创唯电子代理销售National Semiconductor, LM2597HVM-3.3/NOPB, LM2597HVM-5.0/NOPB, LM2597HVM-ADJ/NOPB, LM2597HVMX-12/NOPB, LM2597HVMX-3.3/NOPB, LM2597HVMX-5.0/NOPB, LM2597HVMX-ADJ/NOPB, LM2597HVN-12/NOPB, LM2597HVN-3.3/NOPB, LM2597HVN-5.0/NOPB, LM2597HVN-ADJ/NOPB, LM2597M-12/NOPB.