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USB to UART adapter - 2016

I've made this adapter as a weekend project from a spare CH340 chip I've had lying around. The PCB was hand-drawn just to maximally reduce construction time.

Schematic is below:

There are status LEDs for transmit and receive lines, which are powered from a 3V LDO to keep the compatibility with 3V logic. There are also two 47R resistors and a PTC fuse to provide at least some protection to/from the target device.

Up until I've built this UART adapter, I'd used another self-made one based on a cdc232 project with Attiny2313. It worked fine, but because its maximum baud rate was just 38400, I've eventually needed a faster one.