REG
111
7
REG1117
REG1117A
SBVS001B 鈥?OCTOBER 2001
800mA and 1A Low Dropout Positive Regulator
1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
FEATURES
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FIXED AND ADJUSTABLE VERSIONS
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2.85V MODEL FOR SCSI-2 ACTIVE TERMINATION
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OUTPUT CURRENT:
REG1117: 800mA max
REG1117A: 1A max
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OUTPUT TOLERANCE:
鹵
1% max
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DROPOUT VOLTAGE:
REG1117: 1.2V max at I
O
= 800mA
REG1117A: 1.3V max at I
O
= 1A
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INTERNAL CURRENT LIMIT
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THERMAL OVERLOAD PROTECTION
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SOT-223 AND DDPAK SURFACE-MOUNT PACKAGES
DESCRIPTION
The REG1117 is a family of easy-to-use three-terminal
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 options.
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 accuracy
without adjustment. An NPN output stage allows output
stage drive to contribute to the load current for maximum
efficiency.
800mA
VOLTAGE
1.8V
2.5V
2.85V
3.3V
5V
Adj.
鉁?/div>
鉁?/div>
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鉁?/div>
鉁?/div>
鉁?/div>
鉁?/div>
鉁?/div>
SOT-223
DDPAK
SOT-223
鉁?/div>
鉁?/div>
1A
DDPAK
鉁?/div>
鉁?/div>
APPLICATIONS
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q
q
q
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SCSI-2 ACTIVE TERMINATION
HAND-HELD DATA COLLECTION DEVICES
HIGH EFFICIENCY LINEAR REGULATORS
BATTERY POWERED INSTRUMENTATION
BATTERY MANAGEMENT CIRCUITS FOR
NOTEBOOK AND PALMTOP PCs
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CORE VOLTAGE SUPPLY: FPGA, PLD, DSP, CPU
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 漏 1992, Burr-Brown Corporation
www.ti.com
REG1117A-25相關(guān)型號(hào)PDF文件下載
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