LS5912 SOIC 8L-A LS5912 SOIC 8L-B LS5912 SOT-23 6L ROHS LS5912 TO-71 6L LS5912 TO-71 6L ROHS LS5912 TO-78 6L LS5912C SOIC 8L LS5912C SOT-23 6L LS5912C SOT-23 6L ROHS LS5912C TO-71 6L