LT3086
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LT3086

40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation

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LTspice LT3086 - LDO Linear Regulators Download 5.38 KB LTspice LT3086 Demo Circuit - USB Supply with Cable Drop Compensation (1.55-40V to 5V @ 2.1A) Download 2.00KB LTspice LT3086 Demo Circuit - Adjustable Voltage Controlled Current Source Download 2.00KB
Part Models 23
1ku List Price Starting From $3.61
Features
  • Wide Input Voltage Range: 1.4V to 40V
  • 1 Resistor Sets Output Voltage: 0.4V to 32V
  • Output Current: 2.1A
  • ±2% Tolerance Over Line, Load and Temperature
  • Output Current Monitor: IMON = IOUT/1000
  • Temperature Monitor with Programmable Thermal Limit
  • Programmable Cable Drop Compensation
  • Parallel Multiple Devices for Higher Current
  • Dropout Voltage: 330mV
  • 1 Capacitor Soft-Starts Output and Decreases Noise
  • Low Output Noise: 40μVRMS (10Hz to 100kHz)
  • Precision, Programmable External Current Limit
  • Power Good Flag with Programmable Threshold
  • Ceramic Output Capacitors: 10μF Minimum
  • Quiescent Current in Shutdown: <1μA
  • Reverse-Battery, -Current and -Output Protection
  • Available in 5mm × 4mm 16-Lead DFN, 16-Lead TSSOP, 7-Lead DD-Pak and 7-Lead TO-220.

LT3086-EP Supports defense and aerospace applications (AQEC standard)

  • Download LT3086-EP data sheet (pdf)
  • Military temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Product change notification
  • Qualification data available on request
  • V62/22602
Additional Details
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The LT3086 is a multi-feature, low dropout, low noise 2.1A linear regulator that operates over a 1.4V to 40V input supply range. Dropout voltage at 2.1A is typically 330mV. One resistor sets output voltage from 0.4V to 32V. Output voltage tolerance is guaranteed to ±2% over line, load and temperature. The LT3086 is stable with ceramic output capacitors, requiring a minimum of 10μF.

The LT3086’s programmable cable drop compensation cancels output voltage errors caused by resistive connections to the load. A master/slave configuration allows paralleling of multiple devices for higher load current and heat spreading without external ballast resistor requirements.

Output current and temperature monitoring along with a power good flag provide system diagnostic and debug capability. Internal fault circuitry includes thermal shutdown and current limit with foldback. Thermal limit and current limit are also externally programmable.

Packages include the thermally enhanced 16-lead (5mm × 4mm) DFN, 16-lead TSSOP, 7-lead DD-Pak and 7-lead TO-220.

Applications

  • Programmable Linear Regulator
  • Post Regulator for Switching Supplies
  • USB Power Supplies
  • High Reliability Power Supplies
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file View Data Sheet (Rev.C)
Documentation View All Documentation
LTspice LT3086 - LDO Linear Regulators Download 5.38 KB LTspice LT3086 Demo Circuit - USB Supply with Cable Drop Compensation (1.55-40V to 5V @ 2.1A) Download 2.00KB LTspice LT3086 Demo Circuit - Adjustable Voltage Controlled Current Source Download 2.00KB
Part Models 23
1ku List Price Starting From $3.61
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LT3086

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UPDATED 03/01/2024
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LT3086: 40V, 2.1A Low Dropout Adjustable Linear Regulator Data Sheet (Rev.C)

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UPDATED 11/24/2021
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LT3086 Military Data Sheet

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LT3086-EP: 40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation Data Sheet

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User Guide

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Documentation

Product Selector Card 2

High Performance Low Dropout Linear Regulators (LDOs)
New 3-Terminal Regulators Add Functionality

Solutions Bulletin & Brochure 2

Linear Low Dropout (LDO) Regulator Solutions
The Voltage You Want Where You Want It

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2

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Video

2017-09-18

2.1A LDO+ Regulator Features Cable Drop Compensation and Monitors Current and Temperature

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2017-09-18

Low Voltage Power Supplies

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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
LT3086EDHD#PBF 16-Lead DFN (5mm x 4mm w/ EP) external-link
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LT3086EDHD#TRPBF 16-Lead DFN (5mm x 4mm w/ EP) external-link
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LT3086EFE#PBF 16-Lead TSSOP w/ EP external-link
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LT3086EFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LT3086ER#PBF 7-Lead DD Pak external-link
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LT3086ER#TRPBF 7-Lead DD Pak external-link
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LT3086ET7#PBF 7-Lead TO-220 external-link
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LT3086FE#TRZ-EP 16-Lead TSSOP w/ EP external-link
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LT3086FE#Z-EP 16-Lead TSSOP w/ EP external-link
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LT3086HFE#PBF 16-Lead TSSOP w/ EP external-link
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LT3086HFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LT3086IDHD#PBF 16-Lead DFN (5mm x 4mm w/ EP) external-link
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LT3086IDHD#TRPBF 16-Lead DFN (5mm x 4mm w/ EP) external-link
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LT3086IFE#PBF 16-Lead TSSOP w/ EP external-link
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LT3086IFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LT3086IR#PBF 7-Lead DD Pak external-link
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LT3086IR#TRPBF 7-Lead DD Pak external-link
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LT3086IT7#PBF 7-Lead TO-220 external-link
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LT3086MPFE#PBF 16-Lead TSSOP w/ EP external-link
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LT3086MPFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LT3086MPR#PBF 7-Lead DD Pak external-link
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LT3086MPR#TRPBF 7-Lead DD Pak external-link
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LT3086MPT7#PBF 7-Lead TO-220 external-link
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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3086EFE#PBF

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3086EFE#PBF

PRODUCTION

LT3086EFE#TRPBF

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LT3086FE#TRZ-EP

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LT3086FE#Z-EP

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LT3086HFE#PBF

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Material_Report

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Delta Qualification Matrix

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Aug 10, 2022

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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

LT3086ER#PBF

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LT3086ER#TRPBF

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LT3086ET7#PBF

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LT3086IR#PBF

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LT3086IR#TRPBF

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LT3086IT7#PBF

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Software & Part Ecosystem

Parts Product Life Cycle Description

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Evaluation Kits 1

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DC1729A

LT3086 Demo Board | Low Dropout Linear Regulator, Monitoring and Cable Drop Compensation, 1.55V ≤ VIN ≤ 40V, VOUT = 1.0V/1.2V/1.5V/3.3V/5V/12V @ 2.1A

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DC1729A

LT3086 Demo Board | Low Dropout Linear Regulator, Monitoring and Cable Drop Compensation, 1.55V ≤ VIN ≤ 40V, VOUT = 1.0V/1.2V/1.5V/3.3V/5V/12V @ 2.1A

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DC1729A
LT3086 Demo Board | Low Dropout Linear Regulator, Monitoring and Cable Drop Compensation, 1.55V ≤ VIN ≤ 40V, VOUT = 1.0V/1.2V/1.5V/3.3V/5V/12V @ 2.1A
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Product Detail

Demonstration circuit 1729A is a 2.1A low dropout adjustable linear regulator featuring the LT3086. The device is designed with multiple features and operates over a wide 1.4V to 40V input supply range. The LT3086 requires only one resistor to set the output voltage from 0.4V to 32V and it is stable with ceramic output capacitors requiring a minimum of 10μF.

Resources

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DC1729A - Schematic Download

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DC1729A - Design Files Download

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DC1729A - Demo Manual Download

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Evaluation Kits1

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DC1729A

LT3086 Demo Board | Low Dropout Linear Regulator, Monitoring and Cable Drop Compensation, 1.55V ≤ VIN ≤ 40V, VOUT = 1.0V/1.2V/1.5V/3.3V/5V/12V @ 2.1A

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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LT3086 Demo Circuit - Adjustable Voltage Controlled Current Source Download

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LT3086 Demo Circuit - USB Supply with Cable Drop Compensation (1.55-40V to 5V @ 2.1A) Download

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LT3086 - LDO Linear Regulators Download

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