Synchronous rectifier in a diode package

Today let's take a closer look at a very interesting component. A synchronous rectification diode DK5V45R20 (marked 45R20). It's a synchronous rectification device that contains a MOSFET transistor and an integrated control circuitry in a 2-terminal package that looks like an ordinary diode. I initially didn't realize what I'm looking at. I found it inside of this night light with a USB charger:
https://youtu.be/qpACaRAI6yE

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Видео Synchronous rectifier in a diode package канала DiodeGoneWild