Part number smd marking

[Achim1409]

Hello, iam looking for the part number of this smd part. Ist not from an amp, but maybe somebody could help anyway. It's from an antminer z9mini hashboard

 

[wintermute]

moved from car audio. posts relating to the move removed.

 

[JonSnell Electronic]

Use the make and model of the unit and get a schematic that will list the Mos FET.

 

[Mark Tillotson]

Its obviously a DC-DC converter given the caps and inductor.

 

[Achim1409]

Yes, I expect the Same. But I could not find anything according to the marking.

 

[Mark Tillotson]

Well you may be able to measure the output voltage, trace the circuit and go hunting through datasheets... The resistors and cap are likely the feedback network. Another clue you
could use is the operating frequency.

 

[Achim1409]

So, I had time to test the part on a working board. It seems to me, that it is a DC DC converter. MP2359.

The connections and layout is similar to the datasheet. Only r1 and r2 are different to the output voltage. According datasheet I need for 5v output r1 49.9kohm,r2 9,53kohm. But I have r1 8 kOhm, r2 1.39 kOhm. See attached pictures. Maybe someone can assist.