Alternative Parts

Overview

Features and Benefits

  • Complete Standalone Dual Output Power Supply
  • Dual 13A or Single 26A Output
  • Wide Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.6V to 2.5V
  • ±1.5% Maximum Total DC Output Error
  • Multiphase Current Sharing with Multiple LTM4620s Up to 100A
  • Differential Remote Sense Amplifier
  • Current Mode Control/Fast Transient Response
  • Adjustable Switching Frequency
  • Overcurrent Foldback Protection
  • Frequency Synchronization
  • Internal Temperature Monitor
  • Output Overvoltage Protection
  • SnPb or RoHS Compliant Finish
  • Thermally Enhanced (15mm × 15mm × 4.41mm) LGA Package and (15mm × 15mm × 5.01mm) BGA Package

Product Details

The LTM4620 is a complete dual 13A output switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 16V, the LTM4620 supports two outputs each with an output voltage range of 0.6V to 2.5V, set by a single external resistor. Its high efficiency design delivers up to 13A continuous current for each output. Only a few input and output capacitors are needed.

The device supports frequency synchronization, multiphase operation, Burst Mode operation and output voltage tracking for supply rail sequencing and has an onboard temperature diode for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include overvoltage and overcurrent protection. The power module is offered in a proprietary space saving and thermally enhanced 15mm × 15mm × 4.41mm LGA package and 15mm × 15mm × 5.01mm BGA package, with integrated top-side heat sink. The LTM4620 is available with SnPb (BGA) or RoHS compliant terminal finish.

 


Vout Range Efficiency 12Vin, 1.2Vout
LTM4620 0.6V-2.5V 83%
LTM4620A 0.6V-5.3V 86%


Applications

  • Telecom and Networking Equipment
  • Storage and ATCA Cards
  • Industrial Equipment

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (4)

Documentation & Resources

  • View All (22)
  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (4)
  • Product Selector Card (3)
  • Informational (1)
  • Technical Articles (4)
  • Videos (5)
  • Design Notes (1)
  • Press Releases (1)
  • Webcasts (1)
  • Tools & Simulations

    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.

    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.

    LTspice

    Models for the following parts are available in LTspice:

    LTM4620
    LTM4620A

    LTpowerCAD

    LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

    To open the project file for this circuit:

    Step 1: Download and install LTpowerCAD on your computer.

    Step 2: Click on the link(s) in the section below to download part-specific project files.

    Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.

    LTPowerCAD

    Design tools for the following parts are available in LTpowerCAD:

    LTM4620
    LTM4620A

    Reference Designs (10)

    Product Recommendations

    LTM4620 Companion Parts

    Recommended Related Parts

    Recommended Suggested Oscillator

    Design Resources

    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.

    PCN-PDN Information

    Sample & Buy


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    Evaluation Boards

    Pricing displayed is based on 1-piece.

    Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.