I am making a power supply to use in my car for a dash cam. I found this on ebay for cheap but I have no idea what an "EN Port" is. This is just a step down voltage regulator. I emailed the seller in China and he said it is an "enable port". I still don't know what he is talking about. I just want to input 12VDC and output 5VDC. Any ideas?

 

king a power supply to use in my car for a dash cam. I found this on ebay for cheap but I have no idea what an "EN Port" is. This is just a step down voltage regulator. I emailed the seller in China and he said it is an "enable port". I still don't know what he is talking about. I just want to input 12VDC and output 5VDC. Any ideas?

That would be Enable. It turns the board on. It probably needs to be pulled high.

 

It switches the board on and off. Sounds like you need it on all the time so EN should be wired to GND or to +12V input. You can use trial and error to find out which if there is no information.

 

How many amps ( max ) does your Dash Cam require?

 

Some modules have the enable high and needs ground to shut off...

 

Do you have a ebay link to the board?
Max.

 

Hello,

In the following thread there is a comparable board used:
https://forum.allaboutcircuits.com/...-the-world-do-you-people-solder-these.157650/

Bertus

 

tie EN to Vin via a 100k resistor and your powered.

 

Here it is in Chin-English - already enabled with a pull up - ground to turn off the converter.

Enable control:high level work, the low level not work, the high level of 2-5V, the low level of about 0V.Default internal pull up to the input positive

https://www.aliexpress.com/item/DC-...n-Module-Integrated-Circuits/32863705813.html