Buck converter 12v to 5v

Based on 0 reviews 0. Questions and answers of the customers There are no questions yet. Output Voltage VDC : 1. Output Current: 2A Rated, 3A maximum with heat sink. Switching Frequency: kHz.

Input reverse polarity protection. Built-in output short protection function. Input Voltage: 12V Connector: 5. Naturally converters aimed at A loads perform worse in this scenario, which is exactly what I was trying to show.

Somebody looking to power a device in the 50mA range should now know to be wary of generic phone chargers. Nice overview, thanks. The output ripple usually increased with input voltage and current drawn. However, adding a 15nF capacitor did not solve all of the ripple I would consider a ripple up to mV acceptable. I will look into it again to be sure it was a decent measurement. For Fine the minimal input voltage was 6. Ripple measured with a Tektronix oscilloscope, maybe it is also possible to measure it with a multimeter set to AC Volts.

I was not concerned with the ripple as in my scenario the output of the buck goes to a linear regulator. I think that if you are sensitive to ripple you should look for a buck with a fast switching frequency. I believe the higher the frequency the smaller the ripple. Is there any reason not to use a LDAG50 or variant? It is compact, temperature, voltage and current stabilised and give a good reference voltage regardless of input within limits provides 1A and is cheap as chips cheaper in fact.

They also do different form factors and output voltages i also use the 5V version. The main reason why not to use it is that it is a voltage regulator and not a buck converter. The difference is explained in the article. In a high current scenario, this chip will overheat. I have a 12v motorcycle power source and want to power 5v into a sensor. A nice and steady 5v is important for accurate readings. Bonus points is for not using too many amps, as the stator can only pump out so many amps.

Do you have any advice on how to convert a 12v source which may itself not be super steady, I have no idea into a steady 5v? Are you going to use this only when the engine is running or also from battery when the engine is idle? There are several ways to do this. To be able to choose the right way you need to specify how many amps the load sensor? What exactly are you going to connect to the 5V line? Hello, and thanks for the article! I am looking for an efficient converter for my led christmas lights.

I have a solar panel to charge a 12V battery, but need 5V ma to power the leds. Thanks again! Do your lights include a led driver? LEDs typically need a constant current source. None of the converters above are constant current. Yes, the string of lights has a USB plug with a controller inside to set different modes, brightness, and a timer. Last year I powered them from a power bank that I recharged every day and put back outside at night. I need to test 6 volt starter solenoid windings on a era automobile.

The spec is: both windings 5v 80F amps, hold—in winding 5v 80F amps. Not sure where to start, I have a 6 volt automotive battery. Hi Dan, I am not sure I know how to help you. I have an Arduino mega that will manage with relay a 12v alimentation with relay for LED light and I want to dedicate this electricity to the Arduino to avoid to add an charger.

What you are trying to do is more complex than what it seems at first. The reason is that phones use various charging protocols to discover the max current of the charger. By default the current an USB charger provides is mA.

Some additional things for you to consider: Is that 0. Did you try to put a controllable load on the converter output and test it at 1A, 2A and 3A? What charging protocols your phone supports?

Hi I need mA converter DM01 bill of material. I would appreciate any kind of help. Thank you! Thank you for your research. I have purchased one of the Fine converters and it works a treat for my application which is a dummy battery to supply a Huawei e pocket modem. Author required.

Email will not be published required. Notify me via e-mail if anyone answers my comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. Voltage regulators The Arduino Uno has a voltage regulator on board which we could use. Measuring current on both sides. Measuring current with dummy load. Efficient DC 12V to 5V conversion for low-power electronics, evaluation of six modules was last modified: March 24th, by Arik Yavilevich.

Reply Roedi Jun 20, pm Thanks so much for this article! Reply lukesan Mar 10, am Arek and Roedi. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 5 years, 3 months ago. Active 3 years, 5 months ago. Viewed 10k times. Improve this question. Finbar Maginn Finbar Maginn 1 1 gold badge 1 1 silver badge 6 6 bronze badges.

Add a comment. Active Oldest Votes. Improve this answer. You are good to go then! Mohammad Ali Mohammad Ali 2, 1 1 gold badge 8 8 silver badges 17 17 bronze badges. My 12vDC supply is two leisure batteries hooked up with two w solar panels on my narrowboat - voltage never drops below Then you should be good to go — Mohammad Ali. Sign up or log in Sign up using Google.