4 layers95 × 95 mm
Cube motherboard
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Task2 Buck LM2596
Assane401/Task2-Buck-Converter-LM2596Buck Converter PCB 12V→5V — LM2596S-5.0
- Size
- 80 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 4
- Pads
- 24
- Tracks, vias
- 45, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Mar 2026
- Updated
- 29 Mar 2026
Overview
Task2 Buck LM2596 is an open-source printed circuit board by Assane401, from the Assane401/Task2-Buck-Converter-LM2596 repository on GitHub. It is a 2-layer board of 80 × 40 mm with 8 parts on 4 nets, routed with 45 tracks and 0 vias.
It is built around the LM2596S-5.0. Its parts include 3 capacitors, 2 connectors, 1 IC, 1 diode and 1 inductor. It belongs with the power boards of this library.
Main components
1README
README.mdAuthor: Assane DIENG
Date: March 2026
Objective
Design a compact PCB for stepping down 12V to 5V using the LM2596S-5.0 switching regulator.
Specifications
| Parameter | Value |
|---|---|
| Input voltage | 12V |
| Output voltage | 5V regulated |
| Max output current | 3A |
| Switching frequency | 150 kHz |
| Efficiency | ~80% |
Repository Structure
Task2-Buck-Converter-LM2596/
├── KiCad/ # Schematic & PCB layout
├── Gerbers/ # Manufacturing files
├── BOM/ # Bill of Materials
└── Report/ # Design report (PDF/DOCX)
## Key Components
| Component | Reference | Value |
|-----------|-----------|-------|
| Switching regulator | LM2596S-5.0 | TO-263 |
| Inductor | L1 | 33 µH / 3.5A |
| Catch diode | D1 | 1N5825 5A/40V |
| Input capacitor | C1 | 470 µF / 50V |
| Output capacitor | C2 | 330 µF / 35V |
| Bypass capacitor | C3 | 100 nF |
## Tools Used
- **KiCad 9.0** — Schematic & PCB design
- **Git / GitHub** — Version control
## Contact
dieng.assane98@yahoo.com
For any questions or remarks, feel free to reach out.Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | +12 V | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | +5 V | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | 100 nF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 33 µH/ 3.5A | Inductor_THT:L_Toroid_Horizontal_D9.5mm_P15.00mm_Diameter10-5mm_Amidon-T37 | L1 |
| 1 | 330 µF/ 35 V | Capacitor_THT:CP_Radial_D12.5mm_P5.00mm | C2 |
| 1 | 470 µF/ 50V | Capacitor_THT:CP_Radial_D12.5mm_P5.00mm | C1 |
| 1 | 5A/ 40V | Diode_THT:D_DO-201AD_P12.70mm_Horizontal | D1 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
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Questions
How big is the Task2 Buck LM2596 PCB?
It measures 80 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Task2 Buck LM2596 use?
8 parts, built around the LM2596S-5.0. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Task2 Buck LM2596 KiCad files?
From the Assane401/Task2-Buck-Converter-LM2596 repository on GitHub, at the commit this page was made from: the board is Task2_Buck_LM2596.kicad_pcb and its schematic Task2_Buck_LM2596.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Task2 Buck LM2596 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Assane401 before reusing the design.