LMR14030-Q1: About the oscillation in DCM

Lee, Sam

Part Number: LMR14030-Q1

Hello team,

A customer asks about the oscillation of SW node waveform in DCM mode.

Can you provivde the description in detals about why it happens?

Thanks,

Sam Lee

+1 Hangjie Wang over 3 years ago

Hi Sam,

The ringing is determined by the resonant loop formed by the inductor and by the parasitic capacitances of the MOSFET and of the diode.

Thanks

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