FEATURES
SOURCES 800mA, SINKS 400mA
2.85V OUTPUT FOR SCSI ACTIVE
NEGATION TERMINATION
1.3V max DROPOUT VOLTAGE AT
IO = 800mA
INTERNAL CURRENT LIMIT
THERMAL OVERLOAD PROTECTION
SOT-223 SURFACE MOUNT PACKAGE

APPLICATIONS
SCSI-2 AND SCSI-3 DEVICES
FAST-20 SCSI
ACTIVE NEGATION SCSI TERMINATORS
SUPPLY SPLITTER GROUND GENERATION

DESCRIPTION
The REG1118-2.85 is a three-terminal voltage regulators
capable of sourcing up to 800mA and sinking up
to 400mA. The sinking capability is important in SCSI
applications where active negation line drivers are
used. The REG1118-2.85 is useful for making a
27-line Boulay terminator capable of interfacing with
active negation drivers required in FAST-20 SCSI
applications. The regulator has active current limits
for both sink and source currents as well as internal
thermal limiting.
Laser trimming assures excellent output voltage accuracy.
An NPN output stage allows output stage drive
current to contribute to the source load current for
maximum efficiency.
REG1118 is packaged in a SOT-223 surface-mount
package, suitable for reflow soldering techniques.