Harman Kardon HK 990/230 Service Manual page 23

Advanced
Monolithic
Systems
FEATURES
• • Three Terminal Adjustable or Fixed Voltages
1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V
• • Output Current of 3A
• • Operates Down to 1V Dropout
• • Load Regulation: 0.1%
• • Line Regulation: 0.015%
• • TO-220, TO-263 and TO-252 packages available
GENERAL DESCRIPTION
The AMS1085 series of adjustable and fixed voltage regulators are designed to provide 3A output current and to operate
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 AMS1085 devices are pin compatible with older three-terminal regulators and are offered in 3 lead TO-220 package, 3
and 2 lead TO-263 (Plastic DD) and TO-252 (D PAK) package.
ORDERING INFORMATION:
PACKAGE TYPE
3 LEAD TO-220 2&3 LEAD TO-263
AMS1085CT AMS1085CM
AMS1085CT-1.5 AMS1085CM-1.5
AMS1085CT-2.5 AMS1085CM-2.5
AMS1085CT-2.85 AMS1085CM-2.85
AMS1085CT-3.0 AMS1085CM-3.0
AMS1085CT-3.3 AMS1085CM-3.3
AMS1085CT-3.5 AMS1085CM-3.5
AMS1085CT-5.0 AMS1085CM-5.0
PIN CONNECTIONS
FIXED VERSION
1- Ground
2- V
OUT
3- V
IN
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
TO-252
AMS1085CD
AMS1085CD-1.5
AMS1085CD-2.5
AMS1085CD-2.85
AMS1085CD-3.0
AMS1085CD-3.3
AMS1085CD-3.5
AMS1085CD-5.0
ADJUSTABLE VERSION
1- Adjust
2- V
OUT
3- V
IN
3A LOW DROPOUT VOLTAGE REGULATOR
APPLICATIONS
• • High Efficiency Linear Regulators
• • Post Regulators for Switching Supplies
• • Microprocessor Supply
• • Battery Chargers
• • Constant Current Regulators
• • Notebook/Personal Computer Supplies
• • Portable Instrumentation
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
0 to 125° C
0 to 125° C
TO-252 FRONT VIEW
3
TAB IS
2
OUTPUT
1
2L TO-263 FRONT VIEW
3
TAB IS
2
OUTPUT
1
21
AMS1085CT
TO-220 FRONT VIEW
3
TAB IS
2
OUTPUT
1
3L TO-263 FRONT VIEW
3
TAB IS
2
OUTPUT
1