DS317 Datasheet, PDF (1/8 Pages) –

Advanced
Monolithic
Systems
AMS317
1A LOW DROPOUT VOLTAGE REGULATOR
RoHS compliant
FEATURES
• Three Terminal Adjustable or Fixed Voltages*
1.8V, 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.
•TO-220, TO-263, TO-252 and SOT-223 package available
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
TThhee _{AMS317 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 AMS317 devices are pin compatible with other three-terminal regulators and are offered in 3 lead TO-220 package, in the
2 & 3 Lead TO-263 (Plastic DD), in the TO-252 (D PAK) and in the low profile surface mount SOT-223 package.
ORDERING INFORMATION:
OUTPUT
PACKAGE TYPE
VOLTAGE 3 Lead TO-220 2 &3 Lead TO-263
TO-252
ADJUSTABLE AMS317ACT
AMS317ACM
AMS317CT
AMS317CM
FIXED*
AMS317ACT-X AMS317ACM-X
AMS317CT-X AMS317CM-X
X= 1.8V, 2.5V, 2.85V, 3.3V and 5.0V.
*For additional available fixed voltages contact factory.
AMS317ACD
AMS317CD
AMS317ACD-X
AMS317CD-X
SOT-223
AMS317A
AMS317
AMS317A-X
AMS317-X
PIN CONNECTIONS
SOT-223 Top View
FIXED VERSION
ADJUSTABLE VERSION
1- Ground
2- V_OUT
3- V_IN
1- Adjust
2- V_OUT
3- V_IN
1
2
3
TO-220 FRONT VIEW
3
TAB IS
OUTPUT
2
1
TO-252 FRONT VIEW
TAB IS
3
OUTPUT
2
1
OPERATING JUNCTION
TEMPERATURE RANGE
-40 to +125° C
-40 to +125° C
-40 to +125° C
-40 to +125° C
TO-263 FRONT VIEW
3
TAB IS
OUTPUT
2
1
2L TO-263 FRONT VIEW
3
TAB IS
OUTPUT
2
1
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone [phone] Fax [phone]