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I am currently designing a board using the ADP323 which requires only two of the outputs.  The third output will be disabled by connecting it directly to GND.  Is it necessary to connect the feedback pin on the third output to anything???

Question asked by WEBMONSTER Employee on May 6, 2011

When any input is not used on the dual or triple LDOs, ground the enable and float the input, output and feedback connection. Otherwise there may be additional leakage current.