National LM2931 Data Handbook and Specifications

Summary

The LM2931 series low dropout regulators are engineered for highly efficient standby power systems due to their ultra-low quiescent current and stable operation. This manual details fixed and adjustable versions available in multiple durable packages. Ideal for automotive and low-power electronics, it provides comprehensive protection features—including short circuit, thermal overload, and reverse battery defense—making it perfect for memory standby circuits, CMOS, and other demanding low-current processing systems.