数据手册MAX1700, MAX1701 紧凑的高效、低噪声升压转换器,带有增益电路 .pdf [英文Rev.1(PDF,264kB)]

{状况:生产中。}

The MAX1700/MAX1701 are high-efficiency, low-noise, step-up DC-DC converters intended for use in battery-powered wireless applications. They use a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from battery inputs such as one to three NiCd/NiMH cells or one Li-Ion cell. Both devices have an internal 1A, 130mΩ N-channel MOSFET switch and a 250mΩ P-channel synchronous rectifier. With their internal synchronous rectifier, the MAX1700/ MAX1701 deliver 5% better efficiency than similar nonsynchronous converters. They also feature a pulse-frequency-modulation (PFM) standby mode to improve efficiency at light loads, and a 3µA shutdown mode. The MAX1700/MAX1701 come in 16-pin QSOP packages (which occupy the same space as an 8-pin SO). The MAX1701 includes two comparators to generate power-good and low-battery warning outputs. It also contains a gain block that can be used to build a linear regulator using an external P-channel pass device. For higher-power outputs, refer to the MAX1703. For dual outputs (step-up and linear regulator), refer to the MAX1705/MAX1706. For an on-board analog-to-digital converter, refer to the MAX848/MAX849. The MAX1701 evaluation kit is available to speed design time.

产品关键特性
  • Up to 96% Efficiency
  • 1.1 VIN Guaranteed Start-Up
  • 0.7V to 5.5V Input Range
  • Up to 800mA Output
  • Step-Up Output (adjustable from 2.5V to 5.5V)
  • PWM/PFM Synchronous-Rectified Topology
  • External Clock or Internal 300kHz Oscillator
  • 3µA Logic-Controlled Shutdown
  • Power-Good Output (MAX1701)
  • Low-Battery Comparator (MAX1701)
  • Uncommitted Gain Block (MAX1701)
应用与使用范围
  • 数字无绳电话
  • 手持式仪表(PDA、掌上电脑)
  • 掌上电脑
  • PCS电话
  • 个人通信装置
  • 双向寻呼
  • 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
MAX1700EEE生产中QSOP;16引脚;30.9mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1700EEE+生产中QSOP;16引脚;30.9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1700EEE+T生产中QSOP;16引脚;30.9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1700EEE-T生产中QSOP;16引脚封装信息-40°C至+85°C参考数据资料
MAX1701EEE生产中QSOP;16引脚;30.9mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1701EEE+生产中QSOP;16引脚;30.9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1701EEE+T生产中QSOP;16引脚;30.9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1701EEE-T生产中QSOP;16引脚封装信息-40°C至+85°C参考数据资料
功能接近器件
MAX17031节至3节电池、大功率(1.5A)、低噪声、升压型DC-DC转换器
MAX17051至3节电池、大电流、低噪声、升压型DC-DC转换器,带有线性稳压器
MAX17061至3节电池、大电流、低噪声、升压型DC-DC转换器,带有线性稳压器
评估板与开发套件
MAX1700EVKITMAX1700、MAX1701评估板
MAX1701EVKITMAX1700、MAX1701评估板
相关芯片型号
MAX1700EVKITMAX1700、MAX1701评估板
MAX1701EVKITMAX1700、MAX1701评估板
MAX1700-MAX1701.pdf MAX1701
3.3V Lithium-Ion-Cell Buck/Boost Supply Requires One Inductor MAX1701
典型工作电路 MAX1701