数据手册MAX1795, MAX1796, MAX1797 低电源电流、升压型DC-DC转换器,具有True Shutdown™ .pdf [英文Rev.0(PDF,432kB)]

{状况:生产中。}

The MAX1795/MAX1796/MAX1797 are high efficiency step-up DC-DC converters intended for small portable hand-held devices. These devices feature Maxim's True-Shutdown™ circuitry, which fully disconnects the output from the input in shutdown, improves efficiency, and eliminates costly external components. All three devices also feature Maxim's proprietary LX-damping circuitry for reduced EMI in noise-sensitive applications. For additional in-system flexibility, a battery monitoring comparator (LBI/LBO) remains active even when the DC-DC converter is in shutdown. The input voltage range is +0.7V to VOUT, where VOUT can be set from +2V to +5.5V. Startup is guaranteed from +0.85V. The MAX1795/MAX1796/MAX1797 have a preset, pin-selectable 5V or 3.3V output. The output can also be adjusted to other voltages, using two external resistors. The three devices differ only in their current limits, allowing optimization of external components for different loads: the MAX1795, MAX1796, and MAX1797 have current limits of 0.25A, 0.5A, and 1A, respectively. All devices are packaged in a compact 8-pin µMAX® package that is only 1.09mm tall and half the size of an 8-pin SO.

产品关键特性
  • >95% Efficiency
  • True-Shutdown Circuitry
    • Output Disconnects from Input in Shutdown
    • No External Schottky Diode Needed
  • 25µA Quiescent Supply Current
  • Low-Noise Antiringing Feature
  • LBI/LBO Comparator Enabled in Shutdown
  • 2µA Shutdown Current
  • 8-Pin µMAX Package
应用与使用范围
  • PDA与掌上电脑
  • 便携式数字音频播放器
  • 便携式终端
  • 无线手机
典型工作电路

芯片订购型号
订购型号产品状态封装形式工作温度RoHS/无铅
MAX1795EUA生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1795EUA+生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1795EUA+T生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1795EUA-T生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1796EUA生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1796EUA+生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1796EUA+T生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1796EUA-T生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1797EUA生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1797EUA+生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1797EUA+T生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1797EUA-T生产中µMAX;8引脚;15.6mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
功能接近器件
MAX1674高效率、低电源电流、紧凑的、升压型DC-DC转换器
MAX1675高效率、低电源电流、紧凑的、升压型DC-DC转换器
MAX1676高效率、低电源电流、紧凑的、升压型DC-DC转换器
MAX8563.3V/5V或可调输出、升压型DC-DC转换器
MAX8573.3V/5V或可调输出、升压型DC-DC转换器
MAX8583.3V/5V或可调输出、升压型DC-DC转换器
MAX8593.3V/5V或可调输出、升压型DC-DC转换器
MAX8663.3V/5V或可调输出、单节电池DC-DC转换器
MAX8673.3V/5V或可调输出、单节电池DC-DC转换器
评估板与开发套件
MAX1797EVKITMAX1795、MAX1796、MAX1797评估板
相关芯片型号
MAX1797EVKITMAX1795、MAX1796、MAX1797评估板
MAX1795-MAX1797.pdf MAX1797
Introduction to Spirometers and Important Design Considerations for Selecting Electrical Components MAXQ622
Boost Converter Switches Between Battery and USB Power MAX1792
MAX1795.pdf MAX1795