芯片上面写了"R2RF", 5个引脚,SOT23-5封装...不知是什么电路,是个DC/DC芯片吗?? 哪里有购买的???
Input Common-Mode Voltage Range Includes Ground • Low Output Saturation Voltage 200 mV Typical • Open-Collector Output for Maximum Flexibility
i不知道是不是你所找的 QQ:136526222