National Semiconductor LM1086 Low Dropout Positive Regulator Datasheet

The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 1.5A of load current. It has the same pin-out as National Semiconductor’s industry standard LM317. The LM1086 is available in an adjustable version, which can set the output voltage with only two external resistors. It is also available in six fixed voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V. The fixed versions integrate the adjust resistors. The LM1086 circuit includes a zener trimmed bandgap ref- erence, current limiting and thermal shutdown.


National Semiconductor LM1086 Low Dropout Positive Regulator Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
15
File format
PDF
File size
807 KB
Published
06 June, 2012
Updated
30 September, 2023
MD5 checksum
F0A651F5A728AA46CFED3E09AA7CD1BA

About this manual

The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 1.5A of load current. It features the same pin-out as National Semiconductor's industry standard LM317 and includes current limiting, thermal shutdown, and high efficiency. The device is available in adjustable versions that set output voltage with two external resistors, or in six fixed voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, and 5.0V.

What's inside

  • General Description
  • Ordering Information
  • Absolute Maximum Ratings
  • Operating Ratings
  • Electrical Characteristics
  • Typical Performance Characteristics
  • Application Note

Specifications

Output Current1.5A
Maximum Dropout Voltage1.5V at 1.5A load current
Line Regulation (Typical)0.015%
Load Regulation (Typical)0.1%
Reference Voltage1.25V

Frequently asked questions

What are the available fixed output voltages?

Fixed versions are available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, and 5.0V.

What packages are the LM1086 available in?

The series is available in TO-220, TO-263, and LLP packages.

Does the device include thermal protection?

Yes, the circuit includes current limiting and thermal shutdown.

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