12V DC > 5V DC options

Other Hardware General Electronics
1

I have these three converters in my box, seemingly the CA-1235 looks best (gives 3A at 5V).

I want to power either a Pi Zero W or ESP8266 from a 12V power supply as part of my project.

Any advice / other option would be appreciated.

IMG_0154
IMG_01541555×784 251 KB

2

A Schematic or Drawing of your project.
A Brief Explanation of the project.

What does "BEST" Mean ?

see.. this is why we need a schematic,
So.. You're planning to use a 12V supply and connect it to an L.L.C. that is rated for a Max
of 5V ??
like i said "what does BEST ,mean ?"

Let's see the project

1 Like
3

I agree
Don't use anything where you have to adjust the output voltage with a trim pot

1 Like
4

So you're just thinking biggest current is "best"? :thinking:

So how much current do you actually need?

Note that switch-mode supplies (which these appear to be) work best at "full" load - so one that's over-specified on current might actually be worse!

Other things to consider include:

  • what is the tolerance on the input side?
  • efficiency - especially if your 12V is a battery
  • how "clean" is the output?
  • how well-regulated is the output?
5

I use the MT3068 units a lot.
A voltmeter is required to set them up.
Always "dial it in" before applying it to a project.

2 Likes
6

I started a few years back just buying SEPIC converters, it has saved me from some problems in the past when the 12V dips below about 7V.

7

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.