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16-38v to 12v 1a buck module:




I got a bag (around 100?) of these little buck regulators at a hamfest. They're discrete modules, with a fixed
output of 12 volts at up to 1 amp. Just three pins on the board - Vin, GND, and Vout.

These are Power Trends model PT5102V, with a 1995 date code. I found specs on what looks like a slightly newer
model with identical specs. These have the IC encapsulated and don't have the bottom plastic bracket.



PT5102C-Power-Trends.pdf (412 KB)


PT5100 pinout:


s-l1600:



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