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- Buck Converter - 8-20V to 5V/3A
This is a high grade DC Buck converter that inputs 8 to 12V and outputs 5V up to 3A or 15W. With good thermal performance and protection, this DC block is perfect for battery applications (such as SLAs or LFPs) that need to power a USB or 5V device even while the input is varying (battery charge/discharge). 89% efficiency makes this a high-efficiency, plug and play, DC Step Down solution.
- Input Voltage: 8 to 20VDC
- Input Current: 3ADC max
- Quiescent Current: 12.5mA
- Efficiency: 89%
- Output Voltage Accuracy: ±1%
- Load Regulation: ±2%
- Ripple: 30mVp-p
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Customer Reviews
2.5 out of 5
Based on 2 ratings:
1 of 3 found this helpful:
No Output Voltage at 7.5V
I know the title says 8-20V but the description says 6-20V so I gave it a whirl. I have a 7.5V battery and it did not work. I hooked it up to a 9V power source and it works. Stick to the 8V minimum not 6V. I have no real review as it is of no use to me.
Worked fine while it lasted
Bought one of these for an automotive project as a convenient way to power a microcontroller. At first it worked as expected, while I was still feeling things out on a breadboard, but then it suddenly stopped working. First thing I noticed was the over current light on my benchtop power supply. Then the converter was unpleasantly hot to the touch. Probing with a multimeter, the 5V side is dead shorted, tenths of an Ohm across the leads. I probably shorted it by accident, so I'll give it the benefit of the doubt that it didn't just quit for no reason. However, the datasheet claims "Short circuit, Over load, Over temperature protections" so I would have hoped it might recover after it cooled down. No such luck.
What's an SLA or a LFP? Thanks, Mark
Sealed lead acid, Lithium iron phosphate (LiPo).
Looks like Sparkfun has gotten into selling junk products without evaluating them, joining the race to the bottom with Amazon, Newegg, etc. Too bad.
I'm going to purchase this and see how it fares, will report back. But, I agree here, it's sad to see random chinese products that are just... out of place here.
good