EL7516
Typical Performance Curves
(Continued)
94
92
FREQUENCY (MHz)
90
EFFICIENCY (%)
88
86
84
82
80
78
76
0
200
400
600
I
OUT
(mA)
600kHz
800
1K
1.2K
1.2MHz
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.2
2.5
3
3.5
4
V
IN
(V)
4.5
5
5.5
FIGURE 19. EFFICIENCY vs I
OUT
FIGURE 20. FREQUENCY (1.2MHz) vs V
IN
670
660
FREQUENCY (kHz)
650
640
630
620
610
600
2.5
3
3.5
4
V
IN
(V)
4.5
5
5.5
EFFICIENCY (kHz)
93
91
89
87
85
83
81
0
200
400
600
800
1K
I
OUT
(mA)
FIGURE 21. FREQUENCY (600kHz) vs V
IN
FIGURE 22. EFFICIENCY - 5V V
IN
TO 9V V
OUT
@ 600kHz
0.4
LOAD REGULATION (%)
V
IN
= 3.3V
V
OUT
= 12V
I
OUT
= 50mA TO 300mA
0.2
0
200mV/DIV
-0.2
-0.4
0
200
400
600
800
1K
0.1ms/DIV
I
OUT
(mA)
FIGURE 23. LOAD REGULATION - 5V V
IN
TO 9V V
OUT
@ 600kHz
FIGURE 24. TRANSIENT REPONSE - 600kHz
7
FN7333.3
IRF [ INTERNATIONAL RECTIFIER ]
