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App note: Bootstrap circuit in the buck converter

Posted on Sunday, March 10th, 2019 in app notes by DP

an_rohm_bootstrap_capacitor

App note from ROHM Semiconductor about bootstrap capacitor used in switching regulator chip. Link here (PDF)

This application note explains the step-up circuit using a bootstrap capacitor. In buck converters, this circuit is used when the highside switch is the N-ch MOSFET.

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