L4931 Product Description
L4931 is a STMicroelectronics Low Dropout Regulator (LDO) series intended for automotive and battery-powered systems. The series is associated with an output-current class of 250 mA and package options that include SOIC-8. Because the supplied keyword is a product family rather than a complete orderable suffix, the exact output voltage, package code, electrical limits and lifecycle status must be confirmed before quotation.
Datasheet search: https://www.alldatasheet.net/view.jsp?Searchword=L4931
Manufacturer source: https://www.st.com/en/power-management/l4931.html

