FT531 datasheet(1/23 Pages) ETC2

No. de pieza	FT531

Descripción Electrónicos	Ultra Low Noise, High PSRR, 250mA LDO

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Fabricante Electrónico	ETC2 [List of Unclassifed Manufacturers]

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Fremont Micro Devices

FT531xx

www.fremontmicro.com

Page 1 of 23

DS531-A8

Ultra Low Noise, High PSRR, 250mA LDO

FEATURES

DESCRIPTION

Ultra-Low Noise for RF Application

Ultra-Fast Response in Line/Load Transient

Quick Start-Up (Typically 100uS)

Low Quiescent Current: 36uA

Less

than

0.1uA

Standby

Current

When

Shutdown

Low Dropout Voltage: 120mV @ 100mA

Wide Operating Voltage Ranges : 2.5V to 6V

TTL-Logic-Controlled Shutdown Input

Low Temperature Coefficient

Current Limiting Protection

Only 1uF Output Capacitor Required

High Power Supply Rejection Ratio

ROHS Compliant and 100% Lead (Pb)-Free

Custom Voltage Available

Custom Options for CE Logic and Build-in

Pull-up/down Available

The FT531xx is designed for portable RF and

wireless applications with demanding performance

and space requirements. The FT531xx performance is

optimized for battery powered systems to deliver

ultra low noise and low quiescent current. Regulator

ground current increases only slightly in dropout,

further prolonging the battery life.

The FT531xx also works with low-ESR ceramic

capacitors, reducing the amount of board space

necessary

for

power

applications,

critical

in

hand-held wireless devices. The FT531xx consumes

less than 0.1uA in shutdown mode and has fast

turn-on time less than 100uS. The other features

include low dropout voltage, high output accuracy,

current limiting protection, and high ripple rejection

ratio. The FT531xx is available in the 5-lead of

SOT-23-5(L), SC-70 and the 3-lead of SOT-23-3(L),

SOT-89-3(L), SOT-23 packages.

APPLLICATIONS

CDMA/GSM Cellular Handsets

Battery-Powered Equipment

Laptop, Palmtops, Notebook Computers

Hand-Held Instruments

PCMCIA Cards

Portable Information Appliances

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FT531 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

FT531 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers

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