Can anyone please lead me in a way to design a buck-boost converter with only mosfet and microcontroller which could have variable output voltage. I read through articles which confused me a lot. If you could just point me to the right direction in this topic i will be grateful. May be a step by step guide.

Thanks,
Hari

 

Hi,

What have you done in the past in this area?
Any buck converters perhaps?

 

No I haven't done any buck converters. The problem is that I should come up with a buck-boost converter design in 2 weeks time.

 

Designs for such a converter using a uC are going to pretty rare. Why not use a purpose designed chip then you can simply follow the manufacturers application information?