Datasheet

NCP1421
http://onsemi.com
6
TYPICAL OPERATING CHARACTERISTICS
50
60
70
80
90
100
1 10 100 1000
V
IN
= 1.5 V
V
OUT
= 1.8 V
L = 2.2 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25C
OUTPUT LOADING CURRENT, I
LOAD
/mA
EFFICIENCY/%
50
60
70
80
90
100
1 10 100 1000
V
IN
= 1.5 V
V
OUT
= 5.0 V
L = 2.2 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25C
OUTPUT LOADING CURRENT, I
LOAD
/mA
EFFICIENCY/%
50
60
70
80
90
100
1 10 100 1000
V
IN
= 2.0 V
V
OUT
= 3.3 V
L = 10 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25C
OUTPUT LOADING CURRENT, I
LOAD
/mA
EFFICIENCY/%
50
60
70
80
90
100
1 10 100 1000
V
IN
= 2.5 V
V
OUT
= 5.0 V
L = 6.8 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25C
OUTPUT LOADING CURRENT, I
LOAD
/mA
EFFICIENCY/%
50
60
70
80
90
100
1 10 100 1000
V
IN
= 2.5 V
V
OUT
= 3.3 V
L = 10 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25C
OUTPUT LOADING CURRENT, I
LOAD
/mA
EFFICIENCY/%
50
60
70
80
90
100
1 10 100 1000
Figure 8. Efficiency vs. Load Current
Figure 9. Efficiency vs. Load Current
Figure 10. Efficiency vs. Load Current Figure 11. Efficiency vs. Load Current
Figure 12. Efficiency vs. Load Current Figure 13. Efficiency vs. Load Current
V
IN
= 3.3 V
V
OUT
= 5.0 V
L = 12 H
C
IN
= 22 F
C
OUT
= 22 F
T
A
= 25C
OUTPUT LOADING CURRENT, I
LOAD
/mA
EFFICIENCY/%