LT1339
Info: : PRODUCTION
searchIcon
cartIcon

LT1339

High Power Synchronous DC/DC Controller

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Viewing: Part Details
arrow-icon

Not the part you were looking for?

viewall Go to Product Selection Table
file View Data Sheet
Documentation View All Documentation
LTspice LT1339 - Step-Down (Buck) Regulators Download 3.85 KB
Part Models 6
1ku List Price Starting From $6.87
Features
  • High Voltage: Operation Up to 60V
  • High Current: Dual N-Channel Synchronous Drive Handles Up to 10,000pF Gate Capacitance
  • Programmable Average Load Current Limiting
  • 5V Reference Output with 10mA External Loading Capability
  • Programmable Fixed Frequency Synchronizable Current Mode Operation Up to 150kHz
  • Undervoltage Lockout with Hysteresis
  • Programmable Start Inhibit for Power Supply Sequencing and Protection
  • Adaptive Nonoverlapping Gate Drive Prevents Shoot-Through
Additional Details
show more Icon

The LT1339 is a high power synchronous current mode switching regulator controller. The IC drives dual N-channel MOSFETs to create a single IC solution for high power DC/DC converters in applications up to 60V.

The LT1339 incorporates programmable average current limiting, allowing accurate limiting of DC load current independent of inductor ripple current. The IC also incorporates user-adjustable slope compensation for minimization of magnetics at duty cycles up to 90%.

The LT1339 timing oscillator operating frequency is programmable and can be synchronized up to 150kHz. Minimum off-time operation provides main switch protection. The IC also incorporates a soft start feature that is gated by both shutdown and undervoltage lockout conditions.

An output phase reversal pin allows flexibility in configuration of converter types, including inverting and negative topologies.

Applications

  • 48V Telecom Power Supplies
  • Personal Computers and Peripherals
  • Distributed Power Converters
  • Industrial Control Systems
  • Lead-Acid Battery Backup Systems
  • Automotive and Heavy Equipment
Show More Arrow image
file View Data Sheet
Documentation View All Documentation
LTspice LT1339 - Step-Down (Buck) Regulators Download 3.85 KB
Part Models 6
1ku List Price Starting From $6.87
modal bookmark icon

{{modalTitle}}

modal close icon

{{modalDescription}}

{{dropdownTitle}}

input down arrow
  • {{defaultSelectedText}}
    • {{#each projectNames}}
  • {{name}}
    • {{/each}} {{#if newProjectText}}
  • plus icon {{newProjectText}}
    • {{/if}}
{{#if toggleButtonDescription}}
{{toggleButtonDescription}}
{{/if}} {{#if newProjectTitle}}

{{newProjectTitle}}

{{projectNameErrorText}}

{{/if}}

LT1339

Documentation

11
overlayclose

Filters

1 Applied

mobileoverlaydownarrow
  • All
    TickIcon
  • Application Note
  • Data Sheet
  • User Guide
  • Reliability Data
  • Technical Articles
  • Design Note
  • All
    TickIcon
  • English
  • Japanese
resetfilter

Reset Filters

Data Sheet

2

PDF Vector

PDF

UPDATED 08/31/2007
English

LT1339: High Power Synchronous DC/DC Controller Data Sheet

Open PDF File

redirect
292.00K
download

Download PDF

PDF Vector

PDF

UPDATED 02/21/2008
Japanese

LT1339: 高電力同期整流式DC/DCコントローラ データシート

Open PDF File

redirect
179.00K
download

Download PDF

Application Note

2

PDF Vector

PDF

UPDATED 08/20/2007
English
AN73 - LT1339 Design Manual redirect icon

633.00K

download

Download PDF

PDF Vector

HTML

UPDATED 02/01/1999
English
AN-73: LT1339 Design Manual redirect icon

User Guide

3

PDF Vector

PDF

UPDATED 09/24/2009
English
DC259A - Demo Manual redirect icon

532.00K

download

Download PDF

PDF Vector

PDF

UPDATED 09/24/2009
English
DC224A - Demo Manual redirect icon

102.00K

download

Download PDF

PDF Vector

PDF

UPDATED 09/24/2009
English
DC244A - Demo Manual redirect icon

55.00K

download

Download PDF

Reliability Data

1

PDF Vector

PDF

UPDATED 03/26/2018
English
R352 Reliability Data redirect icon

20.34 K

download

Download PDF

Technical Articles

1

PDF Vector

HTML

UPDATED 09/01/1999
English
35 Watt Isolated DC/DC Converter Replaces Modules at Half the Cost redirect icon

Design Note

2

PDF Vector

HTML

UPDATED 06/01/1997
English
Design Note 156: High Power Synchronous Buck Converter Delivers Up to 50A redirect icon

PDF Vector

HTML

UPDATED 06/01/1997
Japanese
DN-156: 最大50Aの高出力同期式降圧コンバータ redirect icon

There are no results matching this criteria. Try resetting your filters or searching for a different term

close icon

Documentation

Technical Documents 9
show more Icon

Data Sheet 1

LT1339: High Power Synchronous DC/DC Controller Data Sheet

Reliability Data 1

R352 Reliability Data

User Guide 3

DC259A - Demo Manual
DC224A - Demo Manual
DC244A - Demo Manual

Application Note 2

AN73 - LT1339 Design Manual
AN-73: LT1339 Design Manual

Design Note 1

Design Note 156: High Power Synchronous Buck Converter Delivers Up to 50A

Technical Articles 1

35 Watt Isolated DC/DC Converter Replaces Modules at Half the Cost

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
LT1339CN#PBF 20-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1339CSW#PBF 20-Lead SOIC (Wide 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1339CSW#TRPBF 20-Lead SOIC (Wide 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1339IN#PBF 20-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1339ISW#PBF 20-Lead SOIC (Wide 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1339ISW#TRPBF 20-Lead SOIC (Wide 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 7, 2019

- 19_0046

Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek

LT1339CN#PBF

PRODUCTION

LT1339IN#PBF

PRODUCTION

pdf

PCN19_0046_Form

external-icon

xls

Material_Report

Download

Detailed Change Description

pdf

Qualification Results Summary

external-icon

Aug 10, 2022

- 22_0176

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1339CSW#PBF

PRODUCTION

LT1339CSW#TRPBF

PRODUCTION

LT1339ISW#PBF

PRODUCTION

LT1339ISW#TRPBF

PRODUCTION

pdf

PCN22_0176_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 7, 2019

- 19_0046

arrow down

Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek

LT1339CN#PBF

PRODUCTION

LT1339IN#PBF

PRODUCTION

pdf

PCN19_0046_Form

external-icon

xls

Material_Report

Download
Detailed Change Description

pdf

Qualification Results Summary

external-icon
Aug 10, 2022

- 22_0176

arrow down

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1339CSW#PBF

PRODUCTION

LT1339CSW#TRPBF

PRODUCTION

LT1339ISW#PBF

PRODUCTION

LT1339ISW#TRPBF

PRODUCTION

pdf

PCN22_0176_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Software & Part Ecosystem

Evaluation Kits 7

DC177A

LT1339CN | Synchronous DC/DC High Power Controller, 28VIN to 5VOUT @ 50A

DC147A-C

LT1339CN Demo Board | Synchronous Buck, 48VIN to 12VOUT @ 50A

DC147A-D

LT1339CN | High Power Synchronous DC/DC Converter 48VIN to 12VOUT @ 20A

reference details image

DC259A

LT1339, LTC1693, LT1431 Isolated Demo Board | Telecom Module, 36 to 72VIN, 5V or 3.3VOUT @ 10A

zoom

DC259A

LT1339, LTC1693, LT1431 Isolated Demo Board | Telecom Module, 36 to 72VIN, 5V or 3.3VOUT @ 10A

download icon

Download

 print icon

Print
DC259A
LT1339, LTC1693, LT1431 Isolated Demo Board | Telecom Module, 36 to 72VIN, 5V or 3.3VOUT @ 10A
Buy Now View Details

Product Detail

Demo Board DC259A provides an isolated 3.3V or 5VOUT at 10A from a 36 to 72VDC source. The DC259A includes the following products:

LT1431 - Programmable Reference

LT1339 - High Power Synchronous DC/DC Controller

LTC1693 - High Speed Single/Dual N-Channel MOSFET Drivers

Resources

pdf icon

PDF

DC259A - Demo Manual Download

532.00K

pdf icon

PDF

DC259A - Schematic Download

66.00K

pdf icon

ZIP

DC259A - Design File Download

559.00K

Show More Arrow image

DC244A

LT1339, LT1373, LT1431 | 32VIN to 12VOUT @ 15A, -5VOUT @ 100mA

reference details image

DC224A

LT1339CSW/LT1082CQ | Buck Controller, 4.5V to 60VIN, 3.3V/5V/7V/ 12VOUT @ 3Amp (thru-hole caps)

zoom

DC224A

LT1339CSW/LT1082CQ | Buck Controller, 4.5V to 60VIN, 3.3V/5V/7V/ 12VOUT @ 3Amp (thru-hole caps)

download icon

Download

 print icon

Print
DC224A
LT1339CSW/LT1082CQ | Buck Controller, 4.5V to 60VIN, 3.3V/5V/7V/ 12VOUT @ 3Amp (thru-hole caps)
Buy Now View Details

Product Detail

Demonstration circuit DC224A is a multipurpose, 3 amp synchronous step-down switching regulator using the LT1339. The input voltage range is 4.5V to 60V. The output voltage is jumper selectable for 3.3V, 5V, 7V or 12V. The board includes a small SEPIC converter based on the LT1082 that provides 12V for the LT1339 with any input voltage of 4V to 60V. 

Resources

pdf icon

PDF

DC224A - Demo Manual Download

102.00K

pdf icon

ZIP

DC224A - Design File Download

398.00K

pdf icon

PDF

DC224A - Schematic Download

67.00K

Show More Arrow image

DC147A-B

LT1339CN | High Power Synchronous DC/DC Converter 48VIN to 5VOUT @ 20A

Evaluation Kits7

DC177A

LT1339CN | Synchronous DC/DC High Power Controller, 28VIN to 5VOUT @ 50A

DC147A-C

LT1339CN Demo Board | Synchronous Buck, 48VIN to 12VOUT @ 50A

DC147A-D

LT1339CN | High Power Synchronous DC/DC Converter 48VIN to 12VOUT @ 20A
evaluation kit item images

DC259A

LT1339, LTC1693, LT1431 Isolated Demo Board | Telecom Module, 36 to 72VIN, 5V or 3.3VOUT @ 10A

DC244A

LT1339, LT1373, LT1431 | 32VIN to 12VOUT @ 15A, -5VOUT @ 100mA
evaluation kit item images

DC224A

LT1339CSW/LT1082CQ | Buck Controller, 4.5V to 60VIN, 3.3V/5V/7V/ 12VOUT @ 3Amp (thru-hole caps)

DC147A-B

LT1339CN | High Power Synchronous DC/DC Converter 48VIN to 5VOUT @ 20A

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.

spice tool Lt Spice

LT1339 - Step-Down (Buck) Regulators Download

3.85 K

Recently Viewed

Part Details
Documentation
Evaluation Kit
Tools & Simulations
Latest Discussions