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dc voltage converter

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dc voltage converter Customers Reviews

  • fantastic in the car, now have high current USB available

    posted by mikeybravo

    simple to use, just plugged in the power and then a USB cable into the device. the power output is up to 3.5 amps, so it's good to charge iPads and other devices as a "quick charge".
    it was very easy to wire up, just found a +ve from the 12V in the car, and a -ve. very easy to wire up.
    Love it, will buy more for other people so they can also charge their devices in their cars.
  • Good Li-Ion to USB Charger board

    posted by relic38

    - Very low idle current (measured at 7uA). It can be left on a battery; no need to include a switch- Charge LED is only on when charging- Wide input voltage, even provides some charge below 2V input.- Stays cool enough to put in an enclosure without worrying about overheating.
    I used this to build a mobile power battery charger using a 3.5" HDD case and a single 22Ah LiFePO4 cell. Check my uploaded picture. This beast will charge my phone 7-8 times before needing a recharge.
    If you are looking for a low idle current USB charger board with a charge active LED, this is a good option. if you don't care if the LED is on always, SKU 143571 provides virtually the same current (check my review there) with a lower price.
  • Let's use it!

    posted by VladimrS

    Native design. The 68uH closed core inductor. True Low ESR, high RMS in/out capacitors.
    There is even no place for feedforward capacitor on so large board. Feedforward capacitor 33nF-220pF you must choose yourself depend on Output Voltage and solder it directly at the variable resistor manually (see datasheet LM2596). It should be better if the board has additional soldering pins specially for feedforward capacitor package 0805 or 1206. Some other low price DC-DC converters provide less quality inductor, lower value capacitors and narrow PCB tracks.
    Work's well. Let's use it!
  • Very good step up converter

    posted by keven91

    Handles 5+ amps of current (all my supply can put out) and boosts voltage well. Good regulation. Measures about 91% efficient. Small and compact. Has decent heat sink.
    Gets to 185 degrees F at ~3 amps input continuous at room temp (75 degrees).
    Overall a nice little unit, but don't expect 5 amps continuous with that heat sink. For the price it can't be beat.
  • Great item

    posted by tiolalu

    Holes to mount. Easy to assembly dor DIY applications.Easy to attach the wires (screw plaques).Good exterior quality/housing.Green led to verify the working state.Good load current for LED applications (2A)If it is right, good to have short circuit, overload, over-voltage protection function.
    Working at 220V with a led strip light without any problems.
    Good item, good exterior quality and powerful enough for the most led applications at 12v.

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