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常用芯片引脚英文标识:V+或VIN:主供电VDD或VCC:一般为5V供电或主供电SHDN:总开关信号或开关信号ON/OFF,SD,RUN,EN:开关信号BST,BOOST:振荡电路供电FB:反馈信号七、IN:输入OUT:输出GND,PGND:地REF:参考电压NC:空脚PG,POWERGOOD...