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PMP21529 Control methodology

Part Number: PMP21529

Dear Sir/Madam,

I see in the provided schematic, except Iout1, Iout2 are sensed and provided to the digital controller, there are also signals CBC1, CBC2 and Iout2_sense. May I ask what is the use of CBC1, CBC2 and Iout_sense?

Thanks a lot!

Best regards,

Schematic file