No. 1. Your project is private so only you can see it therefore it is not possible to inspect your choices of inductor and capacitors to check that they are suitably rated for use in this type of SMPS circuit; 2. You have specified a fixed 12V output device and then you seem to be attempting to over-ride the fixed output voltage by connecting an external potential divider; 3. This external potential divider includes a trimpot which but which has the slider left unconnected so it forms an expensive and innaccurate 100k resistor;  4. You have not specified the input and output voltages so it is not clear if they are within the operating ranges of the device that you have chosen and attempted to set up; 5. You do not appear to have correctly used net labels to join your GND nets together; 6. LED4 appears to be connected to ground through a fuse which will blow (or the LED will blow, protecting the fuse) as soon as the output voltage appears; I recommend that you study and follow the design guidance in the **original** TI datasheet: [https://www.ti.com/lit/ds/symlink/lm2596.pdf](https://www.ti.com/lit/ds/symlink/lm2596.pdf)<br> <br>

Hello friend thanks for your comments. The VIN is of 12V and the VOUT that I want to reach is of 6V I make this modifications to the circuit: -The pot is out and instead I put an 10K resistor; This was done sonce the VOUT I want to have is of 6V. -The 5V led is now being protected by a resistor of 390OHM. -About the GND, I just put the label to make a representation 

@gio-natale, You can join nodes together using wires or by attaching net labels not by simply writing some text next to them. The fuse in series with the LED serves no purpose. Remove it. When you do Convert to PCB... the two wires that you want to be ground will not be connected together. Also you have no input and output connectors (physical or through hole pads for wires to solder into). If you want a 6V output why are you not using an adjustable output version of the LM2596? Your project is still not public so no one can comment on the specifications of the 47uH inductor and the 220uF caps.

The link to the pdf copy of the TI datasheet seems to be broken. There's an online version at: [https://www.ti.com/document-viewer/LM2596/datasheet/GUID-543FB437-AA18-40C9-BB5B-D0156A2D62F0#TITLE-SNVS124SNVS124424](https://www.ti.com/document-viewer/LM2596/datasheet/GUID-543FB437-AA18-40C9-BB5B-D0156A2D62F0#TITLE-SNVS124SNVS124424)<br> <br> and the ONSEMI version: [https://www.onsemi.com/pdf/datasheet/lm2596-d.pdf](https://www.onsemi.com/pdf/datasheet/lm2596-d.pdf)

@gio-natale, You can simulate your design now: [https://oshwlab.com/andyfierman/lm2596-demo-simulation](https://oshwlab.com/andyfierman/lm2596-demo-simulation)

"...the VOUT I want to have is of 6V." Note that you cannot "adjust" the output of an LM2596 12V fixed output regulator down to 6V just by applying an external potential divider. If they have any effect at all, your pair of 10k resistors would in fact increase the output voltage set point to anywhere between 24V and some much higher value. Obviously this being a step down converter supplied from 12V, the circuit would not work in any meaningful way. I recommend that you select the LM2596_ADJ then study and follow the design guidelines in the LM2596 datasheet.

FYI, there's higher efficiency, smaller, and cheaper, regulators out there which you may be interested in. But I guess if you are just experimenting, This may be a good way to test the waters.