Bought components for booster converter prototype, not sure if they are suitable

I'm interested in designing a boost converter using the TPS61021A chip from TI.

Data sheet: http://www.ti.com/lit/ds/symlink/tps61021a.pdf

Originally, I wanted to build a Manhattan type dead bug prototype circuit by following the example circuit on page 12. I bought components off Mouser by going by the guidelines given in page 13-14.

For the inductor, I bought the exact Coilcraft inductor specified in the datasheet so there is no problem. But when it comes to capacitors and resistors, I calculated the values I need, but there are different types/power rating/mount type, and I don't think I bought the most suitable ones. Here are the ones I bought, along with labels corresponding to the components in the circuit on page 12:


A few issues:

  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.

  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?

  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.

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?

Thanks

paulwece:
Are there places where I can send in the components and an Eagle file and they can prototype cheaply and quickly?

You'll have to provide Gerber files.

Plenty of such companies - put a "PCBA" type request on Alibaba and within seconds (literally - maybe a little slower if it's in the dead of the night) manufacturers will start to present themselves. Not sure if it's economical to send in your parts or let them just handle the whole shebang. Just make sure you provide the proper specifications.

This chip has a typical operating frequency of 2MHz.
chip size is ~2x2mm. Inductors sizes are also small (~4*4mm)
Layout (parts, traces) will be critical.
Working with chips like this is not for a beginner.
Have a look at the Pololu website.

Your board shouldn't be bigger than that.
Leo..

Agreed. I've heard before that PCB design is critical for buck converters. So for my own PCB design I'm taking a complete buck converter module and treat it as separate component. Maybe not the prettiest, but then at least I'm confident to get it to work!