С39, С40, С41, С42 0805 – X5R – 10 V – 4,7 mF ± 20 %
С43, С44 0805 – X7R – 25 V – 0,1 mF ± 20 %
С45…С47 D – 10 V – 47 mF ± 20 % – LO ESR
R23 0805 – 0,125 – 0 Om
L2, L3, L4 BLM21PG600SN1D (Murata)
L5…L7 SDR0403-330KL 33 uH (Bourns)
U2, U3 DCR010505U
U2 <50 mA
U3 < 40 mA
I use DCR010505U in the measurement instrument. See the circuit above. I’ve bought 12 pieces. 6 pieces of them are working, and 6 pieces of them have failed instantly after turn on. I have changed C41 C42 to 1,0 mF as recommended on the datasheet, but it have not helped.
Are working number 16Z390H, 79FY13H
Failed 85EF48H, 01Z07H
Sorry! It is circuit from my post
I received an e-mail. Working directly with customer.
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