Hello MPSer,
I have quesiotn about MP28167-A.
In my design request is input spec from 3V to 4.2V and output regulation 3.3V.
I seems the the datasheet has recommended FB circuit design, but no recommended 3.3V setting.
May I know the RT resistor function and how to design it?
Hello john.du,
I have seen your response and will get to it as soon as possible. I apologize for the delay, we are currently very limited on bandwidth.
Thank you,
Vinh Tran
Field Applications Engineer
Hello john.du,
Unfortunately, there is no equation to calculate Rt directly. Rt is used for loop stability. You can decrease Rt to get a faster response, but stability should be the first requirement. For 3.3V, Rt around 900k should be appropriate. For other values, please follow the DS and adjust from there.
Thank you,
Vinh Tran
Field Applications Engineer
Dear Vinh,
Noted with thanks!
John