LM1085IS-3.3 National Semiconductor, LM1085IS-3.3 Datasheet
LM1085IS-3.3
Manufacturer Part Number
LM1085IS-3.3
Description
Linear Voltage Regulator IC
Manufacturer
National Semiconductor
Datasheets
1.LM1085ISX-5.0.pdf
(13 pages)
2.LM1085ISX-5.0.pdf
(13 pages)
3.LM1085ISX-5.0.pdf
(13 pages)
Specifications of LM1085IS-3.3
No. Of Pins
3
Output Current
3A
Termination Type
SMD
Mounting Type
Through Hole
Voltage Regulator Type
LDO Linear
Peak Reflow Compatible (260 C)
No
Current Rating
3A
Output Voltage Max
3.3V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM1085IS-3.3
Manufacturer:
NS/TI
Quantity:
20 000
Part Number:
LM1085IS-3.3/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
© 1999 National Semiconductor Corporation
LM1085
3A Low Dropout Positive Regulators
General Description
The LM1085 is a series of low dropout positive voltage regu-
lators with a maximum dropout of 1.5V at 3A of load current.
It has the same pin-out as National Semiconductor’s industry
standard LM317.
The LM1085 is available in an adjustable version, which can
set the output voltage with only two external resistors. It is
also available in three fixed voltages: 3.3V, 5.0V and 12.0V.
The fixed versions integrate the adjust resistors.
The LM1085 circuit includes a zener trimmed bandgap refer-
ence, current limiting and thermal shutdown.
The LM1085 series is available in TO-220 and TO-263 pack-
ages.
Connection Diagrams
Basic Functional Diagram, Adjustable Version
Top View
TO-220
DS100947-2
DS100947
Features
n Available in 3.3V, 5.0V, 12V and Adjustable Versions
n Current Limiting and Thermal Protection
n Output Current
n Line Regulation
n Load Regulation
Applications
n High Efficiency Linear Regulators
n Battery Charger
n Post Regulation for Switching Supplies
n Constant Current Regulator
n Microprocessor Supply
DS100947-65
Top View
TO-263
DS100947-4
0.015% (typical)
0.1% (typical)
www.national.com
July 1999
3A
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