LM2596HVT-12 LM2596HVT-12/LB LM2596HVT-12/NOPB LM2596HVT-12G LM2596HVT-3.3 LM2596HVT-3.3/LB LM2596HVT-3.3/NOPB LM2596HVT-3.3G LM2596HVT-5.0 LM2596HVT-5.0/LB