型号: AMS1117-3.3
厂商: Advanced Monolithic Systems Advanced Monolithic Systems
描述: 1A low dropout voltage regulator
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Advanced  
Monolithic  
Systems  
AMS1117  
1A LOW DROPOUT VOLTAGE REGULATOR  
RoHS compliant  
FEATURES  
APPLICATIONS  
Three Terminal Adjustable or Fixed Voltages*  
1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V  
Output Current of 1A  
High Efficiency Linear Regulators  
Post Regulators for Switching Supplies  
5V to 3.3V Linear Regulator  
Battery Chargers  
Operates Down to 1V Dropout  
Line Regulation: 0.2% Max.  
Load Regulation: 0.4% Max.  
SOT-223, TO-252 and SO-8 package available  
Active SCSI Terminators  
Power Management for Notebook  
Battery Powered Instrumentation  
GENERAL DESCRIPTION  
The AMS1117 series of adjustable and fixed voltage regulators are designed to provide 1A output current and to operate  
down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output  
current, decreasing at lower load currents.  
On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress under overload  
conditions on both the regulator and power source circuitry.  
The AMS1117 devices are pin compatible with other three-terminal SCSI regulators and are offered in the low profile surface  
mount SOT-223 package, in the 8L SOIC package and in the TO-252 (DPAK) plastic package.  
ORDERING INFORMATION:  
PACKAGE TYPE  
SOT-223  
OPERATING JUNCTION  
TEMPERATURE RANGE  
TO-252  
8L SOIC  
AMS1117CD  
AMS1117  
AMS1117CS  
-40 to 125° C  
-40 to 125° C  
-40 to 125° C  
-40 to 125° C  
-40 to 125° C  
-40 to 125° C  
-40 to 125° C  
AMS1117CD-1.5 AMS1117-1.5  
AMS1117CD-1.8 AMS1117-1.8  
AMS1117CD-2.5 AMS1117-2.5  
AMS1117CD-2.85 AMS1117-2.85  
AMS1117CD-3.3 AMS1117-3.3  
AMS1117CD-5.0 AMS1117-5.0  
AMS1117CS-1.5  
AMS1117CS-1.8  
AMS1117CS-2.5  
AMS1117CS-2.85  
AMS1117CS-3.3  
AMS1117CS-5.0  
8L SOIC Top View  
1
2
3
4
8
7
6
5
GND/ADJ  
VOUT  
N/C  
VOUT  
VOUT  
VOUT  
N/C  
*For additional available fixed voltages contact factory.  
VIN  
PIN CONNECTIONS  
SOT-223 Top View  
TO-252 FRONT VIEW  
3 PIN FIXED/ADJUSTABLE  
VERSION  
3
2
1
TAB IS  
OUTPUT  
1- Ground/Adjust  
2- VOUT  
1
2
3
3- VIN  
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723