LT3724

PRODUCTION

LT3724

High Voltage, Current Mode Switching Regulator Controller

PRODUCTION

Efficiency and Power Loss vs Load Current slide

Efficiency and Power Loss vs Load Current

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Part Models 6

1ku List Price Starting From $3.77

Features

Wide Input Range: 4V to 60V
Output Voltages up to 36V (Step-Down)
Burst Mode Operation: <100µA Supply Current
10µA Shutdown Supply Current
±1.3% Reference Accuracy
200kHz Fixed Frequency
Drives N-Channel MOSFET
Programmable Soft-Start
Programmable Undervoltage Lockout
Internal High Voltage Regulator for Gate Drive
Thermal Shutdown
Current Limit Unaffected by Duty Cycle
16-Pin Thermally Enhanced TSSOP Package

Additional Details

The LT3724 is a DC/DC controller used for medium power, low part count, low cost, high efficiency supplies. It offers a wide 4V-60V input range (7.5V minimum startup voltage) and can implement step-down, step-up, inverting and SEPIC topologies.

The LT3724 includes Burst Mode operation, which reduces quiescent current below 100µA and maintains high efficiency at light loads. An internal high voltage bias regulator allows for simple biasing and can be back driven to increase efficiency.

Additional features include fixed frequency current mode control for fast line and load transient response; a gate driver capable of driving large N-channel MOSFETs; a precision undervoltage lockout function; 10µA shutdown current; short-circuit protection; and a programmable soft-start function that directly controls output voltage slew rates at startup which limits inrush current, minimizes overshoot and facilitates supply sequencing.

Applications

Industrial Power Distribution
12V and 42V Automotive and Heavy Equipment
High Voltage Single Board Systems
Distributed Power Systems
Avionics
Telecom Power

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 6

1ku List Price Starting From $3.77

Technical Documents 4

LT3724: High Voltage, Current Mode Switching Regulator Controller Data Sheet 03/09/2011

R388 Reliability Data 03/26/2018

DC736A - Demo Manual 10/03/2012

Versatile Controller Simplifies High Voltage DC/DC Converter Designs 09/01/2005

Reference Materials 1

Versatile and Rugged DC/DC Controller for Step-Down, Step-Up, Inverting and SEPIC Topologies 04/27/2005

Design Resources 6

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
LT3724EFE#PBF	16-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3724EFE#TRPBF	16-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3724IFE#PBF	16-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3724IFE#TRPBF	16-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3724MPFE#PBF	16-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3724MPFE#TRPBF	16-Lead TSSOP w/ EP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LT3724EFE#PBF
Pin/Package Drawing
16-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT3724EFE#TRPBF
Pin/Package Drawing
16-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT3724IFE#PBF
Pin/Package Drawing
16-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT3724IFE#TRPBF
Pin/Package Drawing
16-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT3724MPFE#PBF
Pin/Package Drawing
16-Lead TSSOP w/ EP
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT3724MPFE#TRPBF
Pin/Package Drawing
16-Lead TSSOP 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

Apr 6, 2022

- 22_0068

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

LT3724EFE#PBF

PRODUCTION

LT3724EFE#TRPBF

PRODUCTION

LT3724IFE#PBF

PRODUCTION

LT3724IFE#TRPBF

PRODUCTION

LT3724MPFE#PBF

PRODUCTION

LT3724MPFE#TRPBF

PRODUCTION

pdf

PCN22_0068_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Filter by Model

Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

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

LT3724EFE#PBF

PRODUCTION

LT3724EFE#TRPBF

PRODUCTION

LT3724IFE#PBF

PRODUCTION

LT3724IFE#TRPBF

PRODUCTION

LT3724MPFE#PBF

PRODUCTION

LT3724MPFE#TRPBF

PRODUCTION

pdf

PCN22_0068_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Companion Parts 4

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Surge Stopper, Overvoltage, and Overcurrent Protection1
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DC736A

LT3724EFE | High Voltage Step-Down Controller, 30V to 60VIN, 24VOUT @ 3A

DC736A

LT3724EFE | High Voltage Step-Down Controller, 30V to 60VIN, 24VOUT @ 3A

Buy Now View Details

Product Detail

DC736A: Demo Board for the LT3724 High Voltage, Current Mode Switching Regulator Controller.

Resources

PDF

DC736A - Schematic

74.00K

PDF

DC736A - Demo Manual

184.00K

ZIP

DC736A - Design Files

863.00K

DC736A

LT3724EFE | High Voltage Step-Down Controller, 30V to 60VIN, 24VOUT @ 3A

LTspice 2

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.