SPX3819M5-L-1-5 Datasheet, PDF (1/12 Pages) Exar Corporation – GENERAL DESCRIPTION

SPX3 8 1 9
500m A Low -Noise LDO Volt age Regulat or
August 2012
Rev. 2.0.0
GENERAL DESCRIPTION
APPLICATIONS
The SPX3819 is a positive voltage regulator
x Portable Consumer Equipment
with a low dropout voltage and low noise
output. In addition, this device offers a very
xPortable Instr umentation
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The SPX3819 has an initial tolerance of less
than 1% max an d a logic compatible ON/OFF
x SMPS Post Regulators
switched input. When
disabled, power
consumption drops to nearly zero. Other key
FEATURES
features include reverse battery
protection,
current limit, and thermal shutdown. The
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SPX3819 includes a reference bypass pin for
x High Accuracy: 1%
optimal low noise output performance. With its
very low output temperature coefficient, this
x Reverse Battery Protection
device also makes a superior low power
x Low Dropout: 340mV at Full Load
voltage reference.
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The SPX3819 is an excellent choice for use in
battery - powered applications such as cordless
xZero Off - Mode Current
telephones, radio control syst ems, and
x Fixed & Adjustable Output Voltages:
portable computers. It is available in several
fixed output voltage options or with an
adjustable output voltage .
 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V
Fixed Output Voltages
& 5.0V
•1.23 5V Adjustable Output Voltages
This device is offered in 8 pin NSOIC, 8 pin
DFN and 5 - pin SOT - 23 packages.
x Available in RoHS Compliant, Lead Free
Packages:
5- pin SOT - 23, 8 - pin SOIC and 8 - pin DFN
TYPICAL APPLICATION DIAGRAM
Fig. 1: SPX3819 Application Circuit
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] - 70 00 ±Fax. [phone] - 70 01