Datasheet

Data Sheet ADP1660
Rev. 0 | Page 9 of 28
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1
EFFICIENCY (%)
OUTPUT CURRENT (A)
V
IN
= 2.7V
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
11018-100
Figure 11. Efficiency vs. Output Current, Fixed 5 V Output Mode
–3
–2
–1
0
1
2
3
–40 –20 0 20 40 60 80 100 120
LED CURRENT ERROR (%)
TEMPERATURE (ºC)
100mA PER CHANNEL
200mA PER CHANNEL
500mA PER CHANNEL
750mA PER CHANNEL
11018-102
Figure 12. LED Current Error vs. Temperature
0
10
20
30
40
50
60
70
80
90
100
100 300 500 700 900 1100 1300 1500
EFFICIENCY (%)
OUTPUT CURRENT (mA)
V
IN
= 3.6V
V
IN
= 2.7V
11018-104
Figure 13. Efficiency (P
LED
/P
IN
) vs. LED Output Current
0
1
2
3
4
5
6
–40 –20 0 20 40 60 80 100 120
STANDBY CURRENT (µA)
TEMPERATURE (ºC)
V
IN
= 4.5V
V
IN
= 2.7V
11018-101
Figure 14. Standby Current vs. Temperature
–0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
–40 –20 0 20 40 60 80 100 120
LED MATCHING (%)
TEMPERATURE (ºC)
100mA PER CHANNEL
200mA PER CHANNEL
500mA PER CHANNEL
750mA PER CHANNEL
11018-103
Figure 15. LED Matching vs. Temperature