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TPS63070: Do a second regulator needed for with along with TPS63070?

Part Number: TPS63070

Dear TI,

I am currently using TPS63070 for my wireless board, where TPS63070 regulates USB supply for RF Front End to maintain 5V. Another reason TPS63070 was used for different battery voltages. Initially I had other issue where COM port resets when RF Front End supplied from TPS63070, but now this issue solved. But I suppose there is a switching delay with TPS63070, this need further confirmation on my side.

Question:

Is TPS63070 is appropriate regulator to use to regulate USB supply, and able to support fast WiFi RF transmission, if not, I am planning to split power management a per below,

a. When USB plugged in, I can use TI TPS7A52, and TPS63070 can be off,

b. When USB unplugged and board running on battery, TPS7A52 can be off and TPS63070 on and supply the entire board.

Is this a good approach to go and please comment or recommend where needed.

BRgds

Manimaran Kanesan