Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced AMS1117
Monolithic 800mA LOW DROPOUT VOLTAGE REGULATOR
Systems
FEATURES APPLICATIONS
• Three Terminal Adjustable or Fixed Voltages* • High Efficiency Linear Regulators
1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V • Post Regulators for Switching Supplies
• Output Current of 800mA • 5V to 3.3V Linear Regulator
• Operates Down to 1V Dropout • Battery Chargers
• Line Regulation: 0.2% Max. • Active SCSI Terminators
• Load Regulation: 0.4% Max. • Power Management for Notebook
• SOT-223 and TO-252 package available • Battery Powered Instrumentation
GENERAL DESCRIPTION
The 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 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.
PIN CONNECTIONS
FIXED VERSION ADJUSTABLE VERSION
1- Ground
2- V OUT
3- V IN
1 - Adjust
2- V OUT
3- V IN
SOT-223 Top View
1 2 3
TAB IS
OUTPUT
TO-252 FRONT VIEW
1
2
3