Other Parts Discussed in Thread: LM5141
I previously designed a variable power supply (controlled via an EE-Pot by a micro) that operated from 44-56 VDC input, the variable output voltage range being 11-39V at 80W above 16V and capped at 5A below 16V; this used a switcher IC that had internal compensation - I picked such due to the ride range of the output. I now need a similar design (same input voltage range) but the output varies from 5V to 24V, output being 85W for 12V and above and capped at ~8A below 12V. I thought it would be wise to stick to an internal compensation switcher but have yet to find one that can handle these parameters, so I was looking for direction on this new design:
- Is the internal compensation critical?
- If not how do I pick design values for the compensation? If I use Webench and try a few data points (say 5V, 12V, and 24V) the circuitry is vastly different