Datasheet

Data Sheet ADP5023
Rev. D | Page 9 of 28
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01 0.1
1
I
OUT
(A)
EFFICIENCY (%)
V
IN
= 3.9V
V
IN
= 4.2V
V
IN
= 5.5V
09889-038
Figure 9. BUCK1 Efficiency vs. Load Current, Across Input Voltage,
V
OUT1
= 3.3 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 (%)
V
IN
= 3.9V
V
IN
= 4.2V
V
IN
= 5.5V
09889-039
Figure 10. BUCK1 Efficiency vs. Load Current, Across Input Voltage,
V
OUT1
= 3.3 V, PWM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001 0.01 0.1 1
I
OUT
(A)
EFFICIENCY (%)
V
IN
= 2.3V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5.5V
09889-036
Figure 11. BUCK2 Efficiency vs. Load Current, Across Input Voltage,
V
OUT2
= 1.8 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 (%)
V
IN
= 2.4V
V
IN
= 3.6V
V
IN
= 4.5V
V
IN
= 5.5V
09889-035
Figure 12. BUCK2 Efficiency vs. Load Current, Across Input Voltage,
V
OUT2
= 1.8 V, PWM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001 0.01 0.1
1
I
OUT
(A)
EFFICIENCY (%)
V
IN
= 2.3V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5.5V
09889-034
Figure 13. BUCK1 Efficiency vs. Load Current, Across Input Voltage,
V
OUT1
= 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 (%)
V
IN
= 2.3V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5.5V
09889-035
Figure 14. BUCK1 Efficiency vs. Load Current, Across Input Voltage,
V
OUT1
= 0.8 V, PWM Mode