Presenting Tiny!

[classwife]

Great size ! Great job !

 

[coolone1]

Would you quit showing these to us it's killing me. Thats two that I want now.

 

[MadmanMacguyver]

purrty...and small...cool gonna make one...

 

[joeyazzz]

Thanks guys!

No not selling them at this time - maybe though at a future time.

I want to give a shout out to CapeCAD in taking the time to work with me on wiring pin 1 of this 6A version. You totally rock Cape!!

you live in cape cod... i have a beach house there. how long did it take to make one of those?

 

[iuseaspork]

Do you think this parts list could fit in there? (with the 510 connector external)
Reg: 8.25
Digi-Key - 811-2179-ND (Manufacturer - OKR-T/6-W12-C)

caps: 1.34
http://search.digikey.com/us/en/products/GRM32NF51C106ZA01L/490-1894-1-ND/587373

switch: have
Digi-Key - 401-1778-1-ND (Manufacturer - KSC411J 70SH LFS)

Pot: 1.58
http://search.digikey.com/scripts/D...ng=en&site=us&keywords=3352T-201LF-ND&x=0&y=0

Oh... and 10k resistor: have
http://search.digikey.com/us/en/products/ERJ-8GEYJ103V/P10KECT-ND/203249

 

[mamu]

It will all fit - especially if you use a SMD tact switch.

But the caps you chose are out of spec for this converter - better to use no higher than 47µF. I use 10µF, 16v caps.

 

[iuseaspork]

Thanks. I assumed more was better when it came to the capacitor. I have edited the parts list to reflect your suggestion.

 

[lynch]

Thanks guys!

No not selling them at this time - maybe though at a future time.

I want to give a shout out to CapeCAD in taking the time to work with me on wiring pin 1 of this 6A version. You totally rock Cape!!

Nice job mamu, put me on the list when and if

 

[Scottinboca]

This thing really needs to be on the market!!!!!!!! It's awesome.

Presenting... Tiny (lol) ... my smallest vv regulated mod yet.

Features:
-High efficiency 6A, 30W switching converter (OKR-T/6-W12-C)
-Extended atty connector
-Finger adjustable voltage control knob
-juice well
-3.5 - 6 volt vaping range
-Takes 2, 14500 batts
-Totally stealth vapeable

Tiny measures 2-3/4" tall, 1-3/8" wide, and 5/8" deep.

I can't believe I actually squeezed everything in. Not an unch of extra space left.

BIG BIG Kudos to CapeCad and bstedh for sharing the wiring of the OKR module!!

 

[mamu]

Thanks. I assumed more was better when it came to the capacitor. I have edited the parts list to reflect your suggestion.

Those caps are a better choice. You can actually go up to 47µF and still keep within the recommended spec. CapeCAD in his schematic with the 3A version of this converter used 10µF, 16v so following his lead that's all I've used and have had no problems.

Here's what the datasheet says regarding external caps with this converter:

The converter will achieve its rated output ripple and noise with no additional external capacitor. However, the user may install more external output capacitance to reduce the ripple even further or for improved dynamic response. Again, use low-ESR ceramic (Murata GRM32 series) or polymer capacitors. Initial values of 10 to 47 μF may be tried, either single or multiple capacitors in parallel. Mount these close to the converter. Measure the output ripple under your load conditions.

Use only as much capacitance as required to achieve your ripple and noise objectives. Excessive capacitance can make step load recovery sluggish or possibly introduce instability. Do not exceed the maximum rated output capacitance listed in the specifications.

Good luck with SMD soldering!

 

[iuseaspork]

I've used dpak MOSFETs, smd resistors and switches. I actually prefer them... Who'da thought?

 

[NewUnit16]

i cant get enough of this mod