Other Parts Discussed in Thread: LM5156, LM5155
Can you tell me whether it is a coupled inductor or an uncoupled inductor?
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Hi Lin,
Thanks for using the e2e forum.
Are you referring to the LM5156 quickstart calculator tool in SEPIC topology?
For a SEPIC design, it is both possible to use a coupled or uncoupled inductor.
The calculator sheet uses a coupled inductor design.
You can compare this design to the LM5155 SEPIC EVM, which uses a coupled inductor.
https://www.ti.com/tool/LM5155EVM-SEPIC
Best regards,
Niklas