Datasheet

ADP5022
Rev. C | Page 10 of 28
100
90
80
70
60
50
40
30
20
10
0
0.001 0.01 0.1 1
I
OUT
(A)
EFFICIENCY (%)
08253-035
V
IN
= 5.5V
V
IN
= 4.5V
V
IN
= 3.6V
V
IN
= 2.4V
Figure 16. Buck2 Efficiency vs. Load Current, Across Input Voltage,
VOUT2 = 1.8 V, PWM Mode
100
90
80
70
60
50
40
30
20
10
0
0.0001 0.001 0.01 0.1 1
I
OUT
(A)
EFFICIENCY (%)
08253-034
V
IN
= 2.4V
V
IN
= 3.6V
V
IN
= 4.5V
V
IN
= 5.5V
Figure 17. Buck1 Efficiency vs. Load Current, Across Input Voltage,
VOUT1 = 0.8 V, Auto Mode
100
90
80
70
60
50
40
30
20
10
0
0.001 0.01 0.1 1
I
OUT
(A)
EFFICIENCY (%)
08253-065
V
IN
= 2.4V
V
IN
= 3.6V
V
IN
= 4.5V
V
IN
= 5.5V
Figure 18. Buck1 Efficiency vs. Load Current, Across Input Voltage,
VOUT1 = 0.8 V, PWM Mode
100
90
80
70
60
50
40
30
20
10
0
0.0001 0.001 0.01 0.1 1
I
OUT
(A)
EFFICIENCY (%)
08253-062
T
A
= –40°C
T
A
= +25°C
T
A
= +85°C
Figure 19. Buck1 Efficiency vs. Load Current, Across Temperature,
VOUT1 = 3.3 V, Auto Mode
100
90
80
70
60
50
40
30
20
10
0
0.0001 0.001 0.01 0.1 1
I
OUT
(A)
EFFICIENCY (%)
08253-063
T
A
= +25°C
T
A
= –40°C
T
A
= +85°C
Figure 20. Buck2 Efficiency vs. Load Current, Across Temperature,
VOUT2 = 1.8 V, Auto Mode
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
0 0.1 0.2 0.3 0.4 0.60.5
OUTPUT CURRENT (A)
FREQUENCY (MHz)
08253-040
T
A
= +25°C
T
A
= –40°C
T
A
= +85°C
Figure 21. Buck2 Switching Frequency vs. Output Current, Across
Temperature, VOUT2 = 1.8 V, PWM Mode