https://www.futureelectronics.com/p/semiconductors--analog--regulators-reference--linear-regulators/lm317d2t-tr-stmicroelectronics-8253809
STMicroelectronics, LM317D2T-TR, Regulators & References, Linear Regulators
LM317 Series 1.2 V 1.5 A Positive Adjustable Voltage Regulator - D2PAK













