A venture in retrotronics
The pt1-OKIT3W32-4V5max is a robust and stable power supply providing four outputs, adjustable from 0.75V to 4.5V, at a maximum of 3A in total. The board is built around a Murata OKI-T/3-W32 DC-DC switching (buck) converter, not requiring a heat sink.
The input voltage can be anywhere between 9V and 32V, supplied through the screw connector or the barrel jack connector.
The module features an on-board fuse, protecting the circuit against sustained input reversal. The power output is protected against short circuits and over temperature. The converter will automatically restart as soon as the short circuit condition is removed.
Some translator logic has been added to the circuit to provide a (positive) logic ENABLE signal (e.g. 3.3/5V).