ADI的开关电源芯片 ----- ADP2311

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ADI的开关电源芯片 ----- ADP2311 [复制链接]

      ADP2311为双路1A、18V同步降压型开关电源芯片。
输入电压范围从4.5 V到 18 V,，最低输出电压可以低至0.6V
每一通道可以连续输出1A电流。


      ADP2311内部集成了高端及低端 MOSFETs ，可提供很高的效率，
两通道工作180°相位的交错方式，可以非常有效地减小波纹、输入电容体积。减EMI

特点和优势

• Input voltage: 4.5 V to 18 V
• ±1.0% output accuracy
• Integrated MOSFET:
  110 mΩ/ 60 mΩ typical
• Continuous output current:
  1 A/ 1 A
• Power fail comparator generates warning
• Power-on reset with programmable delay timer
  

• Adjustable voltage monitor for power down (channel 2)
• Watchdog refresh input
• Dual phase with 180° out of phase operation
• Fixed switching frequency:
  300 kHz
• Internal compensation and soft start
• See data sheet for additional features