LM2931 Datasheet PDF , STMicroelectronics : Very low drop voltage regulators with inhibit function
LM2931 equivalent die to USM LM2931 3-terminal positive voltage regulator for hybrid circuits and microwave power amplifiers known good die LM series from US Microwaves
LM 2931 Z-5.0: LDO voltage regulator 5V TO-92 at reichelt elektronik
LM2931 Datasheet - LDO Voltage Regulator ( Pinout )
2 PCS LM2931CT TO-220 LM2931 100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection Transistor Chip IC - AliExpress