Data Sheet
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Overview

Features and Benefits


  • Complete Switch Mode Power Supply
  • Wide Input Voltage Range: 3V to 36V
  • 500mA Output Current
  • 0.8V to 5V Output Voltage
  • Fixed 1.1MHz Switching Frequency
  • Current Mode Control
  • (e4) RoHS Compliant Package with Gold Pad Finish
  • Programmable Soft-Start
  • Tiny, Low Profile (11.25mm × 6.25mm × 2.82mm) Surface Mount LGA Package

Product Details

The LTM8021 is a 36VIN 500mA, step-down DC/DC μModule® (power module). Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3V to 36V, the LTM8021 supports an output voltage range of 0.8V to 5V, set by a single resistor. Only an output and bulk input capacitor are needed to finish the design.

The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. A built-in soft-start timer is adjustable with just a resistor and capacitor.

The LTM8021 is packaged in a thermally enhanced, compact (11.25mm × 6.25mm) and low profile (2.82mm) overmolded Land Grid Array (LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8021 is RoHS compliant.

Applications

  • Automotive Battery Regulation
  • Power for Portable Products
  • Distributed Supply Regulation
  • Industrial Supplies
  • Wall Transformer Regulation

Product Categories

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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 (2)
  • User Guides (1)
  • Design Notes (1)
  • Product Selector Card (4)
  • Informational (1)
  • Videos (1)
  • Press Releases (1)
  • Webcasts (1)
  • Technical Articles (1)
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    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

    LTM8021 Demo Circuit - 36Vin, 500mA, Step-down uModule (7.5-36V to 5V @ 500mA)

    Models for the following parts are available in LTspice:

    LTM8021

    Reference Designs (2)

    Product Recommendations

    LTM8021 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.

    LTM8021 Material Declaration
    Quality And Reliability
    Symbols and Footprints

    PCN-PDN Information

    Select Model
    • LTM8021EV#PBF Production
    • LTM8021IV#PBF Production

    Support & Discussions

    LTM8021 Discussions

    RE: Question about LTM8021 soft start
    2 week(s) ago in Power Management
    RE: LTpowerCAD II v2.7.1 Excel Design Tool does not open
    All LTM8021 Discussions
    LTM8021 Contact ADI Technical Support »
    LTM8021 Ask your question »
    LTM8021 Contact ADI Technical Support » LTM8021 Ask your question »

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