The MC34268 is a medium current, low dropout positive voltage regulator specifically designed for use in SCSI−2 active termination circuits. This device offers the circuit designer an economical solution for precision voltage regulation, while keeping power losses to a minimum. The regulator consists of a 1.0 V dropout composite PNP/NPN pass transistor, current limiting, and thermal limiting. These devices are packaged in the SOIC−8 and DPAK−3 and SOT−223 surface mount power packages.
Applications include active SCSI−2 terminators and post regulation of switching power supplies.
   
Features
• 2.85 V Output Voltage for SCSI−2 Active Termination
• 1.0 V Dropout
• Output Current in Excess of 800 mA
• Thermal Protection
• Short Circuit Protection
• Output Trimmed to 1.4% Tolerance
• No Minimum Load Required
• Space Saving DPAK−3, SOT−223 and SOIC−8 Surface Mount
    Power Packages
• Pb−Free Packages are Available