ
V
V
OUT1
OUT1
B
B
B
B
B
B
B
B
B
W
W
W
W
W
W
W
W
W
= 1.8 V, PWM Mode
= 3.3 V, Auto Mode
20.0M
20.0M
500M
500M
20.0M
20.0M
20.0M
20.0M
20.0M
OUT2
A CH3
A CH2
A CH3
= 3.3 V, I
OUT1
145mA
OUT1
1.14V
86mA
from 20 mA to 140 mA,
OUT2
= 20 mA to 180 mA,
= 5 mA
200µs/DIV
10MS/s
100ns/pt
200µs/DIV
50MS/s
20ns/pt
100µs/DIV
1MS/s
1.0µs/pt
Rev. A | Page 13 of 32
Figure 30. LDO Load Regulation Across Input Voltage, V
Figure 31. LDO Load Regulation Across Temperature, V
Figure 32. LDO Line Regulation Across Output Load, V
3.325
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.280
3.35
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
3.35
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
0.0001
0.0001
+85°C
+25°C
–40°C
3.6V
4.5V
5.0V
5.5V
100µA
1mA
10mA
100mA
150mA
3.5
0.001
0.001
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
V
4.5
OUT2
= 3.3 V
0.01
0.01
5.0
ADP5043
OUT2
0.1
0.1
OUT2
IN2
5.5
= 3.6 V,
= 3.3 V
= 3.3 V