Datasheet

C
C
= 1 nF
TPS65140, TPS65141
TPS65145
www.ti.com SLVS497E –SEPTEMBER 2003–REVISED NOVEMBER 2012
Figure 19. C
C
= 1 nF
Lastly, R
c
needs to be selected. A good practice is to use a 50-kΩ potentiometer and adjust the potentiometer for
the best load transient where no oscillations should occur. These tests have to be done at the highest V
in
and
highest load current because the 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
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