VRM10.1 XPhaseTM/DirectFETTM High Efficiency Demo Board ...
VRM10.1 XPhaseTM/DirectFETTM High Efficiency Demo Board ...
VRM10.1 XPhaseTM/DirectFETTM High Efficiency Demo Board ...
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<strong>VRM10.1</strong> XPhase TM /DirectFET TM<br />
<strong>High</strong> <strong>Efficiency</strong> <strong>Demo</strong> <strong>Board</strong><br />
(DB3C)<br />
POWER LOSS of VRM<br />
The total power loss of the VRM is a better index on how much power can be delivered by this<br />
demo board. It is affected by switching frequency, number of phases, gate driver voltage, etc.<br />
36<br />
34<br />
32<br />
30<br />
28<br />
26<br />
24<br />
22<br />
20<br />
18<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
Total Power Loss vs. Load Current<br />
R415A (5-phase, 1.02MHz)<br />
R415A (5-phase, 810KHz)<br />
R415A (5-phase, 610KHz)<br />
R415A (5-phase, 410KHz)<br />
R407A (6-phase, 1.02MHz)<br />
R407A (6-phase, 415KHz)<br />
0 10 20 30 40 50 60 70 80 90 100 110 120 130<br />
Page 11 1/16/2004
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