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Automotive Single 16A/12A Step-Down Converter

High-Efficiency, Synchronous Step-Down 12A/16A Converters with a 3V to 5.5V Input Voltage

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主要特征

应用/用途

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参量

主要特征

  • High-Efficiency DC-DC Converter
  • Up to 16A Peak Output Current
    • MAX20499C: 16A
    • MAX20499D: 12A
  • Differential Remote Voltage Sensing
  • 3.0V to 5.5V Operating Supply Voltage
  • I2C Controlled Output Voltage: 0.5V to 1.275V in 6.25mV 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 4mm 17-Pin Side-Wettable FC2QFN
  • -40°C to +125°C Grade 1 Automotive Temperature Range
  • 应用/用途

    • 汽车娱乐系统
    • SoC核心电源

    描述

    The MAX20499C/MAX20499D is a high-efficiency, synchronous step-down converter that operates with a 3.0V to 5.5V input voltage range and supplies a 0.5V to 1.275V output voltage range. The wide input/output voltage range and the ability to provide up to 16A peak output current make this device ideal for on-board point-of-load and post-regulation applications. The MAX20499C/MAX20499D achieves ±1.5% output error over load, line, and temperature ranges.

    The MAX20499C/MAX20499D 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 MAX20499C/MAX20499D is offered with factory-preset output voltage. The I2C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft start, overcurrent, and overtemperature protections.

    支持和培训

    在Maxim的知识库中搜索技术问题的答案

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    Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心