Datasheet

ADP5020
Rev. 0 | Page 10 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 4.5 V, V
OUT1
= 2.8 V, V
OUT2
= V
OUT3
= 1.8 V, I
OUT
= 100 mA, C
4
= C
1
= 10 μF, C
2
= 4.7 μF, C
3
= 1 μF, T
J
= 25°C, unless otherwise noted.
3.5
3.0
2.5
2.0
1.5
1.0
0 30 60 90 120 150
LOAD CURRENT (mA)
LDO VOLTAGE (V)
07774-006
3.3V
3.0V
2.8V
2.5V
1.8V
2.0V
Figure 6. LDO Load Regulation
07774-007
I
LOAD
LDO
LDO OUTPUT = 20mV/DIV
I
LOAD
= 100mA/DIV
TIME = 100µs/DIV
Figure 7. LDO Load Transient
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
0
0 100 200 300 400 500 600
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
07774-008
V
OUT6
(3.3V)
V
OUT7
(3.7V)
V
OUT5
(3.2V)
V
OUT4
(3.0V)
V
OUT3
(2.9V)
V
OUT1
(2.5V)
V
OUT2
(2.8V)
Figure 8. Buck 1 Load Regulation
95
90
85
80
75
70
0 100 200 300 400 500 600
LOAD CURRENT (mA)
EFFICIENCY (%)
07774-009
V
OUT1
(2.5V)
V
OUT2
(2.8V)
V
OUT3
(2.9V)
V
OUT4
(3.0V)
V
OUT5
(3.2V)
V
OUT6
(3.3V)
V
OUT7
(3.7V)
Figure 9. Buck 1, Efficiency vs. Load Current
07774-010
I
LOAD
BUCK 1
BUCK 1 OUTPUT = 100mV/DIV
I
LOAD
= 100mA/DIV
TIME = 100µs/DIV
Figure 10. Buck 1 Load Transient Response
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
0
0 50 100 150 200 250 300
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
07774-011
V
OUT7
(1.7V)
V
OUT8
(1.8V)
V
OUT6
(1.6V)
V
OUT4
(1.4V)
V
OUT5
(1.5V)
V
OUT3
(1.3V)
V
OUT1
(1.1V)
V
OUT2
(1.2V)
Figure 11. Buck 2 Load Regulation