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This is a 3.3V 1A switch-mode voltage regulator. It is a high-efficiency replacement for popular three-terminal linear regulators. It is pin-to-pin compatible with the common LM7805 linear regulators. The maximum output is 1A of continuous current. It is a true drop in replacement for a TO-220 LM7805.
All the required capacitors are included on the module, no external capacitors are required.
No heatsink required, even at 1A continuous.
The output voltage guaranteed to be within +/-4% tolerance.
The module has thermal shutdown and current limit protection.
Definitely no heatsink required.
The board is small in size and breadboard friendly, making it an ideal solutions for breadboard prototyping.
Now in Orange to make identification easier.
The photographs show an LM7805 next to the PSU2-3.3 module for a size comparison.