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  6. MAX16956

Data Sheet Rev. 6
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Overview

Features and Benefits

  • Integration and High-Switching Frequency Saves Space
    • DC-DC Converter Up to 300mA Capability
    • Fixed 5V/3.3V or Programmable Output-Voltage Options (1V to 15V)
    • Current-Mode-Control Architecture
    • 2.1MHz Operating Frequency
    • Fixed 5.4ms Internal Soft-Start
  • Spread-Spectrum Frequency Modulation Reduces EMI Emissions
  • Low IQ Enables Designers to Meet Stringent OEM Module Power-Consumption Requirements
    • 1.1µA Quiescent Current in Standby Mode (Fixed-Output-Voltage Versions Only)
  • Wide Input Voltage Range Supports Automotive Applications
    • Operating VIN Range: 3.5V to 36V (42V Tolerant)
    • 97% (Max) Duty-Cycle Operation with Low Dropout
  • Robust Performance Supports Wide Range of Automotive Applications
    • Short-Circuit, Thermal Protections
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

Product Details

The MAX16956 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver up to 300mA with input voltages from 3.5V to 36V, while using only 1.1µA quiescent current at no load (fixed-output versions). Voltage quality can be monitored by observing the active-low RESET signal. The device can operate near dropout by running at 97% duty cycle, making it ideal for automotive applications under cold-crank.

The device offers fixed-output voltages of 5V and 3.3V, as well as an adjustable version. The adjustable version allows the user to program the output voltage between 1V and 15V by using a resistor-divider. Frequency is fixed at 2.1MHz, which allows for small external components, reduced output ripple, and minimized AM radio interference. The device offers both forced-PWM and skip modes of operation, with ultra-low quiescent current of 1.1µA in skip mode. The device can be ordered with spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the switching frequency.

The MAX16956 is available in a small (3mm × 3mm) 10-pin µMAX® package and operates across the full automotive temperature range of -40°C to +125°C. The device is AEC-Q100 qualified.

Applications

  • Automotive Body ECUs
  • Distributed DC Power Systems
  • Point-of-Load Applications

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Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
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    Tools & Simulations

    EE-Sim® Power Tools

    The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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    SIMPLIS Models

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    MAX16956 SIMPLIS Schematic

    MAX16956 SIMPLIS Schematic

    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
    MAX16956AUBA+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBA+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBA/V+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBA/V+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBB+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBB+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBB/V+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBB/V+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBC+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBC+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBC/V+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBC/V+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBD/V+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBD/V+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBE/V+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBE/V+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBF/V+ Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    MAX16956AUBF/V+T Material Declaration Reliability Data 10-MINI_SO_EP-N/A
    Wafer Fabrication Data MAX16956 Reliability Data

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