Advanced
Monolithic
Systems
AMS1117
800mA LOW DROPOUT VOLTAGE REGULATOR
FEATURES
APPLICATIONS
· Three Terminal Adjustable or Fixed Voltages*
1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V
· Output Current of 800mA
· 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.
· Active SCSI Terminators
· Load Regulation: 0.4% Max.
· SOT-223 and TO-252 package available
· 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
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
TO-252 SOT-223
OPERATING JUNCTION
TEMPERATURE RANGE
AMS1117CD
AMS1117
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
AMS1117CD-1.5
AMS1117CD-1.8
AMS1117CD-2.5
AMS1117CD-2.85
AMS1117CD-3.3
AMS1117CD-5.0
AMS1117-1.5
AMS1117-1.8
AMS1117-2.5
AMS1117-2.85
AMS1117-3.3
AMS1117-5.0
SOT-223 Top View
*For additional available fixed voltages contact factory.
1
2
3
PIN CONNECTIONS
TO-252 FRONT VIEW
3
FIXED VERSION
ADJUSTABLE VERSION
TAB IS
OUTPUT
1- Ground
2- VOUT
3- VIN
2
1
1- Adjust
2- VOUT
3- VIN
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140