Geekcreit® Mini DC-DC Converter Step Down Module Adjustable Power Supply
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I have tested this little switch-mode buck PSU and the specified data is very excessive. I ordered them to make a distributed grid for all my LED strips that I have up to 6 meters from the controller to the farthest strips and will provide them with unregulated 20-22V. My tests show that consumption above 1A will "burn" the little guy. Test Conditions: Input 21.3V, output 11V / 1A provides a temperature above 80 degrees (measured 84.1 degrees Celsius (54 degrees above ambient, after 2 minutes of operation) which is far above what I would allow in my own designs)
Works as intended. We have a stable output voltage with a wide range of input voltages. You must be careful that the minimum input voltage is 2 volts above the output voltage or you will notice a overshoot in the output. Does not work well as regulator from 5V to 3.3V because of this.