Advanced
Monolithic
Systems
FEATURES
•
Three Terminal Adjustable or Fixed Voltages*
1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V
•
Output Current of 800mA
•
Operates Down to 1V Dropout
•
Line Regulation: 0.2% Max.
•
Load Regulation: 0.4% Max.
•
SOT-223 and TO-252 package available
AMS1117
800mA LOW DROPOUT VOLTAGE REGULATOR
APPLICATIONS
•
High Efficiency Linear Regulators
•
Post Regulators for Switching Supplies
•
5V to 3.3V Linear Regulator
•
Battery Chargers
•
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 800mA output current and to operate
The
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 and in the TO-252 (DPAK) plastic package.
ORDERING INFORMATION:
PACKAGE TYPE
OPERATING JUNCTION
TO-252
SOT-223
TEMPERATURE RANGE
AMS1117CD
AMS1117
0 to 125° C
AMS1117CD-1.5
AMS1117-1.5
0 to 125° C
AMS1117CD-1.8
AMS1117-1.8
0 to 125° C
AMS1117CD-2.5
AMS1117-2.5
0 to 125° C
AMS1117CD-2.85
AMS1117-2.85
0 to 125° C
AMS1117CD-3.3
AMS1117-3.3
0 to 125° C
AMS1117CD-5.0
AMS1117-5.0
0 to 125° C
*For additional available fixed voltages contact factory.
SOT-223 Top View
1
2
3
PIN CONNECTIONS
FIXED VERSION
1- Ground
2- V
OUT
3- V
IN
ADJUSTABLE VERSION
1- Adjust
2- V
OUT
3- V
IN
TAB IS
OUTPUT
TO-252 FRONT VIEW
3
2
1
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140