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dc-dc power module

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dc-dc power module Customers Reviews

  • 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.
  • 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.
  • 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.
  • Excellent for driving high power LEDs SAFELY

    posted by walter6

    This is my best deal on DealExtreme. Product is correctly described. High quality components and production. It can be used for driving any high power LED (forward voltage 8-80V) from ><12V DC (description says 8-80V but this i have not tested) source and if tuned properly the working frequency will not go below 200kHz, emitted light will be consistent without any tremors in light intensity. I suggest that you tune it with warmed diodes because warmed are pulling more current than cold ones if you want to achieve 0,01A constant current precision. After intensive 48 hours continuous test i have complete confidence that this booster will protect my $200 worth high power (90-93 CRI) Bridgelux and Cree LED’s (constant current and constant voltage protection) against any input voltage variations. I purchased 2 of them and both are perfect (0,01A and 0,01V precision). Products are shipped 2-3 days after purchase ?.I will post some oscilloscope images for experts.
    Most countries are exempt from customs duties and taxes on shipments worth up to 20€, such as this useful thingy.
    After couple of negative reviews, this is my first positive one on DX. Deals as this one will make me come back for more.

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