Split rail DC/DC converter
Yes but redrawn looks like this.






simulate this circuit &ndash; Schematic created using CircuitLab

If done with 1 IC on a custom PCB it would look like 2 independent circuits with Nch for postive switches and Pch for negative.

Some are independent adjustable, others tracking single control adjustable and others fixed Buck regulators.

You can create a split rail +/-V out also with other IC's that  can share 1 inductor but multiple switches inside IC.

PSU AC-DC modules are pretty Cheap to buy these days online &lt; $0.5 to $0.1/Watt and you can get +/-5V free off your old PC MOBO or PSU