There is an optimized performance in this voltage regulator because it utilizes the Tube package. In this case, DC DC switching regulator has 1 outputs configured to it. DC DC switching regulators like this one generate Fixed outputs on their output pins to handle the power management. It has a 5-pin voltage regulator dc to dc.
REC10-4805SZ/H2/M/X2 Features
1 outputs
REC10-4805SZ/H2/M/X2 Applications
There are a lot of RECOM Power REC10-4805SZ/H2/M/X2 Voltage Regulators applications.