LM2674M-3.3 LM2674M-3.3 / NOPB LM2674M-3.3(UMW) LM2674M-3.3/NOPB LM2674M-3.3-NOP8 LM2674M-33 LM2674M-5 LM2674M5.0 LM2674M-5.0 LM2674M-5.0 IC