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LM1085 - 3A Low Dropout Positive Regulators

Download the LM1085 datasheet PDF. This datasheet also covers the LM1 variant, as both devices belong to the same 3a low dropout positive regulators family and are provided as variant models within a single manufacturer datasheet.

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.

Key Features

  • n Available in 3.3V, 5.0V, 12V and Adjustable Versions n Current Limiting and Thermal Protection n Output Current 3A n Line Regulation 0.015% (typical) n Load Regulation 0.1% (typical).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM1-085.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM1085 3A Low Dropout Positive Voltage Regulator CYStech Electronics
LM1085 3A L.D.O. VOLTAGE REGULATOR HTC
LM1085 3-A Low Dropout Positive Regulators Texas Instruments
LM1085-05-220M LOW DROPOUT 3 AMP POSITIVE VOLTAGE REGULATOR Semelab
LM1085-12-220M LOW DROPOUT 3 AMP POSITIVE VOLTAGE REGULATOR Semelab

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM108 Operational Amplifiers
LM1084 5A Low Dropout Positive Regulators
LM1086 1.5A Low Dropout Positive Regulators
LM108A Operational Amplifiers
LM108AJAN Operational Amplifiers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM1085 3A Low Dropout Positive Regulators August 2001 LM1085 3A Low Dropout Positive Regulators 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 1.5V version.