10 sztuk 5V-60V do 1,25V-30V LM2576HV Moduł DC-DC Step Down
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Efficiency is not great. We tested at 48V input and 12V/0.74A output. The input current was 0.25A,which translates to an efficiency of only 75%. Maybe this is why they don't say anything about efficiency and don't show the input current in the photos.Of course still better than a linear step down converter but not really good.
good
Works just as described, great.