Solved by
SP1085
TM
3A Low Dropout Linear Regulator
features
Low Dropout Voltage: Typical 1.3V at 3A
Current Limiting and Thermal Protection
Output Current: 3A
Current Limit: 4.5A
Operating Junction Temperature: 0 to 125
o
C
Line Regulation: 0.015% (Typical)
Load Regulation: 0.1% (Typical)
Available in RoHS Compliant, Lead Free
Packaging
TO-220
3
2
1
INPUT
OUTPUT
ADJ/GND
Applications
High Efficiency Linear Regulators
Battery Charger
Post Regulation for Switching Supplies
Microprocessor Supply
Mother Board Power Supplies
DVD - Video Player
Telecom Equipment
Set Top
Boxes
and Web Box Modular Supplies
general Description
The SP1085 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 3A of load
current. The series features on-chip thermal shutdown. It also includes a bandgap reference and a current limiting circuit.
The SP1085 is available in 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V and adjustable versions. The fixed versions integrate
the adjust resistors. The adjustable version can set the output voltage with two external resistors. The SP1085 series is
available in standard packages of TO-263-3L, TO-220 and TO-252.
TO-263-3L
TO-252
Figure . Package Types of SP085
TO-220
Date: 7/24/06 Rev H
SP085 3A Low Dropout Linear Regulator
© 2006 Sipex Corporation
SIPEX [ SIPEX CORPORATION ]
