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REG1117/REG1117A Datasheet

  • REG1117/REG1117A

  • REG1117. REG1117A - 800mA and 1A Low Dropout Positive Regula...

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廬
REG
111
7
REG1117
REG1117A
For most current data sheet and other product
information, visit www.burr-brown.com
800mA and 1A Low Dropout Positive Regulator
1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
FEATURES
q
FIXED AND ADJUSTABLE VERSIONS
q
2.85V MODEL FOR SCSI-2 ACTIVE
TERMINATION
q
OUTPUT CURRENT:
REG1117: 800mA max
REG1117A: 1A max
q
OUTPUT TOLERANCE:
鹵
1% max
q
DROPOUT VOLTAGE:
REG1117: 1.2V max at I
O
= 800mA
REG1117A: 1.3V max at I
O
= 1A
q
INTERNAL CURRENT LIMIT
q
THERMAL OVERLOAD PROTECTION
q
SOT-223 AND DDPAK SURFACE
MOUNT PACKAGES
DESCRIPTION
The REG1117 is a family of easy-to-use three-termi-
nal voltage regulators. The family includes a variety of
fixed- and adjustable-voltage versions, two currents
(800mA and 1A) and two package types (SOT-223
and DDPAK). See the chart below for available op-
tions.
Output voltage of the adjustable versions is set with
two external resistors. The REG1117鈥檚 low dropout
voltage allows its use with as little as 1V input-output
voltage differential.
Laser trimming assures excellent output voltage accu-
racy without adjustment. An NPN output stage allows
output stage drive to contribute to the load current for
maximum efficiency.
APPLICATIONS
q
q
q
q
q
SCSI-2 ACTIVE TERMINATION
HAND-HELD DATA COLLECTION DEVICES
HIGH EFFICIENCY LINEAR REGULATORS
BATTERY POWERED INSTRUMENTATION
BATTERY MANAGEMENT CIRCUITS FOR
NOTEBOOK AND PALMTOP PCs
q
CORE VOLTAGE SUPPLY:
FPGA, PLD, DSP, CPU
VOLTAGE
1.8V
2.5V
2.85V
3.3V
5V
Adj.
800mA
SOT-223
DDPAK
SOT-223
1A
DDPAK
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111
Twx: 910-952-1111 鈥?Internet: http://www.burr-brown.com/ 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
廬
漏
1992 Burr-Brown Corporation
1
PDS-1162H
Printed in U.S.A. December, 1999
REG1117

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