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  2. Power Management
  3. Switching Regulators
  4. Buck-Boost Regulators
  5. External Power Switch Buck-Boost Controllers
  6. MAX20048

Data Sheet Rev. 3
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EE-Sim Design & Simulation
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Overview

Features and Benefits

  • Meets Stringent Automotive Quality and Reliability Requirements
    • Operating VIN Range: 2V to 36V Allows Operation in Cold-Crank Conditions
    • Tolerates Input Transients to 40V
    • EN Pin Compatible from +3.3V to +40V
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified
  • Efficient Solution in a Small Solutions Size
    • Skip Mode for Efficient Low Power Operation
    • Fixed 5V Output Voltage and Adjustable 4V to 25V
    • High Switching Frequency Allows Use of Small External Components
    • Small 4mm x 4mm 24-Pin SWTQFN Package
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements
    • 55µA Quiescent Current When in Stand-By Mode
    • 10µA (max) Quiescent Current in Shutdown
  • EMI Mitigation to meet CISPR25 Class 5 Requirements
    • 220kHz to 2.2MHz Operating Frequency
    • Fixed-Frequency PWM Mode
    • External Frequency Synchronization or SYNC OUT Capability (Selectable by OTP Option)
    • Spread Spectrum Can Be Enabled or Disabled for the IC by OTP Option

Product Details

The MAX20048 is a current‐mode buck‐boost controller. The device operates with input voltages from 4.5V to 36V while using only 55µA quiescent current at no load. Once the start‐up conditions are satisfied, the device can operate over an extended input voltage range of 2V to 36V. The switching frequency is resistor programmable from 220kHz to 2.2MHz and can be synchronized to an external clock.

The device output voltage is available as 5V fixed or adjustable from 4V to 25V. The wide input voltage range, along with its ability to maintain constant output voltage during battery transients, makes the device ideal for automotive applications. In light load applications, a logic input (FSYNC) allows the devices to operate either in skip mode for reduced current consumption, or fixed‐frequency, forced‐ PWM mode to eliminate frequency variation and help minimize EMI. Protection features include cycle‐by‐cycle current limit, and thermal shutdown with automatic recovery.

The MAX20048 is available in a small 4mm x 4mm 24-pin TQFN-EP SW package.

Applications

  • Instrument Cluster
  • Point of Load Power Supply
  • Remote Display
  • Start-Stop Systems
  • USB Power

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Evaluation Kits (1)

Documentation & Resources

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  • Data Sheet (1)
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    Tools & Simulations

    EE-Sim® Power Tools

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    LTspice

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    Reference Designs (1)

    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
    MAX20048ATGA/VY+ Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGA/VY+T Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGB/VY+ Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGB/VY+T Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGC/VY+ Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGC/VY+T Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGD/VY+ Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    MAX20048ATGD/VY+T Material Declaration Reliability Data 24-LFCSP_SS-4X4X0.75
    Wafer Fabrication Data

    Support & Discussions

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