MAX5090A

2A、76V、高效MAXPower、降压型DC-DC转换器

专用于汽车环境,可承受较强干扰


点击查看特定型号的库存状况。

说明

MAX5090A/B/C是简单易用的高效率、高压、降压型DC-DC转换器,能够工作在高达76V的输入电压,空载时仅消耗310µA的静态电流。脉宽调制(PWM)转换器重载时工作在固定的127kHz开关频率,轻载时可自动切换到跳脉冲模式,以实现低静态流和高效率。MAX5090包括内部频率补偿,简化了电路设计。器件还可以同步到外部系统时钟,用于噪声敏感系统。MAX5090内部采用低导通电阻、高电压DMOS晶体管,可获得高效率、降低系统成本。此器件包括欠压锁定、逐周期限流、“打嗝”式输出短路保护及热关断功能。

MAX5090可提供高达2A的输出电流。提供外部关断模式,具有19µA (典型)的关断电流。MAX5090A/MAX5090B分别提供固定的3.3V和5V输出电压;MAX5090C提供1.265V至11V的可调输出电压。

MAX5090采用节省空间的16引脚薄型QFN封装(5mm x 5mm),工作在汽车级(-40°C至+125°C)温度范围。
MAX5090、MAX5090A、MAX5090B、MAX5090C:典型工作电路 MAX5090、MAX5090A、MAX5090B、MAX5090C:典型工作电路 放大+

关键特性

  • 6.5V至76V的宽输入电压范围
  • 提供固定(3.3V、5V)或可调输出电压(1.265V至11V)
  • 2A输出电流
  • 效率高达92%
  • 内置0.26Ω高边DMOS FET
  • 空载时,静态电流为310µA
  • 19µA的关断电流
  • 内部频率补偿
  • 固定127kHz开关频率
  • 外部频率同步
  • 热关断及短路电流限制
  • -40°C至+125°C汽车级温度范围
  • 16引脚(5mm x 5mm)薄型QFN封装
  • +70°C时可耗散2.67W功率

应用

  • 分布式电源
  • 工业

MAX5090EVKIT: MAX5090评估板

质量和环境数据

申请可靠性报告: MAX5090A 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

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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相关资料


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