The TPS71533DCKR from Texas Instruments is a fixed positive linear voltage regulator Integrated Circuit with 1 output rated at 3.3 V and 50 mA, in an SC-70-5 package.
The TPS71533DCKRM3 from Texas Instruments is a linear voltage regulator Integrated Circuit with a positive fixed 3.3 V output, 1 output at 50 mA, in an SC-70-5 package.