LM4040A20IDBZRG4IC VREF SHUNT PREC 2.048V SOT23|TEXAS INSTRUMENTS|Lead free|RoHS Compliant LM4040AIM3-2.0/NOPB LM4040AIM3-2.1+T LM4050AEM3-2.0 LM4050AEM3X-2.0/NOPB LM4050AIM3-2.0/NOPB LM4050AIM3X-2.0/NOPB