ESP8266 Community Forum

- Fri Jun 09, 2017 8:57 am #66944 Hello, i'm looking for eagle files for reliable and very simple DC-DC step down for ESP12F .. i want to integrate it on current PCB, it is ok if it is SMD variant too but as little components as possible .. max input voltage should be 16V, however, it's usually 9V or 12V... thnx.

- Fri Jun 09, 2017 10:25 am #66949 I have used the "Mini360" power supply in a number of commercial products. I have been using it as a through hole part although I don't see why it couldn't be used as a surface mount module. It is cheaper for us to buy the complete module than to buy the parts. We remove the variable resistor and solder on it a fixed resistor to set the output voltage.

If you don't want to use the module then you could source the components and solder them directly to your pcb. It is a nice chip.

https://www.aliexpress.com/item/1PCS-Mi ... 79417.html

- Fri Jun 09, 2017 11:52 am #66955 I'm using that DC-DC too on several projects.
If you wish to build it your self, the specs are providing clear schematic :
https://www.monolithicpower.com/Product ... ductID=238

- Fri Jun 09, 2017 8:56 pm #66967 Thnx.

I wish it is possible to buy just parts for this price. It's simply too expensive.

You are right, it's so simple to mount it on PCB but i wish to pack it on the board.

btw. I also wish to have a sketch of this... unfortunately i can't find it for Mini360.

p.s. LM1117 is good enough but the end project will be covered with hot glue so, i'm afraid the heat can damage the glue an the project ...