Advanced
Monolithic
Systems
FEATURES
•
Three Terminal Adjustable or Fixed Voltages*
1.5V, 2.5V, 2.85V, 3.3V, and 5.0V
•
Output Current of 1A
•
Operates Down to 1V Dropout
•
Line Regulation: 0.2% Max.
•
Load Regulation: 0.4% Max.
•
Available in TO-220, TO-263, TO-252 and SOT-223
packages
AMS2911
1A 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 AMS2911 series of adjustable and fixed voltage regulators are designed to provide 1A output current and to operate
The
down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.5V 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 AMS2911 devices are pin compatible with other three-terminal regulators and are offered in the 3 lead TO-220 package,
in the 3Lead TO-263 (Plastic DD), in the TO-252 (DPAK) and in the low profile surface mount SOT-223 package.
ORDERING INFORMATION:
PACKAGE TYPE
3 LEAD TO-220
3 LEAD TO-263
TO-252
AMS2911CT
AMS2911CM
AMS2911CD
AMS2911CT-1.5
AMS2911CM-1.5
AMS2911CD-1.5
AMS2911CT-2.5
AMS2911CM-2.5
AMS2911CD-2.5
AMS2911CT-2.85
AMS2911CM-2.85 AMS2911CD-2.85
AMS2911CT-3.3
AMS2911CM-3.3
AMS2911CD-3.3
AMS2911CT-5.0
AMS2911CM-5.0
AMS2911CD-5.0
*For additional available fixed voltages contact factory.
SOT-223
AMS2911
AMS2911-1.5
AMS2911-2.5
AMS2911-2.85
AMS2911-3.3
AMS2911-5.0
SOT-223 Top View
OPERATING JUNCTION
TEMPERATURE RANGE
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
TO-220 FRONT VIEW
PIN CONNECTIONS
FIXED VERSION
1- V
IN
2- Ground
3- V
OUT
ADJUSTABLE VERSION
1- V
IN
2- Adjust
3- V
OUT
1
2
3
3
2
1
TO-263 FRONT VIEW
TO-252 FRONT VIEW
3
3
2
1
2
1
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140