TPS54140: TPS54140 is able to output -15V .

HI 

yes, it can configure to inverting buck boost, but output capability will be less than 0.5A.

what means wiring example?

Thanks

thank you reply.

what means wiring example?→Yes.

Hi Aari:

you can refer below apps notes for inverting buck boost design with buck converter

https://www.ti.com/lit/an/snva856a/snva856a.pdf?ts=1626094327556&ref_url=https%253A%252F%252Fwww.ti.com%252Fsitesearch%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Den-US%2526searchTerm%253Dinverting%2Bbuck%2Bboost

Thanks

thanks reply.

Does this mention TPS54140?

Hi Arai:

it is a design guild how to configure a buck converter to inverting buck boost converter and what need to pay attention. even it doesn't mentioned about TPS54140, and it is a good design guild for TPS54140 configuration to 15V in and -15V out.

Thanks

thanks reply Daniel.

[ Minimum VIN for defined output  typ 0.95V max 1.5V ] on TPS54140 datasheet

It has been described as.

Does this mean that it must be 0.95V lower than the input 15V?

For example, is the maximum output of 15V input 14.05V?

Based on that, I thought that I could not output -15V with 15V input.

I'm waiting for a reply.