STMicroelectronics 4V 0.375V SOT-23 LDO Voltage Regulator IC LD2981ABM40TR

4V FIXED POSITIVE LDO REGULATOR, 0.375V DROPOUT, PDSO5, SOT-23, 5 PIN Product overview: LD2981ABM40TR from STMicroelectronics is a LDO Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include LDO, 4V, 0.375V, SOT-23. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 4V, 0.375V, SOT-23, LDO Voltage Regulator IC, Linear Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 699-LD2981ABM40TR can be used for catalog matching and distributor lookup.