The TPS72748YFFR from Texas Instruments is a positive fixed linear voltage regulator Integrated Circuit with 1 output at 250 mA and 4.8 V, in a 4-DSBGA package.
The TPS72748YFFT from Texas Instruments is a linear voltage regulator Integrated Circuit with a fixed positive 4.8 V output rated 250 mA, in a 4-DSBGA package.
The TPS72748DSER from Texas Instruments is a linear voltage regulator Integrated Circuit with a fixed 4.8 V positive output, 1 output rated 250 mA, in a 6-WSON (1.5x1.5) package.