Typical Waveforms
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11
Typical Waveforms
Trace 4 = Inductor Current
Trace 3 = V
OUT
Trace 1 = SW Node
V
IN
= 12V, I
OUT
= 1Amp
Minimum Ripple Configuration (Option A)
Figure 13. Continuous Conduction Mode
Trace 4 = Inductor Current
Trace 3 = V
OUT
Trace 1 = SW Node
V
IN
= 12V, I
OUT
= 0
Figure 14. Discontinuous Conduction Mode
Trace 4 = Inductor Current
Trace 3 = V
OUT
Trace 1 = SW Node
V
IN
= 12V, I
OUT
= 0
Figure 15. Discontinuous Conduction Mode (Expanded Scale)
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AN-1933 LM25085A Evaluation Board
SNVA384B – February 2009 – Revised April 2013
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