FS1117 datasheet(3/9 Pages) FORTUNE

3 / 9 page

General Description

The FS1117 is a series of low-dropout three-terminal

regulators with a dropout of 1.4V at 1A output

current.

The FS1117 series provides current limiting and

thermal shutdown. Its circuit includes a trimmed

bandgap reference to assure output voltage

accuracy to be within ± 2% for 1.8V, 3.3V and

adjustable versions. Current limit is trimmed to

ensure specified output current and controlled

short-circuit current. On–chip thermal shutdown

provides protection against any combination of

overload and ambient temperature that would create

excessive junction temperature.

The FS1117 has an adjustable version that can

provide the output voltage from 1.25V to 12V with

only two external resistors.

The FS1117 series is available in the industry

standard SOT223 power package.

Features



1.4V maximum dropout at full load current



Fast transient response



Output current limiting



Built-in thermal shutdown



Good noise rejection



Low ESR Ceramic Capacitor(MlCC) Required gor

Stability

Applications



PC Motherboard



LCD Monitor



Graphic Card



DVD-video player



NIC/Switch



Telecom Equipment



ADSL Modem



Printer and other Peripheral Equipment

Ordering Information

Pin Configurations

SOT-223

FS1117

xxxxxxxx

Part

No.

Pin 1

Pin 2

Pin 3

FS1117

-xxGJ GND/ADJ

OUT

(TAP)

FS1117-xx x x

Package

Pin Out

J：SOT-223 1.GND 2.OUT 3.IN

Note : For the adjustable voltage types, the

GND pin is replaced with the ADJ pin

Package Type

G : G stands for Green-Package

Output Voltage

12 : 1.2V

18 : 1.8V

25 : 2.5V

33 : 3.3V

50 : 5.0V

: Adjustable Output

Note: The output voltages other than the

preset values are available by order

only.

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