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LM2596: M2596

Part Number: LM2596

The schematic in the datasheet for a negative voltage power supply does not seem to work. Please advise.

I am using a SS34 diode for both D1 and D2 and just a standard diode for D3.  I'm using a 100 uF cap for CIN. I have checked the circuit multiple times and it in only produces .1 volts at the ouput.