5 open source boards using the LM4040DBZ-2.5
Real designs built with the LM4040DBZ-2.5, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
STM32Plinkyblack hwmidi jacks
plinkysynth
121.9 × 109.2 mm261 parts4LMIT221
Expander
43.2 × 128.3 mm68 parts2LCC-BY-NC-4.019
Therm temp 4 20 xmtr
ControlSystemIntegrators
50 × 50 mm45 parts4LMIT0
Expander just back
20.3 × 104.3 mm59 parts2LCC-BY-NC-4.019
Xyab
43.2 × 128.3 mm68 parts2LMIT221
The LM4040DBZ-2.5 in open source designs
The gallery holds 5 open source boards using the LM4040DBZ-2.5 from 3 GitHub repositories; a typical one measures about 43.2 × 109.2 mm and carries around 68 components.
60% are two-layer designs, the rest use four layers or more, and 60% carry an open source license.
The most starred is Plinkyblack hwmidi jacks by plinkysynth.
Parts used alongside the LM4040DBZ-2.5
Microcontrollers on boards using the LM4040DBZ-2.5
What boards using the LM4040DBZ-2.5 are built for
LM4040DBZ-2.5: common questions
Where can I find a LM4040DBZ-2.5 reference design?
Each of the 5 boards on this page is a real design using the LM4040DBZ-2.5. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the LM4040DBZ-2.5?
The DAC7554IDGS, HCPL-0631, SN74LVC1G17DBV and TL072 appear in the most repositories here.
Which microcontrollers do boards using the LM4040DBZ-2.5 use?
Most are built on STM32 (1).
How big is a typical board using the LM4040DBZ-2.5?
The median is 43.2 × 109.2 mm, and 60% are two-layer designs.
What is the most popular open source board using the LM4040DBZ-2.5?
By GitHub stars, Plinkyblack hwmidi jacks by plinkysynth, with 221 stars.
Can I simulate one of these boards using the LM4040DBZ-2.5 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.