ADP5034

Manufacturer Part NumberADP5034
DescriptionDual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs
ManufacturerAnalog Devices
ADP5034 datasheet
 


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