I plan on using a LTC6992 Voltage-Controlled Pulse Width Modulator (PWM)
which looks like this:
If not in a pcb how can I use it?
Solder directly to the pins?
If anyone knows of a similar 6 pin device that I can insert into a breadboard let me know.
You can buy ‘smd to DIP’ PCBs.
Or solder "dead bug" style to strip board and add headers.
A small breakout board is the recommended way to use those parts. You can dead-bug them, but the soldering is really fiddly.
To solder those to the breakout board, it's much easier - put a bit of solder on one of the pads in the corner, tack the part down, then apply "no clean gel flux" (the kind that you get on amazon/ebay in the syringes) to the pins, and drag solder them (google/youtube search drag soldering for guides and instructional videos - it's surprisingly easy).
There's a Schmartboard for that:
I would definitely use one of the above mentioned adapter boards.
Soldering "dead bug" style is risky especially for someone without a lot of previous soldering experience. Touching an IC lead with out any board to spread the heat can really heat up the pin. Even with the adapter you will need some fine solder and fine tipped iron.
I'm not trying to discourage you because it is often done successfully but you will need some soldering finesse to get it right. You should not count on getting the first one right. It will usually work out OK but if you are purchasing some parts its easier to have a couple of spares just in case.
This is the kind of tip I use. Way better for SMD soldering.
With drag soldering, you need neither a fine tipped soldering iron nor fine solder - a finer soldering iron tip doesn't even really help. The point of drag soldering is that you don't need to individually solder each pin, you just rely on the flux and the surface tension of the solder to form the solder joint; you want the tip to be wider than the pins you're soldering.
And good ol' Dave has some ideas about this:
Highlights:
Thank you for all the ideas.
Would it be ok to solder a short wire to each pin then I can insert into a bread board.
Would rather not buy additional parts.
duinoMike:
Thank you for all the ideas.Would it be ok to solder a short wire to each pin then I can insert into a bread board.
Would rather not buy additional parts.
You can try, but I've found such attempts very difficult and fraught with failure. The surface area on the "feet" just isn't enough to achieve the strength needed.
duinoMike:
Would rather not buy additional parts.
Just buy the adapters.
Problem solved. 
Paul__B:
Just buy the adapters.
Also referred to as "Breakout Boards".
eBay is a good source. But, for a beginner, the Schmartboards may be more accessable [i.e. *easier to use*]. BUT, they are a lot more expensive.
I'm certainly not trying to discourage your, however what you are considering would be a challenge for someone with a fair amount of soldering experience. If it were me I would be more concerned about damaging the part I'm trying to use. If you have only one or two consider what you would do if they were damaged trying to solder.
If you wish to give it a go I would suggest,
Using a solderable breadboard, not the solderless type.
I think this is your best bet without using an adapter.
“Would it be ok to solder a short wire to each pin then I can insert into a bread board.”
Just do things right, spend some money or get another hobby.
I think you will find most of the folks answering here have a lot of experience and have learned some time ago (at least I had) that using the "right" parts is the only way to go.
However when I was just starting out making do with what I had on hand. As I grew older my time became more valuable and I had more funds on hand so I started buying the more of the "right" parts whether it was a paint brush or soldering iron or whatever.
Don't get discouraged because you are going through the same phase as I did. As you get more experienced you will start increasing the quality of your tools.