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SPX3819 Fiches technique(PDF) 1 Page - Sipex Corporation

No de pièce SPX3819
Description  500mA, Low-Noise LDO Voltage Regulator
Download  13 Pages
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Fabricant  SIPEX [Sipex Corporation]
Site Internet  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SPX3819 Fiches technique(HTML) 1 Page - Sipex Corporation

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1
Jun 5-07 Rev E
SPX3819 500mA, Low Noise LDO Voltage Regulator
© 2007 Sipex Corporation
DESCRIPTION
FEATURES
■ Low Noise: 40µV Possible
■ High Accuracy: 1%
■ Reverse Battery Protection
■ Low Dropout: 340mV at Full Load
■ Low Quiescent Current: 90µA
■ Zero Off-Mode Current
■ Fixed Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V,
3.1V, 3.3V, 5.0V. Adj. Output also available.
■ Available in RoHS Compliant, Lead Free
Packages: 5 Pin SOT-23, 8 Pin Narrow
SOIC and 8 pin 2X3 DFN
The SPX3819 is a positive voltage regulator with a low dropout voltage and low noise output. In
addition, this device offers a very low ground current of 800µA at 100mA output. The SPX3819 has
an initial tolerance of less than 1% max and a logic compatible ON/OFF switched input. When
disabled, power consumption drops to nearly zero. Other key features include reverse battery
protection, current limit, and thermal shutdown. The SPX3819 includes a reference bypass pin for
optimal low noise output performance. With its very low output temperature coefficient, this device
also makes a superior low power voltage reference.
The SPX3819 is an excellent choice for use in battery-powered applications such as cordless
telephones, radio control systems, and portable computers. It is available in several fixed voltages
-- 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 5.0V -- or with an adjustable output. This device is offered
in 8 pin NSOIC, 8 pin DFN and 5-pin SOT-23 packages.
APPLICATIONS
■ Battery Powered Systems
■ Cordless Phones
■ Radio Control Systems
■ Portable/Palm Top/Notebook Computers
TYPICAL APPLICATION CIRCUIT
+
+
GND
EN
BYP
(Opt.)
ENABLE may be tied directly to V
IN
SPX3819
1
2
3
4
5
V
IN
V
OUT
TOP View
■ Portable Consumer Equipment
■ Portable Instrumentation
■ Bar Code Scanners
■ SMPS Post Regulators
SPX3819
8 Pin DFN
EN
NC
NC
NC
VIN
ADJ/BYP
VOUT
GND
5
6
7
8
1
2
3
4
500mA, Low-Noise LDO Voltage Regulator
SPX3819


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