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SPX3819_07 PDF预览

SPX3819_07

更新时间: 2024-11-29 04:03:07
品牌 Logo 应用领域
西伯斯 - SIPEX 稳压器
页数 文件大小 规格书
13页 372K
描述
500mA, Low-Noise LDO Voltage Regulator

SPX3819_07 数据手册

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SPX3819  
500mA, Low-Noise LDO Voltage Regulator  
FEATURES  
ADJ/BYP  
GND  
EN  
NC  
1
2
8
7
6
Low Noise: 40µV Possible  
High Accuracy: 1%  
SPX3819  
8 Pin DFN  
V
3
4
NC  
IN  
Reverse Battery Protection  
Low Dropout: 340mV at Full Load  
Low Quiescent Current: 90µA  
Zero Off-Mode Current  
5
NC  
V
OUT  
Fixed Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V,  
APPLICATIONS  
3.1V, 3.3V, 5.0V. Adj. Output also available.  
Battery Powered Systems  
Cordless Phones  
Available in RoHS Compliant, Lead Free  
Packages: 5 Pin SOT-23, 8 Pin Narrow  
SOIC and 8 pin 2X3 DFN  
Radio Control Systems  
Portable/Palm Top/Notebook Computers  
Portable Consumer Equipment  
Portable Instrumentation  
Bar Code Scanners  
SMPS Post Regulators  
DESCRIPTION  
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.  
TYPICAL APPLICATION CIRCUIT  
VIN  
1
VOUT  
5
+
2
SPX3819  
GND  
EN  
+
3
4
BYP  
(Opt.)  
ENABLE may be tied directly to V  
IN  
TOP View  
Jun 5-07 Rev E  
SPX3819 500mA, Low Noise LDO Voltage Regulator  
© 2007 Sipex Corporation  
1

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