A power bank based on the TP5602 solution supports a maximum input and output of 5V/3A. This solution is quite unpopular, but Tuowei has always done a good job in low power consumption. The standby current is nominally 6uA, compared with the classic IP5306 It's a lot lower, and it's an advanced QFN (no), so I made this thing.
Because I was fooled by the manual into using a 1206 filter capacitor (actually I feel that at most 0805 is enough), the entire 40*20 board seemed very crowded, and I had to use a four-layer board, but the advantage is that it is easy to put together (( (
It has not been verified yet, but it has been proofed, but it should be no big problem, but it is still recommended to wait until I verify it before using it.
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