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dc-dc power Customers Reviews

  • Needs more current than anticipated

    posted by Frijs

    It does a great job of adjusting the input to any desired output voltage.Fine design, so it could be build into any project.Good build quality
    There is no description of the requirements, like input current / voltage. Perhaps I would not have bought this solution otherwise.I think this device can do a great job when provided with a steady power supply.
    Not a great solution for solar power conversion.A great solution to build an adjustable power supply.
  • Very good regulator

    posted by Bunny1

    Simple and robust, very usefull. You can change trimpot by fixed resistor, there are pads to do it, and it turns into a fixed voltage regulator. Overcurrent protection. Voltage adjustment is very precise.
    Small and simple, easy to fix, possible use in many experiments and prototypes. I saw some other regulators based in LM2596 more cheap, but using bobin wih low inductance, let to experience in future.
    If you need a regulator for experiments or low production electronics, use it.
  • Not very efficient, but versatile

    posted by amigaexpert

    * Wide output range* Mount holes* Relatively small
    Find the desired resistance, desolder the potentiometer, add fixed resistance. This will increase stability & reliability.Also take care when screwing these to any conducting surface/material.And remember to add an mechanical switch.
    If you need more current then the small USB "charger"s can supply, or if 5V isn't enough for your use, then this or any other of the LM2577 adapters will definitely do the trick.But they have limits if the lithium cell is depleted, higher output voltages and/or currents may be problematic.This one is better for 2-cell applications.
  • VMP3111

    posted by sohman

    - easy to solder- simple output voltage selection with one resistor- high efficiency (in the optimal current range)- reasonable price- very few external components required
    The efficiency seems to be highest (over 90%) when the output current is about 700 mA
    If you have an application that needs a regulated power supply between 1 and 3.3 V with a current requirement of around 700 mA and ease of use and price is more important to you than circuit board area you will be very happy with this device. It does work for lower and higher currents too but the efficiency is lower in those scenarios.
  • Fast delivery, works well and value for money

    posted by cheehui68

    I ordered this power booster on 28th Nov and I received it on 6th Dec in good condition. Took slight more than 1 week which is consider very fast.I connected the input to my 12V DC battery which is charged up by solar panels. I adjusted the output to 17.2V to charge my Philips electric shaver. I measured the actual voltage using Digital multimeter and found it to be 17.13V which is close enough.The stands are in rubble which help to prevent from short circuit. The LED display is bright and clear.
    It would be good if it comes with plastic enclosure.
    Fast delivery, good product that suits my needs.Highly recommended.

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