LT3790

PRODUCTION

60V Synchronous 4-Switch Buck-Boost Controller

Data Sheet (Rev. B) Product Selection Table
Viewing:

Overview

  • 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
  • Synchronous Switching: Up to 98.5% Efficiency
  • Wide VIN Range: 4.7V to 60V
  • 2% Output Voltage Accuracy: 1.2V ≤ VOUT < 60V
  • 6% Output Current Accuracy: 0V ≤ VOUT < 60V
  • Input and Output Current Regulation with Current Monitor Outputs
  • No Top FET Refresh in Buck or Boost
  • VOUT Disconnected from VIN During Shutdown
  • C/10 Charge Termination and Output Shorted Flags
  • Capable of 100W or Greater per IC
  • Easy Parallel Capability to Extend Output Power
  • 38-Lead TSSOP with Exposed Pad
LT3790
60V Synchronous 4-Switch Buck-Boost Controller
LT3790 Application Circuit LT3790 Pin Configuration LT3790 Performance Graph
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

User Guide 1

Technical Articles 2

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts Product Life Cycle Description
Analog to Digital Converters (ADCs) 1
LTC2946
RECOMMENDED FOR NEW DESIGNS Wide Range I2C Power, Charge and Energy Monitor
Hot Swap Controllers 1
LTC4364
RECOMMENDED FOR NEW DESIGNS Surge Stopper with Ideal Diode
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3790
LTspice

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.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
schematic 7
DC2123B

LT3790 Demo Board | Synchronous Buck-Boost, 8V ≤ VIN ≤ 56V, VOUT = 24V at up to 5A

Buy Now View Details

Product Details

The DC2123B is a 60V four-switch synchronous buck-boost controller that demonstrates the high power capability of the LT3790. The output is 24V and the maximum output current is 5A. The switching frequency is 200kHz and efficiency is as high as 98% for a 24V input.


The LT3790 is capable of high power operation. DC2123B can be altered for increased output power with higher minimum input voltage. If VIN remains always above 20V, IOUT can be increased to 12A+ (for 290W output) by changing RS2 to 4mΩ.
DC2123B
LT3790 Demo Board | Synchronous Buck-Boost, 8V ≤ VIN ≤ 56V, VOUT = 24V at up to 5A
DC2123B Demo Board DC2123B Demo Board DC2123B Demo Board DC2123B Demo Board DC2123B Demo Board DC2123B Demo Board DC2123B - Schematic

Latest Discussions

3 Years Ago
LT3790: output voltage drop
3 Years Ago
EN/UVLO in LT3790 Parallel Buck-Boost Regulator
4 Years Ago
LT3790
View related discussion on EngineerZone®

Recently Viewed