Advanced AMS1117
Monolithic 1A LOW DROPOUT VOLTAGE REGULATOR
Systems
RoHS compliant
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 Re
g
ulators for Switchin
g
Supplies
• Output Current of 1A • 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, TO-252 and SO-8 package available • 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 OPERATING JUNCTION
TO-252 SOT-223 8L SOIC
TEMPERATURE RANGE
AMS1117CD AMS1117 AMS1117CS
-40 to 125° C
AMS1117CD-1.5 AMS1117-1.5 AMS1117CS-1.5
-40 to 125° C
AMS1117CD-1.8 AMS1117-1.8 AMS1117CS-1.8
-40 to 125° C
AMS1117CD-2.5 AMS1117-2.5 AMS1117CS-2.5
-40 to 125° C
AMS1117CD-2.85 AMS1117-2.85 AMS1117CS-2.85
-40 to 125° C
AMS1117CD-3.3 AMS1117-3.3 AMS1117CS-3.3
-40 to 125° C
AMS1117CD-5.0 AMS1117-5.0 AMS1117CS-5.0
-40 to 125° C
8L SOIC Top View
1
2
8
4
3
7
5
6
V
OUT
N/C
V
OUT
GND/ADJ
V
OUT
V
OUT
N/C
V
IN
TAB IS
OUTPUT
TO-252 FRONT VIEW
1
2
3
*For additional available fixed voltages contact factory.
PIN CONNECTIONS
SOT-223 Top View
1
2
3
3 PIN FIXED/ADJUSTABLE
VERSION
1- Ground/Adjust
2- V
OUT
3- V
IN
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723
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