Voltage divider network, Low dropout linear regulator, linear voltage regulator

 LM217 Series 500 mA 1.2 to 37 V Adjustable SMT Voltage Regulator - TO-252

https://www.futureelectronics.com/p/semiconductors--analog--regulators-reference--linear-regulators/lm217mdt-tr-stmicroelectronics-2152788