SLUSBC8 – DECEMBER 2013
TYPICAL CHARACTERISTICS (continued)
80%
7.5
Load Current Rising
Load Current Falling
7
60%
70%
Efficiency (%)
50%
VRECT (V)
6.5
40%
30%
6
R
ILIM
= 524
20%
5.5
10%
RILIM = 524
RILIM = 1048
5
0.50
1.00
1.50
2.00
2.50
0
0.1
0.2
0.3
Load Current (A)
C002
C003
0%
0.00
0.4
0.5
0.6
Power (W)
Figure 6. Light Load System Efficiency Improvement Due to
Dynamic Efficiency Scaling Feature
7.5
5.025
Figure 7. V
RECT
vs. I
LOAD
at R
ILIM
= 524
Ω
RILIM = 524
RILIM = 1048
7
5.020
VRECT (V)
6.5
VOUT (V)
5.015
6
5.010
5.5
Increasing Load Current
5.005
5
0
0.1
0.2
0.3
Load Current (A)
C004
5.000
0.4
0.5
0.6
0
0.1
0.2
0.3
0.4
0.5
0.6
Output Current (A)
C005
Figure 8. V
RECT
vs. I
LOAD
at R
ILIM
= 524
Ω
and 1048
Ω
Figure 9. I
LOAD
Sweep (I-V Curve)
10
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