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REG1118-2.85 Datasheet

  • REG1118-2.85

  • 800mA Low Dropout Positive Regulator with Current Source and...

  • 5頁

  • BB

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廬
REG
1118
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
I
O
= 800mA
q
INTERNAL CURRENT LIMIT
q
THERMAL OVERLOAD PROTECTION
q
SOT-223 SURFACE MOUNT PACKAGE
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.
APPLICATIONS
q
SCSI-2 AND SCSI-3 DEVICES
q
FAST-20 SCSI
q
ACTIVE NEGATION SCSI TERMINATORS
q
SUPPLY SPLITTER GROUND GENERATION
110鈩?/div>
Signal Line 1
110鈩?/div>
Signal Line 2
TERMPWR
REG1118
V
IN
10碌F
GND
V
OUT
4.7碌F
110鈩?/div>
Signal Line 3
Up To
27 Lines
110鈩?/div>
Signal Line N
User Supplied
Resistor Network
REG1118-2.85 Used to Make Active Negation SCSI Terminator
InternationalAirportIndustrialPark 鈥?MailingAddress:POBox11400,Tucson,AZ85734 鈥?StreetAddress:6730S.TucsonBlvd.,Tucson,AZ 85706 鈥?Tel:(520)746-1111 鈥?Twx:910-952-1111
Internet:http://www.burr-brown.com/ 鈥?FAXLine:(800)548-6133(US/CanadaOnly) 鈥?Cable:BBRCORP 鈥?Telex:066-6491 鈥?FAX:(520)889-1510 鈥?ImmediateProductInfo:(800)548-6132
漏
1996 Burr-Brown Corporation
PDS-1352B
Printed in U.S.A. January, 1997

REG1118-2.85 產(chǎn)品屬性

  • 80

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 線性

  • -

  • 正，固定式

  • 2.85V

  • 4.75 V ~ 6 V

  • 1.1V @ 800mA

  • 1

  • 800mA（最小值）

  • 0°C ~ 70°C

  • 表面貼裝

  • TO-261-4，TO-261AA

  • SOT-223-4

  • 管件

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