ME7660芯片是负电压电荷泵，可以产生最高10V负电压，电路连接简单，价格便宜，用在转接头等设备中，可以减低开发费用。-ME7660 chip is a negative voltage charge pump, can produce up to 10V negative voltage, the circuit connection is simple, inexpensive, first-class equipment used in the adapter, you can reduce development costs.