ADP5022 Analog Devices, ADP5022 Datasheet - Page 12

• Manufacturer Part Number: ADP5022
• Description: Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO
• Manufacturer: Analog Devices

ADP5022
Figure 30. Buck1 Response to Load Transient, I
Figure 28. Buck1 Response to Load Transient, I
Figure 29. Buck2 Response to Load Transient, I
4
1
2
4
1
2
4
1
2
CH1 50.0mV
CH1 50.0mV
CH1
VOUT
SW
I
VOUT
OUT
I
50.0mV
SW
OUT
T
T
T
B W
B W
B W
VOUT
VOUT1 = 3.3 V, Auto Mode
VOUT2 = 1.8 V, Auto Mode
I
VOUT1 = 3.3 V, Auto Mode
SW
OUT
CH2
CH4 5.00V
CH2
CH4 5.00V
CH2 200mA Ω
CH4 5.00V
50.0mA Ω
50.0mA Ω
B W
B W
B W
B W
B W
B W
M 20.0µs A CH2
M 20.0µs A CH2
M 20.0µs A CH2
T
T
T
20.40%
60.000µs
22.20%
OUT1
OUT1
OUT2
from 20 mA to 180 mA,
from 1 mA to 50 mA,
from 1 mA to 50 mA,
356mA
379mA
408mA
Rev. C | Page 12 of 28
Figure 31. Buck2 Response to Load Transient, I
Figure 32. VOUT and SW Waveforms for Buck1 and Buck2 in PWM Mode
4
1
2
2
3
1
4
2
1
3
CH1 100mV
CH1 5.00V
CH3 5.00V
CH1
CH3 5.00V
Figure 33. LDO Startup, VOUT3 = 3.0 V, I
2.00V
T
VOUT2
VOUT1
VOUT
SW1
SW2
EN
I
T
IN
Showing Out-of-Phase Operation
B W
B W
B W
B W
B W
VOUT2 = 1.8 V, Auto Mode
CH2 50.0mA Ω
CH2 200mA Ω
CH4
CH2
CH4 5.00V
VOUT
5.00V
I
5.00V
SW
OUT
T
B W
B W
B W
B W
B W
B W
M 20.0µs A CH2
M 400ns
M 40.0µs
T
T
T
19.20%
50.00%
11.20%
OUT2
from 20 mA to 180 mA,
A CH4
OUT3
A CH3
= 5 mA
88.0mA
1.90V
2.2V