Update on my project. I have tried both of the following buck converters with good results. I’m only running a fan, USB-Serial, and a soundcard so I’m not loading it much.
The DROC meter should not be believed but its not far off. Both have operated on my bench from the same DC supply that is running my IC-7300 and I haven't noticed any noise.
I have also used them on a Pi 3 and the most significant factor is getting away from off-the-shelf micro USB cords and using cords intended for power.
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So far no low voltage warnings on the Pi 3.
I have also added a Pi Power from Sunfounder and it seems to be working well. It has some suggested safe shutdown software so I am going to add that to the Pi.
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Thanks for the suggestions.
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73
Dave
WB9TEN
