I am in need for a 4V to 20V DC-DC step up boost converter. Do you supply these components?
We don’t carry many step-UP options…most of what we do sell is low-voltage (1.8-12v) or step-DOWN :-/
Check out Pololu.com, they have a lot of options
That is an usual specification, so you will probably need to look for an adjustable output converter like this one.
Keep in mind that to deliver 1A at 20V, a 90% efficient step up converter has to draw about 5.5A from the 4V source.