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TPS54060: About Enable input of inverting output

Guru 19645 points
Other Parts Discussed in Thread: TPS54060, TPS54040A

When TPS54060 is used by Inverting output, does Enable become a negative voltage input?  

I seems to be inverted if Fig14 of the following application notes is seen. http://www.tij.co.jp/jp/lit/an/slva317b/slva317b.pdf

Request spec are Vin:24V/Vout:-16.8V/Iout:100mA.

Client uses with two or more TPS54040A, and they want to control by one Enable signal.

Best regards,

Satoshi