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TPS546C20A: Vout transition

Ken Kwack
Prodigy 470 points
Part Number: TPS546C20A

Hello Team

On data sheet 7.3.8, I have some of questions about it.

Could I know the details in datasheet? Thank you!

 

  1. [Blue line in Figure 26] When Samsung use PMBus, Vout will be boot up from Boot up voltage and communicate with PMBus and settled to default output voltage.

I can see the waveform from Data sheet “7.3.8 Reset Vout”. But I need to know the value of voltage drop during (A) duration.

Could I know the voltage drop value during (A)?

  1. [Green line in Figure 26] If Samsung do not use PMBus, Vout don’t need to communicate with PMBus. So it looks (A), (B) will not be operated.

Then, What happened on duration from Pre-AVS Vout to Default Output Voltage? Does there voltage drop as well or Are there no voltage drop between them?