IRDC3899-P1V2
9/18/2012
11
Fig.16: Power loss versus load current
Fig.15: Efficiency versus load current
TYPICAL OPERATING WAVEFORMS
Vin=12.0V, Vo=1.2V, Io=0-9A, Room Temperature, no air flow
74
76
78
80
82
84
86
88
90
0.9
1.8
2.7
3.6
4.5
5.4
6.3
7.2
8.1
9
E
ff
icie
n
cy
[%
]
Io [A]
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
1
2
3
4
5
6
7
8
9
P
ow
e
r
Loss
[W
]
Io [A]