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BB11182 查看數據表(PDF) - Burr-Brown -> Texas Instruments

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BB11182 800mA Low Dropout Positive Regulator with Current Source and Sink Capability BURR-BROWN
Burr-Brown -> Texas Instruments BURR-BROWN
BB11182 Datasheet PDF : 5 Pages
1 2 3 4 5
®
REG1118
REG1118
800mA Low Dropout Positive Regulator
with Current Source and Sink Capability
FEATURES
q SOURCES 800mA, SINKS 400mA
q 2.85V OUTPUT FOR SCSI ACTIVE
NEGATION TERMINATION
q 1.3V max DROPOUT VOLTAGE AT
IO = 800mA
q INTERNAL CURRENT LIMIT
q THERMAL OVERLOAD PROTECTION
q SOT-223 SURFACE MOUNT PACKAGE
APPLICATIONS
q SCSI-2 AND SCSI-3 DEVICES
q FAST-20 SCSI
q ACTIVE NEGATION SCSI TERMINATORS
q SUPPLY SPLITTER GROUND GENERATION
DESCRIPTION
The REG1118-2.85 is a three-terminal voltage regula-
tors 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 accu-
racy. 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.
TERMPWR
10µF
REG1118
VIN
VOUT
GND
4.7µF
110
110
110
110
Signal Line 1
Signal Line 2
Signal Line 3
Signal Line N
User Supplied
Resistor Network
REG1118-2.85 Used to Make Active Negation SCSI Terminator
Up To
27 Lines
InternationalAirportIndustrialPark • MailingAddress:POBox11400,Tucson,AZ85734 • StreetAddress:6730S.TucsonBlvd.,Tucson,AZ 85706 • Tel:(520)746-1111 • Twx:910-952-1111
Internet:http://www.burr-brown.com/ • FAXLine:(800)548-6133(US/CanadaOnly) • Cable:BBRCORP • Telex:066-6491 • FAX:(520)889-1510 • ImmediateProductInfo:(800)548-6132
©1996 Burr-Brown Corporation
PDS-1352B
Printed in U.S.A. January, 1997
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