Features and Benefits

  • Multiple Functions for Small Size
    • Dual Synchronous Buck Converters up to 3A
      • Fixed Output Voltage from 0.8V to 3.8V
      • Resistor-Adjustable Output Voltage
    • 3.0V to 5.5V Operating Supply Voltage
    • 2.2MHz Operation
    • Individual EN_ Inputs and RESET_ Outputs I
    • Input Supply Monitoring PV_OV Output
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • ±1.5% Over/Undervoltage Monitoring Accuracy
    • Good Load-Transient Performance
  • Diagnostics and Redundant Circuits
    • ASIL-C Compliant
    • Redundant Reference
    • Fail Safe on Open Pins
    • Shorted-Pin Detection on RESET1/RESET2
    • Input Overvoltage Detection
  • Robust for the Automotive Environment
    • Current-Mode, Forced-PWM, and Skip Operation
    • Overtemperature and Short-Circuit Protection
    • 4mm x 4mm, 24-Pin TQFN Package
    • -40°C to +125°C Automotive Temperature Range

Product Details

The MAX20415 is a high-efficiency, dual-output, low-voltage DC-DC converter. The synchronous step-down converters operate from a 3.0V to 5.5V input voltage range and provide a 0.8V to 3.8V output voltage range at up to 3A. The buck converters achieve ±1.5% output error over load, line, and temperature range.

The IC features a 2.2MHz fixed-frequency pulse-width modulation (PWM) mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for use of all-ceramic capacitors, minimizing the total solution footprint. Programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and make the layout a much simpler task with respect to discrete solutions.

The IC is offered with factory-preset or resistor-adjustable output voltages. Other features include soft-start, over-current protection, pin diagnostics, and overtemperature protections. The MAX20415 is available in a lead(Pb)-free, 24-pin TQFN package (see the Ordering Information/Selector Guide for available options).


  • Automotive ADAS Applications
  • Short-Range Radar
  • Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.

    Product Lifecycle icon-recommended Production

    At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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    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.