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REG1118-2.85

更新时间： 2024-11-19 22:34:15

品牌	Logo	应用领域
BB		调节器光电二极管输出元件
页数	文件大小	规格书
5页	105K
描述
800mA Low Dropout Positive Regulator with Current Source and Sink Capability

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数据手册

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REG1118-2.85 数据手册

REG1118

800mA Low Dropout Positive Regulator

with Current Source and Sink Capability

DESCRIPTION

FEATURES

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.

● SOURCES 800mA, SINKS 400mA

● 2.85V OUTPUT FOR SCSI ACTIVE

NEGATION TERMINATION

● 1.3V max DROPOUT VOLTAGE AT

I_O= 800mA

● INTERNAL CURRENT LIMIT

● THERMAL OVERLOAD PROTECTION

● SOT-223 SURFACE MOUNT PACKAGE

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.

APPLICATIONS

● SCSI-2 AND SCSI-3 DEVICES

● FAST-20 SCSI

REG1118 is packaged in a SOT-223 surface-mount

package, suitable for reflow soldering techniques.

● ACTIVE NEGATION SCSI TERMINATORS

● SUPPLY SPLITTER GROUND GENERATION

110Ω

Signal Line 1

110Ω

Signal Line 2

TERMPWR

110Ω

Up To

REG1118

Signal Line 3

Signal Line N

27 Lines

V_IN

V_OUT

GND

10µF

4.7µF

110Ω

User Supplied

Resistor Network

REG1118-2.85 Used to Make Active Negation SCSI Terminator

InternationalAirportIndustrialPark•MailingAddress:POBox11400,Tucson,AZ85734•StreetAddress:6730S.TucsonBlvd.,Tucson,AZ85706•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

PDS-1352B

Printed in U.S.A. January, 1997

12 3 4 5

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