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MAX1774评估板

产品详情

主要特征

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Technical Docs

数据资料 MAX1774评估板 Dec 11, 2003

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主要特征

  • Input Voltages
    • +3.65V to +5.5V (AC Adapter, as configured)
    • +2.7V to +5.5V (Main Battery, as configured)
    • +0.9V to +3.2V (Backup Battery)
  • Output Voltages
    • +3.3V Output at 1.5A
    • +1.8V Output at 500mA
  • Outputs are Adjustable with Resistors
  • Internal MOSFET Switches (Core and Backup Converters)
  • 8µA (typ) IC Shutdown Current
  • Switching Frequency up to 1.25MHz
  • Surface-Mount Components
  • Fully Assembled and Tested

应用/用途

  • 手持式计算机
  • 网络浏览器
  • PDA
  • POS终端
  • 亚笔记本电脑

描述

The MAX1774 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a dual step-down switching converter with a backup converter circuit and low-voltage detectors. The circuit is configured for a main output voltage of 3.3V and a core output voltage of 1.8V. The main output provides up to 1.5A, and the core output provides up to 500mA of current.

Power for the circuit can be provided from a 3.65V to 5.5V DC source. The EV kit can be reconfigured for input voltages up to 28V. The core's input can be powered from the input source, or for higher input voltages, from the main output. The EV kit circuit includes battery monitoring, switchover, and backup, allowing automatic backup operation.

The MAX1774 EV kit demonstrates low quiescent current and high efficiency (up to 95%) for maximum battery life. Operation up to 1.25MHz allows the use of tiny surfacemount components.

简化框图

Technical Docs

数据资料 MAX1774评估板 Dec 11, 2003

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

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