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question of Buck Convertor application with UCD7231

Other Parts Discussed in Thread: UCD7231, UCD9220

Question1 :

I had reflect of UCD7231 application circuit which possible of boost convertor from reverse think of buck convertor circuit .

I mean If  when I think that exchange to input and output, Is It applicable to Boost convertor?

In data sheet, UCD7231 have "SRE Mode pin" and I think UDC7231 can be control to both FET which is High side FET, Low side FET depend on SRE Mode pin status (high or Low).   

is this available to Boost convertor circuit?

If it can do that, may I receive application circuit or application note?

If can't, Let me know reson.

Question2 :

our current system need 5V/70A output.

also we'll use UCD7231 with multi phase control algorithm and review to ucd9220.

unfortunately, UCD9220's ADC resolution bit is just 12bit.

we need more high resolution of ADC.

So, We'd like to control disegn with DSP+ADC(high resolutin) insted of UCD9220 area.

If you can provide  multi phase algorithm. We can develop to sutable circuit design for our system.

May I receive multi phase algorithm?