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.