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Analog Devices / Maxim Integrated MAX1724EVKIT评估套件

Maxim MAX1724EVKIT评估套件是完全安装并经过测试的表面贴装电路板，包括两个独立的升压开关稳压器电路。左侧电路包括一个预置 3.3V 输出的 MAX1724。还可提供其它预置输出电压：2.7V、3.0V 或 5.0V。右侧电路包括一个 MAX1722，具有可调节的输出电压。该电路的输出电压设置为3.6V。所有器件在0.91V至VOUT输入范围内保持稳定输出，因此非常适合用于1节或2节碱性电池以及镍氢电池供电型应用。右侧电路也可以用来评估 MAX1723，MAX1723 具有关断模式（低电平有效 SHDN）。MAX1722/MAX1724设有BATT引脚，能够将启动电压从1.2V降至0.91V。

The right-side circuit may also evaluate the MAX1723, which features a shutdown (active-low SHDN) mode. The MAX1722 and MAX1724 have a BATT pin, which lowers the guaranteed startup voltage from 1.2V to 0.91V.

The Analog Devices MAX1722, MAX1723, and MAX1724 DC-DC Converters feature synchronous rectification and an ultra-low 1.5µA quiescent current for maximum efficiency and long battery life. Operation up to 200kHz allows tiny surface-mount components.

 

特性

  • 0.91V to VOUT input voltage range
  • Two complete boost circuits
    • 3.3V fixed (MAX1724)
    • 3.6V adjustable output (MAX1722)
  • Up to 50mA output from a 1-cell input
  • Up to 100mA output from a 2-cell input
  • 1.5µA quiescent current from VOUT
  • Up to 90% efficiency with synchronous rectification
  • Switching frequency up to 200kHz
  • All surface-mount design
  • Fully assembled and tested board

Schematic Diagrams

原理图 - Analog Devices / Maxim Integrated MAX1724EVKIT评估套件

Board Layout

机械图纸 - Analog Devices / Maxim Integrated MAX1724EVKIT评估套件
发布日期: 2016-10-11 | 更新日期: 2023-04-11