数据手册MAX1801 从控制器,配合MAX1800和MAX1802主控制器件工作扩展电源输出 .pdf [英文Rev.0(PDF,288kB)]

{状况:生产中。}

The MAX1801 step-up slave DC-DC controller is used with either the MAX1800 (step-up) or the MAX1802 (step-down) master DC-DC converter to provide a complete power-supply solution for digital still and digital video cameras. By using the master converter's reference voltage and oscillator, the size and the cost of the slave controller are reduced and all converters are guaranteed to switch at the same frequency. The MAX1801 drives an external N-channel MOSFET and can be used in step-up, single-ended primary inductance converter (SEPIC), and flyback topologies. If extra supplies are required for a new design, slave controllers can be added to an existing master circuit with minimal redesign, saving both cost and time. The MAX1801 features a built-in soft-start, short-circuit protection, and an adjustable duty-cycle limit. The MAX1801 is available in a space-saving 8-pin SOT23 package. Separate evaluation kits combining the MAX1800/MAX1801 (MAX1800EVKIT) and MAX1802/MAX1801 (MAX1802EVKIT) are available to expedite designs.

产品关键特性
  • Provides Simple Expandability for the MAX1800 and MAX1802 Master Converters
  • Operates in Step-Up, SEPIC, and Flyback Topologies
  • 100kHz to 1MHz Adjustable Operating Frequency
  • Duty-Cycle Limit Adjustable from 40% to 90%
  • Soft-Start
  • Short-Circuit Protection
  • 0.01µA Supply Current in Shutdown Mode
  • Tiny 8-Pin SOT23 Package
应用与使用范围
  • 数码相机
  • 数字摄像机
  • 手持式设备
  • 网络浏览器
  • PDA
  • 便携式DVD播放器
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
MAX1801EKA+生产中SOT;8引脚;9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1801EKA+T生产中SOT;8引脚;9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1801EKA-T生产中SOT;8引脚;9mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
功能接近器件
MAX1800数码相机升压型电源
MAX1802数码相机降压型电源
MAX1801 : 数码相机升压型DC-DC从控制器 MAX1801