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  2. Power Management
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  4. µModule Buck-Boost Regulators
  5. LTM4609

Data Sheet Rev. G
JP
User Guides
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Overview

Features and Benefits

  • Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
  • Wide VIN Range: 4.5V to 36V
  • Wide VOUT Range: 0.8V to 34V
  • IOUT: 4A DC (10A DC in Buck Mode)
  • Up to 98% Efficiency
  • Current Mode Control
  • Power Good Output Signal
  • Phase-Lockable Fixed Frequency: 200kHz to 400kHz
  • Ultrafast Transient Response
  • Current Foldback Protection
  • Output Overvoltage Protection
  • Small Surface Mount Footprint, Low Profile
    (15mm × 15mm × 2.82mm) LGA and
    (15mm × 15mm × 3.42mm) BGA Packages
  • SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish

Product Details

The LTM4609 is a high efficiency switching mode buckboost power supply. Included in the package are the switching controller, power FETs and support components. Operating over an input voltage range of 4.5V to 36V, the LTM4609 supports an output voltage range of 0.8V to 34V, set by a resistor. This high efficiency design delivers up to 4A continuous current in boost mode (10A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to finish the design.

The low profile package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The high switching frequency and current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The LTM4609 can be frequency synchronized with an external clock to reduce undesirable frequency harmonics.

Fault protection features include overvoltage and foldback current protection. The DC/DC μModule® regulator is offered in small 15mm × 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm BGA packages. The LTM4609 is available with SnPb (BGA) or RoHS compliant terminal finish.

APPLICATIONS

  • Telecom, Servers and Networking Equipment
  • Industrial and Automotive Equipment
  • High Power Battery-Operated Devices

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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

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Product Selector Card (3)
  • Informational (1)
  • Application Notes (1)
  • Press Releases (2)
  • Technical Articles (2)
  • Webcasts (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

    LTM4609 Demo Circuit - High Efficiency Buck-Boost µModule Supply (10-36V to 30V @ 3A)

    Models for the following parts are available in LTspice:

    LTM4609

    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

    LTM4609 Project - High Efficiency Buck-Boost µModule Supply (10-36V to 30V @ 5A)
    LTM4609 Project - High Efficiency Buck-Boost µModule Supply (5-32V to 12V @ 8A)

    Design tools for the following parts are available in LTpowerCAD:

    LTM4609

    Product Recommendations

    LTM4609 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.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
    LTM4609EV#PBF Material Declaration Reliability Data 141-Lead LGA (15mm x 15mm x 2.82mm)
    LTM4609EY#PBF Material Declaration Reliability Data 141-Lead BGA (15mm x 15mm x 3.42mm)
    LTM4609IV#PBF Material Declaration Reliability Data 141-Lead LGA (15mm x 15mm x 2.82mm)
    LTM4609IY Material Declaration Reliability Data 141-Lead BGA (15mm x 15mm x 3.42mm)
    LTM4609IY#PBF Material Declaration Reliability Data 141-Lead BGA (15mm x 15mm x 3.42mm)
    LTM4609MPV#PBF Material Declaration Reliability Data 141-Lead LGA (15mm x 15mm x 2.82mm)
    LTM4609MPY Material Declaration Reliability Data 141-Lead BGA (15mm x 15mm x 3.42mm)
    LTM4609MPY#PBF Material Declaration Reliability Data 141-Lead BGA (15mm x 15mm x 3.42mm)
    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
    • LTM4609EV#PBF Production
    • LTM4609EY#PBF Production
    • LTM4609IV#PBF Production
    • LTM4609IY Production
    • LTM4609IY#PBF Production
    • LTM4609MPV#PBF Production
    • LTM4609MPY Production
    • LTM4609MPY#PBF Production

    Support & Discussions

    LTM4609 Contact ADI Technical Support »
    LTM4609 Ask your question »
    LTM4609 Contact ADI Technical Support » LTM4609 Ask your question »

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