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AS1117M1 PDF预览

AS1117M1

更新时间： 2024-09-30 22:05:51
品牌 Logo 应用领域
阿尔法 - ALPHA 稳压器
页数 文件大小 规格书
11页 79K
描述
800mA Low Dropout Regulator SCSI-II Active Terminator

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AS1117M1 数据手册

 浏览型号AS1117M1的Datasheet PDF文件第2页浏览型号AS1117M1的Datasheet PDF文件第3页浏览型号AS1117M1的Datasheet PDF文件第4页浏览型号AS1117M1的Datasheet PDF文件第5页浏览型号AS1117M1的Datasheet PDF文件第6页浏览型号AS1117M1的Datasheet PDF文件第7页 
ALPHA  
SEMICONDUCTOR  
Excellence in Analog Power Products  
a
AS1117  
800mA Low Dropout Regulator  
SCSI-II Active Terminator  
FEATURES  
APPLICATIONS  
· Guaranteed 800mA Output  
· SCSI-II Active Terminator  
· Portable/ Palm Top / Notebook Computers  
· Battery Chargers  
· Three Terminal Adjustable Or Fixed 1.5V, 2.5V, 2.85V, 3V, 3.3V & 5V  
· Very Low Quiescent Current  
· Low Dropout Voltage Of 1.2 Volts At Full Load  
· Extremely Tight Load And Line Regulation  
· Very Low Temperature Coefficient  
· Fixed 2.85V Device For SCSI-II Active Terminator  
· Logic-Controlled Electronic Shutdown  
· Disk Drives  
· Portable Consumer Equipment  
· Portable Instrumentation  
· SMPS Post-Regulator  
· Internal Overcurrent Limiting & Thermal Overload Protection  
· Surface Mount Package SOT-223, TO-252, TO-220, SOT-89, TO-263, & SO-8  
PRODUCT DESCRIPTION  
The ALPHA Semiconductor AS1117 is a low power positive-voltage regulator designed to meet 800mA output current and comply  
with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in battery-powered  
applications, as active terminators for the SCSI bus, and portable computers. The AS1117 features very low quiescent current and  
very low dropout voltage of 1.2V at a full load and lower as output current decreases. AS1117 is available as an adjustable or fixed  
2.85V, 3V, 3.3V, and 5V output voltages.  
The AS1117 is offered in a 3-pin surface mount package SOT-223, TO-252, TO-220, SOT-89 & TO-263. The output capacitor of  
10mF or larger is needed for output stability of AS1117 as required by most of the other regulator circuits. Use of ALPHA  
Semiconductor’s design, processing and testing techniques make our AS1117 superior over similar products.  
ORDERING INFORMATION  
TO-220  
3-PIN  
AS1117U  
AS1117U-X  
TO-263  
3-PIN  
AS1117T  
AS1117T-X  
SOT-223  
3-PIN  
AS1117M3  
AS1117M3-X  
PLASTIC  
SOIC 8 PIN  
AS1117S  
SOT-89  
3-PIN  
AS1117M1  
AS1117M1-X  
TO-252  
DPAK  
AS1117R  
AS1117R-X  
Oper. Temp.  
Range  
-40°C to +85°C  
-40°C to +85°C  
AS1117S-X  
X= Output Voltage (X = 1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 5.0, or Blank for Adjustable)  
PIN CONNECTIONS  
8-Pin Surface Mount (S)  
TO-220-3 (U)  
TO-263-3 (T)  
SOT-89 (M1)  
SOT-223 (M3)  
TO-252 (R)  
1
2
8
7
GND  
N/C  
V
V
V
V
IN  
ALPHA  
AS1117  
2
ALPHA  
AS1117  
2
ALPHA  
AS1117  
ALPHA  
AS1117  
2
IN  
ALPHA  
AS1117  
1
ALPHA  
AS1117  
3
1
3
1
3
2
3
3
4
6
5
1
OUT  
IN  
1
2
3
ADJ/GND  
V
V
OUT  
ADJ/GND  
V
V
V
IN  
N/C  
OUT  
IN  
OUT  
ADJ/GND  
V
V
OUT  
IN  
Top View  
Top View  
Top View  
ADJ/GND  
V
V
OUT  
IN  
Front View  
Top View  
ADJ/GND  
V
V
IN  
OUT  
Front View  
Alpha Semiconductor Inc. 1031 Serpentine Lane. Pleasanton, CA 94568 Tel: (925) 417-1391 Fax: (925) 417-1390  
Rev. 9/14/99  
1234567...11

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