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SM74611: Observing Voltage dip of approximately 0.7V on 3.3V DC in forward bias

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Part Number:SM74611

Hi,

   We are using SM74611 diode in one of our applications. Our requirement is to pass 3.3V to target device from on board 3.3V source with reverse polarity protection.

We've chosen SM74611 part which is matching our requirements as the forward voltage drop is very low i.e around 26mV.

But we are facing issue with this part. 3.3V output from the diode experiencing 0.7V dip whereas input to the diode is stable 3.3V, here the load is 10mA.

We don't understand the behaviour of SM74611 and trying to figure out reason for this issue, but unable to find.

schematic is attached. Can anyone help me on solving this?

Thanks

Srikanth

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