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MAX20499

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

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概述

说明

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.

关键特性

  • 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

    • 应用

    • 汽车娱乐系统
    • null

    参数规格

    请查看具体的参数规格 Step-Down Switching Regulators (405)


    Part NumberVIN
    (V)    		VIN
    (V)    		VOUT1
    (V)    		Preset VOUT
    (V)    		IOUT1
    (A)    		DC-DC OutputsDesign ToolsPackage/PinsBudgetary
    Price
    minmaxmaxmaxSee Notes
    MAX20499 NEW!35.51.2750.25-1.27581EE-Sim
    FC2QFN/17
    		$1.52 @1k

    Pricing Notes:
    价格仅供参考，用于同类产品的比较。所提供报价为美元，需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题，请参考：价格与供货网站或与指定代理商联系。

    设计资源


    MAX20499AEKIT: Evaluation Kit for the MAX20499

    质量和环境数据

    申请可靠性报告: MAX20499 
    无铅封装的锡（Sn）晶须报告

    工具和模型

  • EE-Sim: MAX20499 设计和仿真

    • 质量与环境

    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    备注： 通过技术手段对故障率进行汇总，并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
    环境管理体系 >

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    工具和模型

    参考设计

    类型 编号 标题
    评估板10552MAX20499AEKIT Evaluation Kit for the MAX20499