The APV-16E-5 is a part manufactured by Mean Well, a Taiwanese company that specializes in the production of power supplies and related components. It is a 16W DC-DC converter, which is capable of regulating output voltage with very high precision. It features an isolated case, and is designed for applications which require the utmost reliability. The input range is 4.75 – 5.5 V DC, while the output range is 3.3 – 5 V DC, with maximum efficiency of 82%. It also features power good, under voltage lock out, auto restart, and over voltage protection.