Datasheet

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TPS65100 , TPS65101
TPS65105
SLVS496C – SEPTEMBER 2003 – REVISED APRIL 2006
Figure 19. C
c
= 1 nF
Lastly, R
c
needs to be selected. A good practice is to use a 50-k Ω potentiometer and adjust the potentiometer
for best load transient where no oscillations should occur. These tests have to be done at the highest V
in
and
highest load current because converter stability is most critical under these conditions. Figure 20 , Figure 21 , and
Figure 22 show the fine tuning of the loop with R
c
.
Figure 20. Overcompensated (Damped Oscillation), R
c
Is Too Large
Figure 21. Undercompensated (Loop Is Too Slow), R
c
Is Too Small
17
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