Hi,
In the circuit below, it replaced the LM3671MF-1.8 in place of the existing SC189 and occurred during the function test.
[Defect symptom]
The output was lowered to 0.8V or less when the power was turned on during the test by installing it in the place of U16 of the above circuit.
It does not recover automatically and returns to normal output (1.8V) after reset.
The bad symptoms did not occur again afterwards.
[condition]
Vin: DC 5V
Vout: DC 1.8V
Iout: about 70mA (only used for memory power)
What is the cause of this defect?
In order to apply it as a replacement product, it is intended to accurately determine the cause of the defective symptom.
Take good care of me.
Thanks.
Regards,
MJ