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SPX2957U3

更新时间： 2024-11-27 22:17:39
品牌 Logo 应用领域
西伯斯 - SIPEX 线性稳压器IC调节器电源电路输出元件局域网
页数 文件大小 规格书
9页 187K
描述
350mA Low Drop Out Voltage Regulator with Shutdown

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中文翻译

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SPX2957U3 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：TO-220, 3 PINReach Compliance Code：unknown
风险等级：5.92最大回动电压 1：0.6 V
JESD-30 代码：R-PSFM-T3湿度敏感等级：1
功能数量：1端子数量：3
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：0.35 A最大输出电压 1：30 V
最小输出电压 1：1.24 V封装主体材料：PLASTIC/EPOXY
封装代码：TO-220封装形状：RECTANGULAR
封装形式：FLANGE MOUNT峰值回流温度（摄氏度）：225
认证状态：Not Qualified调节器类型：ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
表面贴装：NO端子形式：THROUGH-HOLE
端子位置：SINGLE处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

SPX2957U3 数据手册

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SPX2955/56/57  
350mA Low Drop Out Voltage Regulator  
with Shutdown  
(PRELIMINARY INFORMATION)  
FEATURES  
APPLICATIONS  
• Output Accuracy 5V, 3.3V@ 350mA Output  
• Very Low Quiescent Current  
• Battery Powered Systems  
• Cordless Telephones  
• Low Dropout Voltage  
• Radio Control Systems  
• Portable/Palm Top/Notebook Computers  
• Portable Consumer Equipment  
• Portable Instrumentation  
• Automotive Electronics  
• SMPS Post-Regulator  
• Extremely Tight Load And Line Regulation  
• Very Low Temperature Coefficient  
• Current & Thermal Limiting  
• Error Flag Warns Of Output Dropout  
• Logic-Controlled Electronic Shutdown  
• Output Programmable From 1.24V to 29V  
• Voltage Reference  
PRODUCT DESCRIPTION  
The SPX2955/56/57 is a low power voltage regulator. This device is an excellent choice for use in battery-powered applications such  
as cordless telephones, radio control systems, and portable computers. The SPX2955/56/57 features very low quiescent current  
(100µA Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and 2% max., and very low output  
temperature coefficient, making the SPX2955/56/57 useful as a low-power voltage reference.  
The error flag output feature is used as power-on reset for warning of a low output voltage, due to a falling voltage input of batteries.  
Another feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. The SPX2955/56/57 is  
offered in 3-pin and 5-pin TO-220 package compatible with other 5 volt and adjustable regulators, in 8-Pin Plastic Dip SO-8 (same pin  
out as SPX2951) and surface mount TO-263 packages.  
The regulator output voltage (of the 8-pin package and 5-pin TO-220 & TO-263) may be pin-strapped for a 5V and 3.3V or  
programmed from 1.24V to 29V with an external pair of resistors. Look for SPX2951 for 150mA and SPX2954 for 250mA  
applications.  
PIN CONNECTIONS  
TO-220-3 Package  
TO-263-5 Package  
SPX2956/57  
TO-220-5 Package  
8-Pin Surface Mount  
3
2
1
VOUT  
GND  
VIN  
1
2
8
7
OUTPUT  
SENSE  
INPUT  
FEEDBACK  
SPX2955  
Five Lead Package Pin Functions:  
SPX2956/57  
3
4
SHUTDOWN  
6
5
Front View  
5V/ 3.3V TAP  
ERROR  
SPX2956  
SPX2957  
ADJUST  
SHUTDOWN  
GND  
GROUND  
ERROR  
INPUT  
GND  
1)  
2)  
3)  
4)  
5)  
TO-263-3 Package  
Top View  
3
2
1
VOUT  
OUTPUT  
INPUT  
1
2 3 4  
5
SPX2955  
GND  
V IN  
SHUTDOWN OUTPUT  
1 2 3 4 5  
Top View  
Top View  
Front View  
Rev. 11/21/00  
1234567...9

中文翻译

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