In this case, DC DC switching regulator has 1 outputs configured to it. ICs such as this voltage regulator are capable of generating Fixed outputs through their output pins. It has a 14-pin voltage regulator dc to dc.
PH-150F-280-5 Features
1 outputs
PH-150F-280-5 Applications
There are a lot of TDK-Lambda PH-150F-280-5 Voltage Regulators applications.