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AS2954BS-5.0 PDF预览

AS2954BS-5.0

更新时间: 2024-02-05 02:47:21
品牌 Logo 应用领域
西伯斯 - SIPEX 光电二极管
页数 文件大小 规格书
6页 182K
描述
Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.6V Dropout, PDSO8, PLASTIC, SOIC-8

AS2954BS-5.0 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:PLASTIC, SOIC-8Reach Compliance Code:unknown
风险等级:5.75最大回动电压 1:0.6 V
JESD-30 代码:R-PDSO-G8长度:4.9 mm
湿度敏感等级:1功能数量:1
端子数量:8工作温度TJ-Max:125 °C
工作温度TJ-Min:-40 °C最大输出电流 1:0.25 A
最大输出电压 1:29 V最小输出电压 1:1.24 V
标称输出电压 1:5 V封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):225
认证状态:Not Qualified调节器类型:FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:1.75 mm表面贴装:YES
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

AS2954BS-5.0 数据手册

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AS2954  
250 mA Low Drop Out Voltage Regulator  
FEATURES  
APPLICATIONS  
Output Accuracy 5V, 3.3V,@ 250mA 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  
Improved Replacement With Hight IOUT For LP2954 Sockets  
Voltage Reference  
Avionics  
AS2954 Version Over LP2954  
Error Flag Warns Of Output Dropout  
Logic-Controlled Electronic Shutdown  
Output Programmable From 1.24V to 29V  
Input Can Withstand -20V Reverse Battery & +60 Positive Transient  
PRODUCT DESCRIPTION  
The AS2954 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 AS2954 features very low quiescent current (75µA Typ.) and  
very low dropout voltage. This includes a tight initial tolerance of 0.5% max and 1% max., and very low output temperature  
coefficient, making the AS2954 useful as a low-power voltage reference. The key AS2954 features include protection against reversed  
battery, fold-back current limiting, and automotive load dump protection (60V positive transient).  
The error flag output feature is used as power-on reset for warning of a low output voltage, due to falling voltage input of batteries.  
Another feature is the logic compatible shutdown input which enables the regulator to be switched on and off. The AS2954 is offered  
in a 3-pin TO-92and TO-263 package compatible with other 5 volt regulators, in 8-Pin plastic, SO-8, (same pin out as AS2951), TO-  
220 and TO-263.  
The regulator output voltage (of the 8-pin) may be pin-strapped for a 5Vand 3.3V or programmed from 1.24V to 29V with an external  
pair of resistors. Look for AS2951 for 150mA and LP2951 for 100mA applications.  
PIN CONNECTIONS  
TO-263-3 Package  
AS2954  
TO-263-5 Package  
AS2954  
8-Pin Surface Mount (S)  
TO-220-3 Package  
AS2954  
TO-220-5 Packa
SOT-223 Package  
INPUT  
OUTPUT  
1
2
3
4
8
7
6
5
SENSE  
FEEDBACK  
5V, 3.3V TAP  
ERROR  
AS2954  
AS2954  
SHUTDOWN  
GND  
AS2954  
1
2
3
1
2
3
1
2
3
4
5
1)  
INPUT  
1)  
INPUT  
2) OUTPUT  
OUTPUT  
GND  
2)  
3)  
4)  
5)  
3)  
4)  
5)  
GND  
SHUTDOWN  
ERROR  
GND  
V
V
Top View  
TO-92 (N)  
IN  
OUT  
SHUTDOWN  
ERROR  
Front View  
V
VIN  
VOUT  
ADJ  
1
VIN  
2
3
V
1
2
3 4  
5
2
1
3
Top View  
Top View  
GND  
OUT  
Front View  
Front View  
OUTPUT  
INPUT  
GND  
Bottom View  
Rev.9/29/00  

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