Quick question about the V3 pin

[HankLloydRight]

First, thanks for this design, very helpful! Thank you.

I'm trying to integrate this on my own custom PCB with the ESP32-WROOM, but I find conflicting information about the V3 pin #4.

In your design, you have V3 going to a 100nF cap to ground, which many CH340C designs have when powering with a 3.3v source on VCC.

But in the datasheet for CH304C, it says: "When using 3.3V power voltage, connects V3 with VCC, both input 3.3V power voltage, and the other circuit voltage which connected with CH340 cannot exceed 3.3V" which is what I'm doing, because that's how the LOLIND32 dev board has, which is what I based my design off of (see: https://www.wemos.cc/en/latest/_static/files/sch_d32_v1.0.0.pdf )

So why the discrepancy with V3, and what difference does it create? My circuit is drawing nearly 800ma which is more than twice it should be pulling, I'm wondering if it's because I have VCC and V3 tied together like the datasheet says.

thank you.