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SPX1117M33.3[共16页].pdf

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文档介绍:® SPX1117

800mA Low Dropout Voltage Regulator

FEATURES APPLICATIONS
■ Guaranteed 0.8A Output Current ■ Desktop PC's Servers
■ Guaranteed 1A Peak Current ■ SCSI-II Active Terminator
■ Three Terminal Adjustable or Fixed ■ Portable/ Palm Top / Notebook
1.5V, 1.8V, 2.5V, 2.85V, 3.0V, Computers
3.3V and 5V ■ Cordless Phones

Low Quiescent Current ■ Battery Chargers

Low Dropout Voltage of 1.1V at 0.8A ■ Disk Drives

0.1% Line and 0.2% Load Regulation ■ Portable Consumer Equipment

Stable with 2.2uF Ceramic Capacitor ■ Portable Instrumentation

Overcurrent and Thermal Protection ■ SMPS Post-Regulator
■ Available Packages: SOT-223,TO-252,
Now Available in Lead Free Packaging
TO-220, and TO-263

DESCRIPTION
The SPX1117 is a low power positive-voltage regulator designed to satisfy moderate power
requirements with a cost effective, small footprint solution. This device is an excellent choice for
use in battery-powered applications and portable computers. The SPX1117 features very low
quiescent current and a low dropout voltage of 1.1V at a full load. As output current decreases,
quiescent current flows into the load, increasing efficiency. SPX1117 is available in adjustable
or fixed 1.5V, 1.8V, 2.5V,2.5V, 2.85V, 3.0V, 3.3V and 5V output voltages.
The SPX1117 is offered in several 3-pin surface mount packages: SOT-223, TO-252, TO-220
and TO-263. An output capacitor of 10µF provides unconditional stability while a smaller 2.2µF
capacitor is sufficient for most applications.

FUNCTIONAL DIAGRAM

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SPX1117M33.3[共16页].pdf

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