Drop-in replacement of 3-terminal LM7805 or equivalent linear voltage regulator. Guaranteed 1A output current Wide input voltage range up to 4.5V to 17V High efficiency, greater than 70% for loads greater than 1mA, peak efficiency achieved of 90% at 300mA load current. Thermal shutdown and current limit protection Breadboard friendly Board dimensions are 0.51" x 0.75" or 12.9mm x 19mm excluding pins. With pins 1.09" or 27.75mm. Definitely no heatsink required. All components are mounted on one side of the PCB. Highest component is the plastic of the connector at 0.15", Next highest is the inductor at 0.121" including the thickness of the PCB Available with straight or right angled pins or without pins. Weighs only 0.04 Ounce or 1.3g, ideal for RC model aircraft or quadcopters Can drive inductive loads such as DC motors. 2.2MHz Switching Frequency Made in the USA
The photographs show an LM7805 next to the PSU2-3.3 module for a size comparison.
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Custom designed hardware at reasonable cost for small quantities.