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MFG:NS
Part Number: LM1085
MFG: NS
Description: The LM1085 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 3A...
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LM1085
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DataSheet
General Description
LM1085 General Description
The LM1085 is a series of low dropout positive voltage regulators 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 reference, current limiting and thermal shutdown.
The LM1085 series is available in TO-220 and TO-263 packages. Refer to the LM1084 for the 5A version, and the LM1086 for the 1.5A version.
LM1085 Maximum Ratings
Maximum Input to Output Voltage Differential
LM1085-ADJ .................................................................................29V
LM1085-12 ..................................................................................18V
LM1085-3.3 .................................................................................27V
LM1085-5.0 .................................................................................25V
Power Dissipation (Note 2) Internally Limited
Junction Temperature (TJ)(Note 3) .........................................150°C
Storage Temperature Range ..................................-65°C to 150°C
Lead Temperature .................................................260°C, to 10 sec
ESD Tolerance (Note 4) ............................................................2000V
LM1085-ADJ .................................................................................29V
LM1085-12 ..................................................................................18V
LM1085-3.3 .................................................................................27V
LM1085-5.0 .................................................................................25V
Power Dissipation (Note 2) Internally Limited
Junction Temperature (TJ)(Note 3) .........................................150°C
Storage Temperature Range ..................................-65°C to 150°C
Lead Temperature .................................................260°C, to 10 sec
ESD Tolerance (Note 4) ............................................................2000V
LM1085 Features
·Available in 3.3V, 5.0V, 12V and Adjustable Versions
· Current Limiting and Thermal Protection
· Output Current 3A
·Line Regulation 0.015% (typical)
· Load Regulation 0.1% (typical)
· Current Limiting and Thermal Protection
· Output Current 3A
·Line Regulation 0.015% (typical)
· Load Regulation 0.1% (typical)
LM1085 Typical Application
· High Efficiency Linear Regulators
·Battery Charger
· Post Regulation for Switching Supplies
· Constant Current Regulator
·Microprocessor Supply
LM1085
PDF/DataSheet Download
- Datasheet: LM1085
- File Size: 762311 KB
- Manufacturer: NSC [National Semiconductor]
- Click here to Download
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LM1085 Relative Products
LM1084IT-ADJ/NOPB
IC REG POSITIVE 5A LDO TO-220
-
LM1084IT-5.0/NOPB
IC REG POSITIVE 5A LDO TO-220
-
LM1084IT-3.3/NOPB
IC REG POSITIVE 5A LDO TO-220
-
LM1084IT-12/NOPB
IC REG POSITIVE 5A LDO TO-220
LM1084ISX-ADJ/NOPB
IC REG POS ADJ 5A LDO TO-263
-
LM1084ISX-5.0/NOPB
IC REG POS 5V 5A LDO TO-263
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