Question: 3-13V to 5-15V Matek DC-DC Voltage Boost

[crazyhendrix]

Anyone used this before? I'm trying to build a single 26350 regulated box mod in a Hammond 1590H enclosure. I've been looking for a Voltage boosting chip that will fit in that for the longest time. Since I mainly vape at 1.8-2ohm at 4.7-5v, I barely draw 3A from the battery. Plus this is a really tiny chip.

I've searched this forum and never found any mention of this voltage booster, wondering if anyone has any experience with this? Any reason why this won't work?

Matek DC-DC Voltage Boost Regulator

Matek DC-DC Voltage Boost Regulation Module Converter 3-13V to 5-15V

3-13V liter 5-15V, adjustable output voltage, maximum output current of 3A. Wide output voltage, suitable for a variety of electricity demand model.

Specification:
- Input voltage: 3-13V
- Output voltage: 5-15V adjustable
- Output current: Max 3A
- Static consumption<=10mA
- Output indicator
- Reverse polarity protection, over-flow protection, over-heat protection
- Typical efficiency: 80%-95%
- Dimension: 37*19*4mm
- Weight: 3.5g

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[Alexander Mundy]

Let's look at the lower end of the battery voltage which is where most all up converters are most limited. Looking at the graphs from your link you will be limited to about 10 Watts (2 A) output at 3.3 V input and 5 V output. This is a little below your usual vaping parameters. 1.8 ohm at 5 V is 13.9 W and 2 ohm at 5 V is 12.5 W. Without further information about the chips specifications than provided in the link I can't tell if it will function with less than a 2.5 ohm coil at 3.3 V input. It may well, but the efficiency curve is really dropping fast at that point which tells me that it is straining really hard already. Bottom line is that it is borderline at best.

 

[dc99]

At that price point there should be plenty of boards that would do what you want.
$12.34 JiGuan-150T 15W E-Cigarette PCB Circuit Board - for DIY Mod or Mod replacement part at FastTech - Worldwide Free Shipping
$12.34 JiGuan-150T 15W E-Cigarette PCB Circuit Board - for DIY Mod or Mod replacement part at FastTech - Worldwide Free Shipping
$7.74 eGo-VV 0.65" LCD 3.0-6.0V Variable Voltage Control Module at FastTech - Worldwide Free Shipping

 

[crazyhendrix]

Thanks for the replies guys. Need to learn more about electronics.

 

[dc99]

Trust me there are a few guys and gals on here that can answer anything you throw at them.

 

[crazyhendrix]

Trust me there are a few guys and gals on here that can answer anything you throw at them.

Oh no man, I don't doubt that. [emoji1] which is the reason why I asked this question. I'm still learning the basics of building a mod.