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  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Internal Power Switch Buck Regulators
  6. LTC7150S

Data Sheet Rev. B
PDF
JP
User Guide
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Alternative Parts

LTC3613
LTC3613

24V, 15A Monolithic Step Down Regulator with Differential Output Sensing

Overview

Features and Benefits

  • AEC-Q100 Qualified for Automotive Applications
  • Silent Switcher®2 Architecture for Low EMI
  • VIN Range: 3.1V to 20V
  • VOUT Range: 0.6V to 5.5V
  • Differential VOUT Remote Sense
  • Adjustable Frequency: 400kHz to 3MHz
  • PolyPhase® Operation: Up to 12 Phases
  • Output Tracking and Soft-Start
  • Reference Accuracy: 0.6V ±1% Over Temperature
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Accurate 1.2V Run Pin Threshold
  • Supports Forced Continuous/Discontinuous Modes
  • 42-Lead 6mm × 5mm × 1.3mm BGA Package

Product Details

The LTC7150S is a high efficiency monolithic synchronous buck regulator capable of delivering 20A to the load. It uses a phase lockable controlled on-time constant frequency, current mode architecture. PolyPhase operation allows multiple LTC7150S regulators to run out-of-phase, which reduces the amount of input and output capacitors required. The operating supply voltage range is from 3.1V to 20V.

The operating frequency is programmable from 400kHz to 3MHz with an external resistor. The high frequency capability allows the use of physically smaller inductor and capacitor sizes. For switching noise sensitive applications, the LTC7150S can be externally synchronized from 400kHz to 3MHz. The PHMODE pin allows the user control of the phase of the outgoing clock signal. The unique constant frequency/controlled on-time architecture is ideal for high step-down ratio applications that operate at high frequencies while demanding fast transient response. The LTC7150S uses second generation Silent Switcher technology including integrated bypass capacitors to deliver a highly efficient solution at high frequencies with excellent EMI performance.

Applications

  • Server Power Applications
  • Distributed Power Systems
  • Point of Load Supply for ASIC, FPGA, DSP, µP, etc.

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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

  • View All (11)
  • Data Sheet (1)
  • Reliability Data (1)
  • User Guide (1)
  • Webcast (1)
  • Book & eBook (1)
  • Solutions Bulletin & Brochure (1)
  • Design Note (1)
  • Technical Article (4)
    • Document Type
    Technical Article

    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

    LTC7150S Demo Circuit- High Efficiency Synchronous Buck Regulator (3.1-20V to 1.2V @ 20A)

    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

    LTC7150S Project - Demo Board DC2411A 400kHz

    Reference Designs (2)

    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
    LTC7150SEY#PBF Material Declaration Reliability Data 42-Lead BGA (6mm x 5mm x 1.3mm)
    LTC7150SIY#PBF Material Declaration Reliability Data 42-Lead BGA (6mm x 5mm x 1.3mm)
    LTC7150SJY-4#PBF Material Declaration Reliability Data 42-Lead BGA (6mm x 5mm x 1.3mm)
    LTC7150SJY-4#WPBF Material Declaration Reliability Data 42-Lead BGA (6mm x 5mm x 1.3mm)
    Wafer Fabrication Data R564 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
    • LTC7150SEY#PBF Production
    • LTC7150SIY#PBF Production
    • LTC7150SJY-4#PBF Production
    • LTC7150SJY-4#WPBF Production

    Support & Discussions

    LTC7150S Discussions

    RE: LTC7150S Dual Phase sync problem
    All LTC7150S Discussions
    LTC7150S Contact ADI Technical Support »
    LTC7150S Ask your question »
    LTC7150S Contact ADI Technical Support » LTC7150S Ask your question »

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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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