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  5. LTM4648

Data Sheet Rev. A
JP Rev. A
User Guides
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Overview

Features and Benefits

  • 10A DC Output Current
  • Input Voltage Range: 2.375V to 5.5V
  • Output Voltage Range: 0.6V to 5V
  • No Heat Sink or Current Derating Up to 85°C Ambient Temperature
  • ±1.5% Maximum Total DC Output Error
  • Multiphase Operation with Current Sharing
  • Remote Sense Amplifier
  • Built-In Temperature Monitor
  • Selectable Pulse-Skipping Mode/Burst Mode® Operation for High Efficiency at Light Load
  • Soft-Start/Voltage Tracking
  • Protection: Output Overvoltage and Overcurrent Foldback
  • See LTM4649 for Up to 16VIN Operation
  • 9mm × 15mm × 4.92mm BGA Package

Product Details

The LTM4648 is a 10A low VIN step-down DC/DC μModule® (micromodule) regulator. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.375V to 5.5V, the LTM4648 supports an output voltage range of 0.6V to 5V, set by a single external resistor. This high efficiency design delivers up to 10A continuous current. Only bulk input and output capacitors are needed.

High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, programmable multiphase operation and output voltage tracking for supply rail sequencing.

Fault protection features include overvoltage protection, overcurrent protection and thermal shutdown. The LTM4648 is offered in a small 9mm × 15mm × 4.92mm BGA package available with SnPb or RoHS compliant terminal finish. For up to 16VIN operation, see the LTM4649.

APPLICATIONS

  • Telecom, Networking and Industrial Equipment
  • Point of Load Regulation

Product Categories

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Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Documentation & Resources

  • View All (6)
  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Product Selector Card (1)
  • Informational (1)
  • Press Releases (1)
    • Document Type

    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

    LTspice Simulations

    LTM4648 Demo Circuit - 10A Buck µModule Regulator (2.4-5.5V to 1.5V @ 10A)

    Models for the following parts are available in LTspice:

    LTM4648

    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

    LTpowerCAD Project Files

    LTM4648 Project - Low Vin Step-Down μModule Regulator (2.4-5.5V to 1.5V @ 10A)

    Design tools for the following parts are available in LTpowerCAD:

    LTM4648

    Product Recommendations

    LTM4648 Companion Parts

    Recommended Related Parts

    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.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LTM4648EY#PBF Material Declaration Reliability Data 68-Lead BGA (15mm x 9mm x 4.92mm)
    LTM4648IY Material Declaration Reliability Data 68-Lead BGA (15mm x 9mm x 4.92mm)
    LTM4648IY#PBF Material Declaration Reliability Data 68-Lead BGA (15mm x 9mm x 4.92mm)
    Wafer Fabrication Data R504 Reliability Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • LTM4648EY#PBF Production
    • LTM4648IY Production
    • LTM4648IY#PBF Production

    Support & Discussions

    LTM4648 Discussions

    RE: Question on how to measure temperature using TEMP pin on LTM4648
    All LTM4648 Discussions
    LTM4648 Contact ADI Technical Support »
    LTM4648 Ask your question »
    LTM4648 Contact ADI Technical Support » LTM4648 Ask your question »

    Sample & Buy


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    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.

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