LM2931S-5.0/NOPB LM2931S-5.0NOPB LM2931SX-5.0 LM2931SX-5.0/NOPB LM2931T LM2931T5.0 LM2931T-5.0 LM2931T-5.0/NOPB LM2931T-5.0G LM2931T-50