ADP5034 Analog Devices, ADP5034 Datasheet - Page 12

• Manufacturer Part Number: ADP5034
• Description: Dual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs
• Manufacturer: Analog Devices

ADP5034
Figure 27. BUCK1 Response to Load Transient, I
Figure 28. BUCK2 Response to Load Transient, I
Figure 29. VOUT and SW Waveforms for BUCK1 and BUCK2 in PWM Mode
4
1
2
2
3
1
4
4
1
2
CH1 100mV
CH1 5.00V
CH3 5.00V
CH1
50.0mV
VOUT2
VOUT1
SW1
SW2
T
T
B W
B W
Showing Out-of-Phase Operation
B W
B W
VOUT
I
SW
OUT
CH2 200mA Ω
CH4
CH2 200mA Ω
CH4 5.00V
CH4 5.00V
CH2
V
V
OUT1
OUT2
VOUT
5.00V
I
5.00V
OUT
SW
= 3.3 V, Auto Mode
= 1.8 V, Auto Mode
T
B W
B W
B W
B W
B W
B W
M 20.0µs A CH2
M 400ns
T
T
M 20.0µs A CH2
T
19.20%
50.00%
20.40%
OUT1
OUT2
A CH4
from 20 mA to 180 mA,
from 20 mA to 180 mA,
88.0mA
408mA
1.90V
Rev. A | Page 12 of 28
2.820
2.815
2.810
2.805
2.800
2.795
2.790
2.785
2.780
Figure 31. LDO Load Regulation Across Input Voltage, V
2
1
3
400
350
300
250
200
150
100
Figure 32. NMOS RDS
50
0
CH1
CH3 5.00V
0
2.3
Figure 30. LDO Startup, V
2.00V
T
VOUT
0.05
2.8
EN
I
IN
B W
B W
CH2 50.0mA Ω
3.3
0.10
ON
INPUT VOLTAGE (V)
vs. Input Voltage Across Temperature
V
I
IN
OUT
3.8
0.15
B W
B W
= 5.5V
OUT3
–40°C
+25°C
(A)
V
M 40.0µs
T
= 3.0 V, I
IN
11.20%
= 4.5V
V
4.3
IN
0.20
+125°C
= 5.0V
OUT3
A CH3
4.8
= 5 mA
Data Sheet
V
0.25
IN
= 3.3V
OUT3
2.2V
5.3
= 2.8 V
0.30