LT1086
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LT1086

1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V

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LTspice LT1086 - LDO Linear Regulators, LTC699 - Supervisory Circuits Download 1.32 KB LTspice LTC690 - Supervisory Circuits, LT1086 - LDO Linear Regulators Download 2.03 KB LTspice LT1086 - LDO Linear Regulators Download 0.99 KB LTspice LT1086 Demo Circuit - 5V, 1.5A Regulator with Improved Ripple Rejection (6.5-17V to 5V @ 1.5A) Download 2.00KB LTspice LT1086 - LDO Linear Regulators Download 0.72 KB
Part Models 21
1ku List Price Starting From $2.35
Features
  • 3-Terminal Adjustable or Fixed 2.85V, 3.3V, 3.6V, 5V, 12V
  • Output Current of 1.5A, (0.5A for LT1086H)
  • Operates Down to 1V Dropout
  • Guaranteed Dropout Voltage at Multiple Current Levels
  • Line Regulation: 0.015%
  • Load Regulation: 0.1%
  • 100% Thermal Limit Functional Test
  • Ripple Rejection >75dB
  • Available in 3-Pin TO-220 and 3-Pin DD Package
Additional Details
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The LT1086 is designed to provide up to 1.5A output current. All internal circuitry is designed to operate down to 1V input-to-output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at several operating points up to a maximum of 1.5V at maximum output current. Dropout decreases at lower load currents. On-chip trimming adjusts the reference/ouput voltage to 1%. Current limit is also trimmed, minimizing the stress on both the regulator and powersource circuitry under overload conditions.

The LT1086 is pin compatible with older 3-terminal adjustableregulators. A minimum 10µF output capacitor isrequired on these devices.

The LT1086 offers excellent line and load regulation specifications and ripple rejection exceeds 75dB even at the maximum load current of 1.5A. The LT1086 is floating architecture with a composite NPN output stage. All of the quiescent current and the drive current for the output stage flows to the load increasing efficiency.

The LT1086 is available in a 3-pin TO-220 package and a space-saving surface mountable 3-pin DD package.

Applications

  • SCSI-2 Active Terminator
  • High Efficiency Linear Regulators
  • Post Regulators for Switching Supplies
  • Constant Current Regulators
  • Battery Chargers
  • Microprocessor Supply
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file View Data Sheet
Documentation View All Documentation
LTspice LT1086 - LDO Linear Regulators, LTC699 - Supervisory Circuits Download 1.32 KB LTspice LTC690 - Supervisory Circuits, LT1086 - LDO Linear Regulators Download 2.03 KB LTspice LT1086 - LDO Linear Regulators Download 0.99 KB LTspice LT1086 Demo Circuit - 5V, 1.5A Regulator with Improved Ripple Rejection (6.5-17V to 5V @ 1.5A) Download 2.00KB LTspice LT1086 - LDO Linear Regulators Download 0.72 KB
Part Models 21
1ku List Price Starting From $2.35
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LT1086

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Data Sheet

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UPDATED 08/23/2007
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LT1086: 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V Data Sheet

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Application Note

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UPDATED 09/08/2010
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AN32 - High Efficiency Linear Regulators redirect icon

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UPDATED 09/20/2010
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AN35 - Step Down Switching Regulators redirect icon

5.00M

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UPDATED 08/20/2007
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AN58 - 5V to 3.3V Converters for Microprocessor Systems redirect icon

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UPDATED 08/20/2007
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AN67 - Linear Technology Magazine Circuit Collection, Volume III redirect icon

1.00M

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UPDATED 08/20/2007
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AN31 - Linear Circuits for Digital Systems redirect icon

1.00M

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UPDATED 03/08/2013
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AN29 - Some Thoughts on DC-DC Converters redirect icon

1.00M

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UPDATED 08/20/2007
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AN64 - Using the LTC1325 Battery Management IC: redirect icon

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UPDATED 10/31/2008
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AN30 - Switching Regulator Circuit Collection redirect icon

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UPDATED 09/28/2020
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AN-42: Voltage Reference Circuit Collection redirect icon

Design Note

4

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UPDATED 03/26/2014
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DN82 - 5V to 3.3V Regulator with Fail-Safe Switchover redirect icon

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UPDATED 09/01/1993
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Design Note 74: Techniques for Deriving 3.3V from 5V Supplies redirect icon

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UPDATED 03/01/1989
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Design Note 21: Floating Input Extends Regulator Capabilities redirect icon

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UPDATED 11/24/2023
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Design Note 82: 5V to 3.3V Regulator with Fail-Safe Switchover redirect icon

Reliability Data

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UPDATED 03/26/2018
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R006 Reliability Data redirect icon

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Documentation

Technical Documents 15
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Data Sheet 1

LT1086: 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V Data Sheet

Reliability Data 1

R006 Reliability Data

Application Note 9

AN32 - High Efficiency Linear Regulators
AN35 - Step Down Switching Regulators
AN58 - 5V to 3.3V Converters for Microprocessor Systems
AN67 - Linear Technology Magazine Circuit Collection, Volume III
AN31 - Linear Circuits for Digital Systems
AN29 - Some Thoughts on DC-DC Converters
AN64 - Using the LTC1325 Battery Management IC:
AN30 - Switching Regulator Circuit Collection
AN-42: Voltage Reference Circuit Collection

Design Note 4

DN82 - 5V to 3.3V Regulator with Fail-Safe Switchover
Design Note 74: Techniques for Deriving 3.3V from 5V Supplies
Design Note 21: Floating Input Extends Regulator Capabilities
Design Note 82: 5V to 3.3V Regulator with Fail-Safe Switchover

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1086CM#PBF 3-Lead DD Pak external-link
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LT1086CM-3.3#PBF 3-Lead DD Pak external-link
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LT1086CM-3.3#TRPBF 3-Lead DD Pak external-link
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LT1086CM-3.6#PBF 3-Lead DD Pak external-link
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LT1086CM-3.6#TRPBF 3-Lead DD Pak external-link
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LT1086CT#PBF 3-Lead TO-220 external-link
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LT1086CT-12#PBF 3-Lead TO-220 external-link
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LT1086CT-2.85#PBF 3-Lead TO-220 external-link
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LT1086IM#PBF 3-Lead DD Pak external-link
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LT1086IM#TRPBF 3-Lead DD Pak external-link
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LT1086IM-3.3#TRPBF 3-Lead DD Pak external-link
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LT1086IT#36PBF 3-Lead TO-220 (Flow 36) external-link
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LT1086IT#PBF 3-Lead TO-220 external-link
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LT1086IT-12#PBF 3-Lead TO-220 external-link
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LT1086IT-3.3#PBF 3-Lead TO-220 external-link
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LT1086IT-5#PBF 3-Lead TO-220 external-link
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Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark

LT1086CM#PBF

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Software & Part Ecosystem

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LT1963A Series
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1.5A, Low Noise, Fast Transient Response LDO Regulators

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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1.32 K

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LTC690 - Supervisory Circuits, LT1086 - LDO Linear Regulators Download

2.03 K

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LT1086 - LDO Linear Regulators Download

0.99 K

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LT1086 Demo Circuit - 5V, 1.5A Regulator with Improved Ripple Rejection (6.5-17V to 5V @ 1.5A) Download

2.00K

spice tool Lt Spice

LT1086 - LDO Linear Regulators Download

0.72 K

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