Datasheet

ADP5040 Data Sheet
Rev. 0 | Page 8 of 40
TYPICAL PERFORMANCE CHARACTERISTICS
VIN1 = VIN2 = VIN3 = AVI N = 5.0 V, T
A
= 25°C, unless otherwise noted.
CH4 2.0V/DIV 1MΩ
B
W
500M
CH2 2.0V/DIV 1MΩ
B
W
20.0M
CH3 2.0V/DIV 1MΩ
B
W
500M
A CH2 1.88V 200µs/DIV
1.0MS/s
1.0µs/pt
4
2
3
V
OUT1
V
OUT2
V
OUT3
09665-003
Figure 3. 3-Channel Start-Up Waveforms
CH1
CH2
CH3
CH4
A CH1 1.08V 200µs/DIV
5.0MS/s
200ns/pt
1
2
3
4
V
OUT3
V
OUT2
V
OUT1
I
IN
2.0V/DIV 1MΩ
B
W
20.0M
2.0V/DIV 1MΩ
B
W
20.0M
300mA/DIV 1MΩ
B
W
20.0M
2.0V/DIV 1MΩ
B
W
20.0M
09665-004
Figure 4. Total Inrush Current, All Channels Started Simultaneously
1.0
0
2.4 2.9 3.4 3.9 4.4 4.9 5.4
I
IN
(mA)
V
IN
(V)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
09665-005
Figure 5. System Quiescent Current (Sum of All the Input Currents) vs.
Input Voltage
V
OUT1
= 1.8 V, V
OUT2
= V
OUT3
= 3.3 V, (UVLO = 3.3 V)
CH1
CH2
CH3
CH4
A CH1 2.32V 50µs/DIV
2.0MS/s
500ns/pt
1
2
3
4
SW
V
OUT1
EN
I
IN
4.0V/DIV 1MΩ
B
W
20.0M
3.0V/DIV 1MΩ
B
W
500M
200mA/DIV 1MΩ
B
W
20.0M
5.0V/DIV 1MΩ
B
W
500M
09665-006
Figure 6. Buck Startup, V
OUT1
= 3.3 V, I
OUT2
= 20 mA
CH1
CH2
CH3
CH4
A CH1 1.12V 50µs/DIV
2.0MS/s
500ns/pt
1
2
3
4
SW
V
OUT1
EN
I
IN
8.0V/DIV 1MΩ
B
W
20.0M
2.0V/DIV 1MΩ
B
W
500.0M
200mA/DIV 1MΩ
B
W
20.0M
5.0V/DIV 1MΩ
B
W
500.0M
09665-007
Figure 7. Buck Startup, V
OUT1
= 1.8 V, I
OUT
= 20 mA
CH1
CH2
CH3
CH4
A CH1 640mV 50µs/DIV
2.0MS/s
500ns/pt
SW
V
OUT1
EN
I
IN
8.0V/DIV 1MΩ
B
W
20.0M
2.0V/DIV 1MΩ
B
W
500.0M
200mA/DIV 1MΩ
B
W
20.0M
5.0V/DIV 1MΩ
B
W
500.0M
1
2
3
4
09665-008
Figure 8. Buck Startup, V
OUT1
= 1.2 V, I
OUT
= 20 mA