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Positive to Negative DC/DC

Other Parts Discussed in Thread: LM20323, LM2673, TPS54140, TPS54160, LM3102, LM22670, LMZ14203

Hi everyone,

I planning to use the LM20323 as a negative to positive DC/DC converter, but I don't know if it will work.

The input voltage is around +20V, the output must be -15V @300~600mA.

The Application Note 1157 address this use, but for LM2673.

It is possible to use the LM20323 to generate negative voltage, like the application note show?