1) R2: Notice how big R2 is. I believe this is because I bought one with too high of a power rating. This is definitely not suitable.
I'll assume you bought a 383K resistor for R1 to meet your specific voltage needs, around 3.83V.
R2 is a 3W resistor. It's way overrated for your use, but the circuit should work normally using it. This resistor is used as a feedback to the switching IC, and it's pretty easy to have and idea of the power dissipated.
If your output was 5V (higher than 3.3V or 3.8V, this will give you some margin), the DC current flowing through R1 and R2 would be 5V/(R1+R2), which is around 10µA.
Now you should be able to calculate the power for each resistor as P = R*i²:
R1 = 383k * (10µA)² = 38.3µW
R2 = 100k * (10µA)² = 10.0µW
That means you could even be using very small SMD resistors which are rated 1/16W.
2) R1: This looks like a typical resistor. Notice how it says "metal film" while R2 says "metal oxide." For my application, does it matter what
type of resistor to use?
There should be no problem with these common types of resistor.
3) Capacitors: I believe I got X7R ceramic caps for all. Do you see any problems with the capacitors? There are no problems with the values. I
also believe I took into account of capacitance derating under dc bias voltage. Notice the high voltage value for the capacitors on the bag.
I wouldn't say that the 22µF capacitor has a high voltage value at 6.3V, but it should work.
About C3, the datasheet recommends a 50kHz f
FFZ.
f
FFZ = 1/(2pi * C3 * R1) = 1/(2pi * 10pf * 383k) = 41.56kHz
Maybe you should've got a 8pF capacitor.
Anyway, those were purchased a month ago. Then I realized it's hard to make a dead bug style circuit since the IC chip in question is of the WSON package which is way too small for me to work with. I plan to make a PCB prototype. Are there places where I can send in the components and an Eagle file and they can prototype cheaply and quickly?
Yes, there are.
Seeedstudio should be able to do PCBA, so you can have a look with them. If you are going through this route, I suggest using 0805 or 0603 resistors for R1 and R2.