Tool/software:
The purpose of this design is to supply clean +12V and -12V for op-amp operations.
The circuit initially steps up 5V to ±14V, then uses LDOs to regulate the output to ±12V.
For +12V, the TLV1117I is used, and for -12V, the TPS7A3001 is used.
Please let me know of any questions.
Regards,
Andrew