The schematic below comes from boost converter AP6714 [datasheet](https://www.diodes.com/assets/Datasheets/AP6714.pdf) - so I assume it's good, but it is very atypical.

* Most (all that I used) of the impulse power converters have VOUT connected to the coil. This one has VIN connected to the coil.
* Also why is this converter powered (VCC) from VOUT? How is it supposed to work? Usually you power PC from VIN.

[![enter image description here](https://i.stack.imgur.com/YEnqc.png)](https://i.stack.imgur.com/YEnqc.png)