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 17-pin voltage regulator dc to dc.
CC15-2405SFP Features
1 outputs
CC15-2405SFP Applications
There are a lot of TDK-Lambda CC15-2405SFP Voltage Regulators applications.