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Maxim产品 - MAX1524介绍

MAX1524 - 简单的SOT23封装boost控制器

MAX1524是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1524是简单的SOT23封装boost控制器，本站介绍了MAX1524的封装应用图解、特点和优点、功能等，并给出了与MAX1524相关的Maxim元器件型号供参考。

MAX1524 - 简单的SOT23封装boost控制器 - DC-DC开关调节器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX1522/MAX1523/MAX1524 are simple, compact boost controllers designed for a wide range of DC-DC conversion topologies, including step-up, SEPIC, and flyback applications. They are for applications where extremely low cost and small size are top priorities. These devices are designed specifically to provide a simple application circuit and minimize the size and number of external components, making them ideal for PDAs, digital cameras, and other low-cost consumer electronics applications.

These devices use a unique fixed on-time, minimum off-time architecture, which provides excellent efficiency over a wide-range of input/output voltage combinations and load currents. The fixed on-time is pin selectable to either 0.5µs (50% max duty cycle) or 3µs (85% max duty cycle), permitting optimization of external component size and ease of design for a wide range of output voltages.

The MAX1522/MAX1523 operate from a +2.5V to +5.5V input voltage range and are capable of generating a wide range of outputs. The MAX1524 is intended for bootstrapped operation, permitting startup with lower input voltage. All devices have internal soft-start and short-circuit protection to prevent excessive switching current during startup and under output fault conditions. The MAX1522/MAX1524 have a latched fault mode, which shuts down the controller when a short-circuit event occurs, whereas the MAX1523 reenters soft-start mode during output fault conditions. The MAX1522/MAX1523/MAX1524 are available in a space-saving 6-pin SOT23 package.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Simple, Flexible Application Circuit
  • 2-Cell NiMH or Alkaline Operation (MAX1524)
  • Low Quiescent Current (25µA typ)
  • Output Fault Protection and Soft-Start
  • High Efficiency Over 1000:1 IOUT Range
  • Pin-Selectable Maximum Duty Factor
  • Micropower Shutdown Mode
  • Small 6-Pin SOT23 Package
  • No Current-Sense Resistor
    • 热门应用
  • 工业+24V和+28V供电电源
  • LCD偏置电源
  • 低成本电池供电应用
  • 低成本、大电流或高电压升压转换器
  • 低成本、多输出反激式转换器
  • SEPIC转换器
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