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LM5017 Synchronous Buck Converter and COT Slide 17
To review, when the switch node goes high, there is ripple at that node, but the RR and the CR shown in the diagram on this slide act as a low pass filter to create a ramp waveform. Then the signal couples in via the CAC to the feedback pin. The equation shown helps to select the values of those components.
PTM Published on: 2012-04-26