
ISL85415
英法fi效率曲线
5.018
5.016
输出电压(V)
5.014
5.012
5.010
5.008
5.006
5.004
V
IN
= 33V
0
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
输出负载( A)
V
IN
= 24V
V
IN
= 15V
输出电压(V)
V
IN
= 12V
V
IN
= 6V
F
SW
= 800kHz的,T
A
= +25°C
(续)
5.020
5.015
5.010
5.005
5.000
4.995
4.990
4.985
4.980
4.975
0
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
输出负载( A)
V
IN
= 15V
V
IN
= 33V
V
IN
= 24V
V
IN
= 12V
V
IN
= 6V
图11. V
OUT
调节与负载, PWM ,V
OUT
= 5V
图12. V
OUT
调节与负载, PFM ,V
OUT
= 5V
3.336
3.334
输出电压(V)
3.332
3.330
3.328
3.326
3.324
3.322
V
IN
= 33V
0
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
输出负载( A)
V
IN
= 24V
V
IN
= 15V
输出电压(V)
V
IN
= 12V
V
IN
= 5V
3.345
3.340
3.335
3.330
3.325
3.320
3.315
3.310
V
IN
= 33V
V
IN
= 24V
V
IN
= 12V
V
IN
= 5V
V
IN
= 15V
0
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
输出负载( A)
图13. V
OUT
调节与负载, PWM ,V
OUT
= 3.3V
图14. V
OUT
调节与负载, PFM ,V
OUT
= 3.3V
1.777
1.776
输出电压(V)
输出电压(V)
1.775
1.774
1.773
1.772
1.771
1.770
1.769
0
V
IN
= 24V
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
输出负载( A)
V
IN
= 33V
V
IN
= 5V
V
IN
= 15V
V
IN
= 12V
1.785
1.780
1.775
1.770
V
IN
= 12V
1.765
1.760
1.755
V
IN
= 24V
V
IN
= 33V
V
IN
= 5V
V
IN
= 15V
0
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
输出负载( A)
图15. V
OUT
调节与负载, PWM ,V
OUT
= 1.8V
图16. V
OUT
调节与负载, PFM ,V
OUT
= 1.8V
9
FN8373.2
2013年9月26日