FS1084 datasheet(3/9 Pages) FORTUNE

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FS1084

Rev. 1.0

3/9

General Description

The FS1084 is a series of low dropout three-terminal

regulators with a dropout of 1.5V at 1Aoutput

current.

The FS1084 series provides current limiting and

thermal shutdown. Its circuit includes a trimmed

band gap 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 FS1084 has an adjustable version that can

provide the output voltage from 1.25V to 12V with

only two external resistors.

The FS1084 series is available in the industry

standard TO263-3L power package.

Features



Input voltage up to 18V.



1.5V maximum dropout at full load current



Fast transient response.



Output current limiting



Built-in thermal shutdown



Good noise rejection



3-Terminal Adjustable or Fixed 1.8V, 3.3V



TO263-3L: ”Green”Molding Compound(no Br, Sb)



Lead Free Finish/RoHS compliant(Note 1)

Applications



Input voltage:4.4V to 1.8V



PC Motherboard



LCD Monitor



Graphic Card



DVD-video player



NIC/Switch



Telecom Equipment



ADSL Modem



Printer and other Peripheral Equipment

Ordering Information

Pin Configurations

TO263-3L

FS1084

XXXXXXXX

Part

No.

Pin 1

Pin 2

Pin 3

FS1084

-xxGK GND/ADJ

OUT

(TAP)

FS1084-xx x x

Package

Pin Out

K ： SOT-263-3L 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

18 : 1.8V

33 : 3.3V

: Adjustable Output

Note: The output voltages other

than the preset values are

available by order only.

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