MAX20499

Automotive Core Power Supply 5V, 8A/12A Step-Down Converter

High-Efficiency, Synchronous Step-Down 8A/12A Converters with a 3V to 5.5V Input Voltage


Please check latest availability status for a specific part variant.

Description

The MAX20499 is a family of high-efficiency, synchronous step-down converters that operate with a 3.0V to 5.5V input voltage range and supply a 0.5V to 1.275V output voltage range. The wide input/output voltage range and the ability to provide up to 12A peak output current make this device family ideal for on-board point-of-load and post-regulation applications. The MAX20499 achieves ±1.5% output error over load, line, and temperature ranges.

The MAX20499 features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response. The 2.2MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The spread-spectrum frequency modulation option minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and make layout simpler than discrete solutions.

The MAX20499 is offered with factory-preset output voltage. See the Selector Guide for options. The I2C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, along with overcurrent and overtemperature protections.

Key Features

  • High-Efficiency DC-DC Converter
  • Up to 12A peak output current:
    • MAX20499A: 8A
    • MAX20499B: 12A
  • Differential Remote Voltage Sensing
  • 3.0V to 5.5V Operating Supply Voltage
  • I2C Controlled Output Voltage: 0.5V to 1.275V in6.25mV Steps
  • Excellent Load-Transient Performance
  • Programmable Compensation
  • 2.2MHz or 1.1MHz Operation
  • ±1.5% Output Voltage Accuracy
  • Active-Low RESET Output
  • Current Mode, Forced-PWM Operation
  • Overtemperature and Short-Circuit Protection
  • 3.5mm x 3.75mm 17-Pin Side-Wettable FC2QFN
  • -40°C to +125°C Grade 1 Automotive TemperatureRange
  • Applications/Uses

    • Automotive Entertainment Systems
    • SoC Core Power

    See parametric specs for Step-Down Switching Regulators (404)


    Part NumberVIN
    (V)
    VIN
    (V)
    VOUT1
    (V)
    IOUT1
    (A)
    Design ToolsPackage/PinsBudgetary
    Price
    minmaxmaxmaxSee Notes
    MAX20499 NEW!35.51.27512EE-Sim
    FC2QFN/17
    $1.34 @1

    Pricing Notes:
    This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    MAX20499AEKIT: Evaluation Kit for the MAX20499

    Tools & Models

  • EE-Sim: Design & Simulate MAX20499
  • Request Reliability Report for: MAX20499 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
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