LTC 3639 KiCad

I want to make a diagram in KiCad taking into account the block diagram below in this post of LTC3639 from the datasheet (High Efficiency, 150V 100mA Synchronous Step-Down Regulator), but I don’t do it very well,does anyone know how to do it?

What do you mean by “taking into account”? Do you want to replicate that? Or use some information from it – in which way? Or just add block diagram graphics inside a symbol?

KiCad isn’t made for block diagrams, and it’s not very good at drawing graphics.

The use of Kicad (or any other EDA tool) is to finally carry out a design that will become a printed circuit board (PCB) with its components and so on…It can also be used to make simulations but I think it is not what you need.

If your intention is simply to make a diagram like the one you have posted I suggest you to use tools like this: Don’t short circuit: use draw.io for your electrical diagrams - draw.io

Yes ,i want to replicate this schematic in KiCad,with the same symbols ,connections,components etc

It describes the inner block structure of a component. The main purpose of a schematic in KiCad is to represent a circuit where each component is a “black box”, i.e. their inner structure or functioning isn’t described in the schematic. If you need a block diagram, you should use something else, like gschelotto told.

On the other hand, it is possible to stretch the limits of KiCad and draw symbols for blocks and use plain graphics. However, I’m not sure how useful that would be. It’s more difficult than necessary, and you don’t get any benefit from KiCad and its schematic.

What do you intend to do with the result, if you achieve it? In some cases it may be fair use if you just quote with attribution the diagram in the datasheet.

I wonder what software application chip manufacturers use to create block diagrams of their chips in datasheets in general.

Visio or Inkscape would be better to represent the block diagram instead of Kicad
Why? Kicad is a schematic capture tool and thus it will have connections for everything needed to complete an IC’s need. A block diagram doesn’t need to show that.

I would say that they are all proprietary tools and for the exclusive use of these companies since the shape and style of their diagrams are part of their product. That’s why (after few years) just a glance is enough to recognize if it is a chip of ADI, TI, Microchip,…

Well, just do it. Most of the parts are in the KiCAD libraries already.
You’ll have to create the “regulated battery” in the top right corner yourself, as well as the box in the middle and the three-input comparator.

This site is a volunteer exchange of knowledge around KiCAD, not a free engineering service.

IC block diagrams are only representations, they do not accurately describe the internal circuits for simulation.