LT8361

RECOMMENDED FOR NEW DESIGNS

LT8361

Low I_Q Boost/SEPIC/Inverting Converter with 2A, 100V Switch

RECOMMENDED FOR NEW DESIGNS

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Part Models 12

1ku List Price Starting From $2.43

Features

Wide Input Voltage Range: 2.8V to 60V
Ultralow Quiescent Current and Low Ripple Burst Mode^® Operation: I_Q = 9μA
2A, 100V Power Switch
Positive or Negative Output Voltage Programming with a Single Feedback Pin
Programmable Frequency (300kHz to 2MHz)

Synchronizable to an External Clock
Spread Spectrum Frequency Modulation for Low EMI
BIAS Pin for Higher Efficiency
Programmable Undervoltage Lockout (UVLO)
Thermally Enhanced 16-lead MSOP packages
AEC-Q100 Qualified for Automotive Applications

Additional Details

The LT8361 is a current mode DC/DC converter with a 100V, 2A switch operating from a 2.8V to 60V input. With a unique single feedback pin architecture it is capable of boost, SEPIC or inverting configurations. Burst Mode operation consumes as low as 9μA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 15mV.

An external compensation pin allows optimization of loop bandwidth over a wide range of input and output voltages and programmable switching frequencies between 300kHz and 2MHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skip modes of operation with or without Spread Spectrum Frequency Modulation for low EMI. For increased efficiency, a BIAS pin can accept a second input to supply the INTV_CC regulator. Additional features include frequency foldback and programmable soft-start to control inductor current during startup.

The LT8361 is available in a thermally enhanced 16-lead MSOP package with four pins removed for high voltage pin spacings.

APPLICATIONS

Industrial and Automotive
Telecom
Medical Diagnostic Equipment
Portable Electronics

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 12

1ku List Price Starting From $2.43

Technical Documents 3

LT8361: Low I_Q Boost/SEPIC/Inverting Converter with 2A, 100V Switch Data Sheet (Rev.A) 05/02/2018

R570 Reliability Data 03/23/2018

DC2599A Demo Board Manual (Rev.0) 08/31/2018

Reference Materials 1

60 V and 100 V, Low IQ Boost/SEPIC/Inverting Converters for Compact, Efficient, Low EMI Power Supplies 08/03/2018

Design Resources 12

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
LT8361EMSE#PBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361EMSE#TRPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361EMSE#WPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361EMSE#WTRPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361HMSE#PBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361HMSE#TRPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361HMSE#WPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361HMSE#WTRPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361IMSE#PBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361IMSE#TRPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361IMSE#WPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8361IMSE#WTRPBF	16(12)-Lead MSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LT8361EMSE#PBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361EMSE#TRPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361EMSE#WPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361EMSE#WTRPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361HMSE#PBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361HMSE#TRPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361HMSE#WPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361HMSE#WTRPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361IMSE#PBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361IMSE#TRPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361IMSE#WPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT8361IMSE#WTRPBF
Pin/Package Drawing
16(12)-Lead MSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361EMSE#WPBF

LT8361EMSE#WTRPBF

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361HMSE#WPBF

LT8361HMSE#WTRPBF

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

LT8361IMSE#WPBF

LT8361IMSE#WTRPBF

pdf

PCN24_0003_Form

xls

Material_Report

pdf

Qualification Results Summary

xlsm

Delta Qualification Matrix

Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

pdf

PCN20_0129_Form

xls

Material_Report

Dec 9, 2019

- 19_0278

LT8361 Data sheet limit changes.

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

pdf

PCN19_0278_Form

xls

Material_Report

pdf

Datasheet Specification Comparison

Apr 11, 2019

- 19_0067

Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

pdf

PCN19_0067_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

pdf

Qualification Results Summary

Detailed Parts List

pdf

Other

Jun 21, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LT8361HMSE#WPBF

LT8361HMSE#WTRPBF

pdf

PCN22_0050_Form

xls

Material_Report

pdf

Qualification Results Summary

xlsm

Delta Qualification Matrix

Filter by Model

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361EMSE#WPBF

LT8361EMSE#WTRPBF

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361HMSE#WPBF

LT8361HMSE#WTRPBF

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

LT8361IMSE#WPBF

LT8361IMSE#WTRPBF

pdf

PCN24_0003_Form

xls

Material_Report

pdf

Qualification Results Summary

xlsm

Delta Qualification Matrix

Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

pdf

PCN20_0129_Form

xls

Material_Report

Dec 9, 2019

- 19_0278

LT8361 Data sheet limit changes.

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

pdf

PCN19_0278_Form

xls

Material_Report

pdf

Datasheet Specification Comparison

Apr 11, 2019

- 19_0067

Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8361EMSE#PBF

PRODUCTION

LT8361EMSE#TRPBF

PRODUCTION

LT8361HMSE#PBF

PRODUCTION

LT8361HMSE#TRPBF

PRODUCTION

LT8361IMSE#PBF

PRODUCTION

LT8361IMSE#TRPBF

PRODUCTION

pdf

PCN19_0067_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

pdf

Qualification Results Summary

Detailed Parts List

pdf

Other

Jun 21, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LT8361HMSE#WPBF

LT8361HMSE#WTRPBF

pdf

PCN22_0050_Form

xls

Material_Report

pdf

Qualification Results Summary

xlsm

Delta Qualification Matrix

DC2599A

LT8361 Demo Board | SEPIC, VIN = 4.5V to 48, VOUT= 24V @ up to 600mA

LT8361 Demo Board | SEPIC, VIN = 4.5V to 48, VOUT= 24V @ up to 600mA

Download

DC2599A

LT8361 Demo Board | SEPIC, VIN = 4.5V to 48, VOUT= 24V @ up to 600mA

Buy Now View Details

Product Detail

Demonstration circuit 2599A features the LT8361 in a SEPIC configuration. It operates with a switching frequency of 400kHz and is designed to convert a 4.5V to 48V source to 24V, with up to 600mA output current (depending on input voltage).

The LT8361 can operate with inputs as high as 60V. However, in this demo circuit, the input is limited by the voltage rating of the input capacitors.

The demo board contains a selectable jumper, JP1, to aid in the selection of the desired Sync pin mode of operation. The default setting is Burst Mode^® operation.

This layout is optimized for good EMI performance and small solution size. Input and output filters and an optimized power switching loop, comprised of C20 and C21 are necessary to pass CISPR 25 Class 5 emissions, and are added by default. These components can be excluded in applications not requiring noise immunity.

The data sheet gives a complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo manual.

Resources

PDF

DC2599A Demo Board Manual (Rev.0)

400.85 K

PDF

DC2599A Schematic

102.34 K

ZIP

DC2599A Design Files

1.32 M

DC2599A

LT8361 Demo Board | SEPIC, VIN = 4.5V to 48, VOUT= 24V @ up to 600mA

LTspice 3

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.