MAX15003

三输出buck控制器,提供跟踪/排序功能

设计灵活的三通道控制器,每路可提供15A输出,具有排序和跟踪控制


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说明

MAX15003是一款三通道输出、脉宽调制(PWM)、降压型DC-DC控制器,具有采样/排序功能。该器件可工作在5.5V至23V或5V ±10%的输入电压范围。每个PWM控制器可提供低至0.6V的可调输出电压和高达15A的电流,并具有优异的负载和线路调整率。MAX15003非常适合用于高性能、小尺寸电源管理方案。

器件可提供同步跟踪、比例跟踪以及输出排序多种选择,可以根据系统要求改变上电/断电顺序。MAX15003的各个PWM模块采用电压模式控制方案,具有外部补偿,具有优异的噪声抑制能力,并可选择多种电感值和电容类型,提供了极大的设计灵活性。各个PWM模块工作在相同的固定开关频率,可编程范围为200kHz至2.2MHz,并可通过SYNC输入与外部时钟信号同步。120°错相工作时,各个转换器的工作频率高达2.2MHz,将输入电容纹波频率提高至6.6MHz,从而大大降低了RMS输入纹波电流和对输入旁路电寸的要求。

MAX15003内置输入欠压锁定,带有滞回、数字软启动/软停止功能,保证每个转换器无干扰地上电和断电。上电复位(/RESET)电路具有可调节超时周期,监测所有三路输出,当所有输出达到稳定电压时,向处理器输出/RESET信号。MAX15003的保护功能包括无损耗谷电流限制模式以及“打嗝式”输出短路保护。

MAX15003采用节省空间的7mm x 7mm、48引脚TQFN-EP封装,工作在-40°C至+125°C汽车级温度范围。有关MAX15003双路输出器件的详细信息,请参考MAX15002的数据资料。
MAX15003:功能框图 MAX15003:功能框图 放大+

关键特性

  • 5.5V至23V或5V ±10%输入电压范围
  • 三输出同步buck控制器
  • 可选择的同相或120°错相工作模式
  • 输出电压可调范围为0.6V至0.85VIN
  • 采用RSENSE实现无损谷电流限流模式或精确的谷电流检测
  • 外部补偿提供最大的灵活性
  • 数字软启动或软停止
  • 排序或同步/比例VOUT跟踪
  • 独立的PGOOD输出
  • /RESET,具有可编程超时周期
  • 200kHz至2.2MHz可编程开关频率
  • 外部频率同步
  • “打嗝式”输出短路保护
  • 节省空间的7mm x 7mm、48引脚TQFN封装

应用

  • 网络/服务器电源
  • PCI Express®主机总线适配器电源
  • 负载点DC-DC转换器

MAX15003EVKIT: MAX15003评估板

工具和模型

  • MAX15003 SPICE Macro Models
  • 申请可靠性报告: MAX15003 
    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 >
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