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Overview

Features and Benefits

  • Complete Step-Down Switch Mode Power Supply
  • Constant-Voltage Constant-Current Operation
  • Selectable Output Current Up to 5A
  • Parallelable for Increased Output Current, Even from Different Voltage Sources
  • Wide Input Voltage Range: 6V to 36V
  • 1.2V to 24V Output Voltage
  • Selectable Switching Frequency: 100kHz to 1MHz
  • SnPb or RoHS Compliant Finish
  • Programmable Soft-Start
  • (11.25mm × 15mm × 2.82mm) LGA and (11.25mm × 15mm × 3.42mm BGA Packages

Product Details

The LTM8026 is a 36VIN, 5A constant-voltage, constant-current (CVCC) step-down μModule® (power module) regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8026 supports an output voltage range of 1.2V to 24V. CVCC operation allows the LTM8026 to accurately regulate its output current up to 5A over the entire output range. The output current can be set by a control voltage, a single resistor or a thermistor. Only resistors to set the output voltage and frequency and the bulk input and output filter capacitors are needed to finish the design.

The LTM8026 is packaged in a thermally-enhanced, compact (11.25mm × 15mm) overmolded land grid array (LGA) and ball grid array (BGA) packages suitable for automated assembly by standard surface mount equipment. The LTM8026 is available in SnPb (BGA) or RoHS compliant terminal finish.

Applications

  • SuperCap Charging
  • General Purpose Industrial
  • Extreme Short-Circuit Protection or Accurate Output Current Limit
  • μController-Based Battery Charging
  • High Power LED Drive
  • Multiple Input, Single Output Voltage Conversion

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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.

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Documentation & Resources

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    Tools & Simulations

    LTspice

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    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

    LTM8026 Demo Circuit - Two 2.5V Series Supercapacitor Charger (7-36V to 5V @ 5.6A)
    LTM8026 Demo Circuit - CVCC Step-Down µModule Regulator (6-36V to 2.5V @ 5A)

    Models for the following parts are available in LTspice:

    LTM8026

    Product Recommendations

    LTM8026 Companion Parts

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    Design Resources

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    LTM8026 Material Declaration
    Quality And Reliability
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