Application Note 1907
9
AN1907.0
February 10, 2014
Efficiency Performance
FIGURE 12. EFFICIENCY vs LOAD CURRENT (5V
OUT
AT 300kHz)
FIGURE 13. EFFICIENCY vs LOAD CURRENT (12V
OUT
)
FIGURE 14. EFFICIENCY vs LOAD CURRENT (24V
OUT
)
50
55
60
65
70
75
80
85
90
95
100
0 1 2 3 4
24V
IN
TO 5V
OUT
300kHz
36V
IN
TO 5V
OUT
300kHz
48V
IN
TO 5V
OUT
300kHz
EFFICIENCY (%
)
LOAD CURRENT (A)
60
65
70
75
80
85
90
95
100
0 1 2
3
4
80V
IN
TO 12V
OUT
350kHz
64V
IN
TO 12V
OUT
350kHz
36V
IN
TO 12V
OUT
400kHz
48V
IN
TO 12V
OUT
400kHz
24V
IN
TO 12V
OUT
400kHz
E
F
F
ICIENCY (%
)
LOAD CURRENT (A)
60
65
70
75
80
85
90
95
100
0 1 2 3 4
EFFICIENCY (%
)
LOAD CURRENT (A)
80
VIN
TO 24V
OUT
350kHz
48V
IN
TO 24V
OUT
450kHz
64V
IN
TO 24V
OUT
400kHz
