Six-pin patch chip. The six-pin patch chip on the charging treasure is a six-pin patch chip, which is very common, and the six-pin switching power supply oscillation chip, also known as the power management chip. A power bank is a device that can charge mobile devices directly and has its own power storage unit
There may also be a battery indicator chip, lithium battery protection chip, DC-DC5V boost conversion chip, lithium battery charge management chip, switch tube. 220VAC-DC power conversion chip may be built in. It may also be a multi-function chip in one.