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Toon origineel

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  • 15/02/2016

    Finally i received my buck-converters, expect those to be as stable as the first I ordered. (identical PCB's :-) ;-) ) Function perfect as switch-down PSU for LED-strips where I distribute from a 22-26V unstabilized (transformer/rectifier) or a 24V DC PSU. Only negative about this Buck-converter is the trimmer which I replace with an 0805 resistor with a value needed for the given LED-strip voltage-need. Runs easily up to 0.75A without cooling and above that just a small cooling-fin clued on the back-side. Above 1.5A I split up and use 2 or more PSU's :-) as I don't like electronics to be hotter than 65-70 degree Celsius (40 years experience) The shown photo is the PSU mounted with a small sub-board and a supply-capacitor 1500µF/35V used together with 2 meters of SKU15256 "Warm White 5630 SMD Non-waterproof 300 LEDs Strip" and a PIR-sensor. Non-activated PIR the PSU deliver 7.5V (LED's using about 0.25W and running 24/7) weak but OK standby light and activated PIR the PSU deliver 11V (absolute maximum for the used LED-strips and now using approx 10-11W) Really power-light !! ;-) :-) :-D . My main-door outdoor-light :-)

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  • 07/02/2018

    zuverlässige Spannungsregler für variabel einstellbare Spannungsversorgung Input voltage: 4.5V ~ 28V Output voltage: 0.8V ~ 20V Output current: rated current is 2A

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  • 12/01/2016

    We use this step-down converter to supply 5 V DC for 5 V LEDs stripes.

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  • 29/10/2019

    goooooood

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  • 07/05/2018

    good

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  • 12/12/2021

    I love these buck convertors. if I could give it 10 stars I would. Connected it on 14v and adjusted it to 5v they work perfect. Connected it to 25v and they still give out 5V without any adjustment. Perfect for use in cars 12v and Trucks 24v as 5v supplies

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  • 08/01/2015

    Very useful dc dc hard to make so small pcb by yourself(also cheaper), using it to charge lithium batteries inside closed case projects..., just make sure you don't discharge it too much , just set it to 4.15-4.18v (cv) (better don't set it to 4.2v) and it will slowly stop charging when it reach when voltage of the battery rises to 4.xx(the one you set), better don't use it to charge in series, just single or parallel

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  • 13/11/2015

    I bought 20 units of them and I already put some into "production". As the specification said, the user will need additional heatsink to avoid overheating and self-shutdown. Several times I made mistake and put 20V into the input in inverted polarity, but the converter survived without and issue. Also, if the current is too much and the chip overheated (it can be pretty hot! under high load: >1500mA) the chip stops working (turned off itself) but as it will be cooler, it will switch on again. So, it is possible to get a blinking LED if the user do not use heatsink. Adjusting the output voltage is easy and it can be pretty stable under different loads (like using to feed a PWM output to drive LED modules (COB/strips etc.).

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    Toon origineel
  • 22/07/2018

    Mine were green - if it matters.. It's okay considering the price, but it will have troubles keeping output voltages stable at fast changing loads.. I tested it with output voltage set to 6.3V and currents changing between 0 and 1.3A (with 1.3A staying 70% of the time) at 9V and 12V inputs. Under these conditions it runs very hot (at both 9V and 12V inputs) and definitely needs a heat sink. But the troubling part is that the output voltage jumped significantly at changing loads - between 5.5V and almost 8V. I would rather recommend the RT8272-based model - also available here at Bangood at a slightly higher price - which is way more stable and seemingly more efficient as it doesn't run that hot under the same condition as above and will not need a heat sink..

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  • 08/12/2016

    Товар пришел быстро, соответствует описанию, хорошее качество, умеренная цена. Никаких жалоб! Ставим плюсик и рекомендую покупать. Спасибо Banggood Team! Product came quickly, fits the description, good quality, reasonable price. No complaints! Put a plus sign and recommend to buy. Thank You Banggood Team!

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