LM2678S-3.3-TI LM2678S-3.3V LM2678S-5 LM2678S-5. LM2678S5.0 LM2678S-5.0 LM2678S-5.0/NOPB LM2678S-5.0/NOPB . LM2678S-5.0/NOPB. LM2678S-5V