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  6. LTC3529

Data Sheet
JP
User Guides
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Overview

Features and Benefits

  • Compact Solution for 5V USB On-The-Go VBUS Power
  • 5V at 500mA from Single Li-Ion Cell
  • Automatic Fault Detection
  • High Efficiency: Up to 95%
  • VIN Range: 1.8V to 5.25V
  • Fixed 5V Output
  • Short Circuit Protection
  • 1.5MHz Low Noise, Fixed Frequency PWM
  • Inrush Current Limiting and Internal Soft-Start
  • Output Disconnect
  • <1μA Quiescent Current in Shutdown
  • VIN > VOUT Operation
  • 8-Lead, 2mm × 3mm DFN Package

Product Details

The LTC3529 is a 5V output, synchronous, fixed frequency step-up DC/DC converter optimized for USB On-The-Go (OTG) hosting applications. This compact USB OTG 5V VBUS converter features a 1.5MHz switching frequency, internal compensation and a tiny 2mm × 3mm DFN package. The LTC3529 can operate from input voltages as low as 1.8V.

USB OTG-specific features include a fault fl ag with 22ms deglitching to indicate when the bus is overloaded, output disconnect and short circuit protection. Following a fault, the LTC3529 can be programmed to either latch-off or restart after a time-out duration.

Additional features include a <1μA shutdown mode, soft-start, inrush current limiting and thermal overload protection. Anti-ring circuitry reduces EMI during low power operation. The LTC3529 is offered in an 8-Lead 2mm × 3mm × 0.75mm DFN package.

Applications

  • Personal Media Players
  • Digital Video Cameras
  • Digital Multimedia Broadcast Tuners
  • Digital Cameras
  • Smart Phones

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

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Press Releases (1)
  • Technical Articles (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

    LTC3529 Demo Circuit - 1.5A, 1.5MHz Step-Up DC/DC Converter (1.8-5V to 5V @ 500mA)

    Models for the following parts are available in LTspice:

    LTC3529

    Product Recommendations

    LTC3529 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
    LTC3529EDCB#TRMPBF Material Declaration Reliability Data 8-Lead DFN (2mm x 3mm w/ EP)
    LTC3529EDCB#TRPBF Material Declaration Reliability Data 8-Lead DFN (2mm x 3mm w/ EP)
    Wafer Fabrication Data R415 Reliability Data

    Support & Discussions

    LTC3529 Contact ADI Technical Support »
    LTC3529 Ask your question »
    LTC3529 Contact ADI Technical Support » LTC3529 Ask your question »

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