数据手册MAX1714, MAX1714A, MAX1714B 低成本、具有快速响应特性、精度为1%的电源控制器,用于下一代笔记本CPU核以及I/O供电 .pdf [英文Rev.2(PDF,896kB)]

{状况:生产中。}

The MAX1714 pulse-width modulation (PWM) controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low-voltage CPU core or chip-set/RAM supplies in notebook computers. Maxim's proprietary Quick-PWM™ quick-response, constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency. The MAX1714 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous-rectifier MOSFETs. Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, two-stage conversion (stepping down the +5V system supply instead of the battery) at a higher switching frequency allows the minimum possible physical size. The MAX1714 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 1V. The MAX1714A is available in a 20-pin QSOP package and includes overvoltage protection. The MAX1714B is available in a 16-pin QSOP package with no overvoltage protection. For applications requiring VID compliance or DAC control of output voltage, refer to the MAX1710/MAX1711 data sheet. For a dual output version, refer to the MAX1715 data sheet.

产品关键特性
  • Ultra-High Efficiency
  • No Current-Sense Resistor (Lossless ILIMIT)
  • Quick-PWM with 100ns Load-Step Response
  • 1% VOUT Accuracy Over Line and Load
  • 2.5V/3.3V Fixed or 1V to 5.5V Adjustable Output Range
  • 2V to 28V Battery Input Range
  • 200/300/450/600kHz Switching Frequency
  • Overvoltage Protection (MAX1714A)
  • Undervoltage Protection
  • 1.7ms Digital Soft-Start
  • Drives Large Synchronous-Rectifier FETs
  • 2V ±1% Reference Output
  • Power-Good Indicator
应用与使用范围
  • 1.8V与2.5V I/O电源
  • 芯片组/RAM供电,电压可低至1V
  • CPU核电源
  • 笔记本电脑
最简工作电路

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
MAX1714AEEP生产中QSOP;20引脚;54.2mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1714AEEP+生产中QSOP;20引脚;54.2mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1714AEEP+T生产中QSOP;20引脚;54.2mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1714AEEP-T生产中QSOP;20引脚;54.2mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1714BEEE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
MAX1714BEEE+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
MAX1714BEEE+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
MAX1714BEEE-T生产中QSOP;16引脚封装信息-40°C至+85°C参考数据资料
评估板与开发套件
MAX1714AEVKITMAX1714A评估板
MAX1714BEVKITMAX1714B评估板
相关芯片型号
MAX1714AEVKITMAX1714A评估板
MAX1714BEVKITMAX1714B评估板
MAX1714-MAX1714B.pdf MAX1714B