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SPX2954CU-5.0 PDF预览

SPX2954CU-5.0

更新时间: 2024-11-28 14:44:55
品牌 Logo 应用领域
西伯斯 - SIPEX 局域网输出元件调节器
页数 文件大小 规格书
2页 26K
描述
Fixed Positive LDO Regulator, 5V, PSFM3, TO-220, 3 PIN

SPX2954CU-5.0 数据手册

 浏览型号SPX2954CU-5.0的Datasheet PDF文件第2页 
®
SPX2954  
250mA Low Dropout Voltage Regulators  
features  
description  
The SPX2954 is a low power voltage regulator. This device is an  
excellent choice for use in battery-powered applications such as cord-  
less telephones, radio control systems, and portable computers. The  
SPX2954 has a low quiescent current and low dropout voltage (typ.  
375 mV at 250mA). This includes a tight initial tolerance of 0.5%  
(typ.), extremely good load and line regulation (0.05% typ.), and very  
low output temperature coefficient, making it useful as a low-power  
voltage reference.  
Guaranteed 250mA Output  
Current  
5.0V and 3.3V Versions at  
250mA Output  
Very Low Quiescent Current  
Low Dropout Voltage: 375mV  
at 250mA  
Extremely Tight Load and Line  
The error flag output feature is used as a power-on reset for warning  
of a low output voltage, due to a falling input voltage. The logic-com-  
patible shutdown feature enables the regulator to be switched ON and  
OFF. The SPX2954 is offered in a variety of industry standard pack-  
ages and is compatible with other 3.3V AND 5.0V regulators.  
Regulation  
0.5% and 1% Accuracy  
P
Very Low Temperature  
Coefficient  
Current and Thermal Limiting  
Error Flag and Enable  
typical application circuits  
Adjustable Regulator  
Reverse Battery and  
Overvoltage Transient  
Protection  
+VIN  
100K  
8
+VIN  
TO-92, 8L SOIC Package  
______  
ERROR  
ERROR  
5
1.2 to 30V  
1
OUTPUT  
VOUT  
Options  
SPX2954  
Direct Replacement For  
+
3
R1  
LP2954  
SHUTDOWN  
INPUT  
3.3uF  
SD  
.01uF  
FB  
GND  
7
4
1.23V  
VREF  
applications  
R2  
Battery Powered Systems  
Cordless Telephones  
Radio Control Systems  
Latch Off when Error flag Occurs  
+V IN  
Portable/Palm Top/Notebook  
470k  
8
..  
Computers  
+V IN  
______  
5
VOUT  
ERROR  
1
Portable Consumer Equipment  
Portable Instrumentation  
Avionics  
470kΩ  
VOUT  
..  
SPX2954  
+
3
R1  
1uF  
SD  
FB  
7
GND  
4
RESET  
SMPS Post-Regulator  
Voltage Reference  
R2  
Automotive Electronics  
2002 Short Form Catalog  
P-159  
© Copyright 2001 Sipex Corporation  

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