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Maxim产品 - MAX1834介绍

MAX1834 - 高效率、升压型转换器，带有反接电池保护

MAX1834是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1834是高效率、升压型转换器，带有反接电池保护，本站介绍了MAX1834的封装应用图解、特点和优点、功能等，并给出了与MAX1834相关的Maxim元器件型号供参考。

MAX1834 - 高效率、升压型转换器，带有反接电池保护 - 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 MAX1832-MAX1835 are high-efficiency step-up converters with complete reverse battery protection that protects the device and the load when the battery is reversed. They feature a built-in synchronous rectifier, which allows for over 90% efficiency and reduces size and cost by eliminating the need for an external Schottky diode.

These step-up converters operate from a +1.5V to +5.5V input voltage range and deliver up to 150mA of load current. The MAX1833EUT/MAX1835EUT (SOT devices) have a fixed 3.3V output voltage. The MAX1833ETT30 (TDFN device) has a fixed 3.0V output voltage. The MAX1832/MAX1834 have adjustable outputs from +2V to +5.5V. In shutdown, the MAX1832/MAX1833 connect the battery input to the voltage output, allowing the input battery to be used as a backup or real-time clock supply when the converter is off (see Selector Guide).

MAX183_EUT devices are available in a miniature 6-pin SOT23 package. The MAX1833ETT30 is available in a 3mm x 3mm thin DFN package. The MAX1832EVKIT is available to speed designs.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Reverse Battery Protection for DC-DC Converter and Load
  • Up to 90% Efficiency
  • No External Diode or FETs Needed
  • Internal Synchronous Rectifier
  • 4µA Quiescent Current
  • <1µA Shutdown Supply Current
  • +1.5V to +5.5V Input Voltage Range
  • Accurate active-low SHDN Threshold for Low-Battery Cutoff
  • BATT Connected to OUT in Shutdown for Backup Power (MAX1832/MAX1833)
  • RST-bar Output (MAX1833/MAX1835)
  • Fixed 3.3V/3.0V Output Voltage
  • Adjustable Output Voltage (MAX1832/MAX1834)
  • Up to 150mA Output Current
  • Tiny 6-Pin SOT23 Package
  • Tiny 6-Pin Thin QFN Package (MAX1833ETT30)
    • 热门应用
  • 备用电池
  • 无绳电话
  • 数码相机
  • 手持式仪表
  • 本地3.3V至5V转换电源
  • 医疗诊断设备
  • 寻呼机
  • PC卡
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