Chip solution: DC-DC chip IP6505T
IP6505 should be one of the cheapest fast charging solutions now.
**Note that the suffix of this chip is T, which is different from the IP6505 pin location. Not universal**
The input is DC5521 interface, voltage 12-28v.
Input with 3A insurance and 28V tvs. So the voltage should not exceed 28v
Single panel layout is compact. If it's still too big, you can cut off the DC part and use it.
The input and output design leaves room for two 6.3x12mm capacitors. Enough to use a capacitor of appropriate capacity.
The output voltage indicator light is an original voltage regulator tube. It will light up when fast charging is activated. Although there is no precise voltage indication, it still plays a certain role in judging whether it is fast charging.
Maximum output 24W, integrated with various fast charging output protocols
DCP/QC2.0/QC3.0/MTK PE1.1/PE2.0/FCP/SCP/AFC/SFCP
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