The L7981 from STMicroelectronics is a positive adjustable buck switching regulator Integrated Circuit with a 0.6 V adjustable output, 1 output at 3 A, in an 8-VFDFN (VFQFPN) package with exposed pad.
The L7981A from STMicroelectronics is an adjustable positive buck switching regulator Integrated Circuit with 1 output at 0.6 V and 3 A, in an 8-SOIC (0.154", 3.90 mm width) exposed pad package.
The L7981ATR from STMicroelectronics is a positive adjustable buck switching regulator Integrated Circuit with 1 output at 0.6 V and 3 A, in an 8-SOIC (0.154", 3.90 mm width) package with exposed pad.
The L7981TR from STMicroelectronics is an adjustable buck switching regulator Integrated Circuit with a positive adjustable 0.6 V output, 1 output rated at 3 A, in an 8-VFDFN package with exposed pad.