Datasheet

ADP5052 Data Sheet
Rev. 0 | Page 12 of 40
0
10
20
30
40
50
60
70
80
90
100
0 0.2 0.4 0.6 0.8 1.0 1.2
EFFICIENCY (%)
I
OUT
(A)
f
SW
= 1.0MHz
f
SW
= 600kHz
f
SW
= 300kHz
10900-009
Figure 10. Channel 3/Channel 4 Efficiency Curve, V
IN
= 12 V, V
OUT
= 1.8 V,
FPWM Mode
0
10
20
30
40
50
60
70
80
90
100
0 0.1 1 2
EFFICIENCY (%)
I
OUT
(A)
10900-010
V
OUT
= 1.2V, FPWM
V
OUT
= 1.2V, AUTO PWM/PSM
V
OUT
= 1.8V, FPWM
V
OUT
= 1.8V, AUTO PWM/PSM
V
OUT
= 3.3V, FPWM
V
OUT
= 3.3V, AUTO PWM/PSM
Figure 11. Channel 3/Channel 4 Efficiency Curve, V
IN
= 12 V, f
SW
= 600 kHz,
FPWM and Automatic PWM/PSM Modes
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0 1 2 3 4
LOAD REGULATION (%)
I
OUT
(A)
10900-011
Figure 12. Channel 1 Load Regulation, V
IN
= 12 V, V
OUT
= 3.3 V, f
SW
= 600 kHz,
FPWM Mode
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0
LINE REGULATION (%)
INPUT VOLTAGE (V)
10900-012
Figure 13. Channel 1 Line Regulation, V
OUT
= 3.3 V, I
OUT
= 4 A,
f
SW
= 600 kHz, FPWM Mode
10900-013
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0 0.2 0.4 0.6 0.8 1.0 1.2
LOAD REGULATION (%)
I
OUT
(A)
Figure 14. Channel 3 Load Regulation, V
IN
= 12 V, V
OUT
= 3.3 V, f
SW
= 600 kHz,
FPWM Mode
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0
LINE REGULATION (%)
INPUT VOLTAGE (V)
10900-014
Figure 15. Channel 3 Line Regulation, V
OUT
= 3.3 V, I
OUT
= 1 A,
f
SW
= 600 kHz, FPWM Mode