Datasheet

ADP5033 Data Sheet
Rev. F | Page 12 of 28
4
2
T
1
CH1 50.0mV
CH4 5.00V
M 20.0µs A CH2 408mA
T 20.40%
CH2 200mA Ω
VOUT
I
OUT
SW
0
9788-017
Figure 27. BUCK1 Response to Load Transient, I
OUT1
from 20 mA to 180 mA,
V
OUT1
= 3.3 V, Auto Mode
4
2
T
1
CH1 100mV
CH4 5.00V
M 20.0µs A CH2 88.0mA
T 19.20%
CH2 200mA Ω
VOUT
I
OUT
SW
09788-018
Figure 28. BUCK2 Response to Load Transient, I
OUT2
from 20 mA to 180 mA,
V
OUT2
= 1.8 V, Auto Mode
4
1
3
T
2
CH1 5.00V
CH4 5.00V
M 400ns A CH4 1.90V
T 50.00%
CH2 5.00V
CH3 5.00V
VOUT1
VOUT2
SW1
SW2
09788-066
Figure 29. VOUT and SW Waveforms for BUCK1 and BUCK2 in PWM Mode
Showing Out-of-Phase Operation
2
3
1
CH1 100MA M 40.0µs A CH2 4.20V
T 159.400µs
CH2 5.00V
CH3 1.00V
VOUT
EN
I
IN
09788-022
Figure 30. LDO Startup, V
OUT3
= 1.8 V
3.294
3.295
3.296
3.297
3.298
3.299
3.300
3.301
3.302
3.303
3.304
0 0.1 0.2 0.3
V
OUT
(V)
V
IN
= 4.2V
I
OUT
(A)
V
IN
= 5.5V
V
IN
= 3.8V
09788-232
Figure 31. LDO Load Regulation Across Input Voltage, V
OUT3
= 3.3 V
1.792
1.793
1.794
1.795
1.796
1.797
1.798
1.799
1.8
1.801
1.802
0 0.1 0.2 0.3
V
OUT
(V)
I
OUT
(A)
+85°C
–40°C
+25°C
09788-233
Figure 32. LDO Load Regulation Across Temperature, V
IN3
= 3.6 V, V
OUT3
= 1.8 V