2 layers40.3 × 39 mm
2 layers42.5 × 30.5 mm
DLC
gokul-rm/PCBFor any questions or collaborations, contact me at [gokul567gd@gmail.com].
- Size
- 42.5 × 30.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 17
- Pads
- 43
- Tracks, vias
- 117, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Mar 2025
- Updated
- 21 Mar 2025
Overview
DLC is an open-source printed circuit board by gokul-rm, from the gokul-rm/PCB repository on GitHub. It is a 2-layer board of 42.5 × 30.5 mm with 13 parts on 17 nets, routed with 117 tracks and 0 vias.
It is built around the ATTINY85-20SU, LM1117DT-5.0 and MBR0520. Its parts include 5 connectors, 3 resistors, 2 capacitors, 2 ICs and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATTINY85-20SU
SOIC-8-208mil-40℃~+85℃ 10bit 2.7V~5.5V 20MHz 512Byte 512Byte 6 8 Bit 8KB AVR Built-in FLASH SOIC-8-208mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
LM1117DT-5.0
TO-2520.003%Vout 0℃~+125℃@(Tj) 1 1.3V@(800mA) 10mA 15V 5V 75dB@(120Hz) 800mA Fixed Over Current Protection、Thermal Shutdown Positive TO-252 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MBR0520
SOD-123-55℃~+150℃ 20V 450mV@500mA 5.5A 500mA Independent SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
README
README.mdView this project on CADLAB.io.
PCB Projects
Overview
This repository contains various PCB designs created using KiCad as part of my learning journey. The projects include different types of power converters, sensor modules, and other embedded system circuits.
Included Designs
- Buck Converter - Step-down DC-DC converter
- Boost Converter - Step-up DC-DC converter
- Linear Regulators - Voltage regulation circuits
- Power Management Circuits - Various power distribution designs
- Sensor Modules - PCB layouts for different sensors
Project Structure
📂 project_root/
├── 📁 buck_converter/ # Buck converter design files
├── 📁 boost_converter/ # Boost converter design files
├── 📁 regulators/ # Linear regulator PCB files
├── 📁 sensor_modules/ # Various sensor module PCB designs
├── 📁 gerber_files/ # Manufacturing-ready Gerber files
├── 📁 bom/ # Bill of Materials (BOM)
├── 📁 3d_models/ # 3D models for components
├── 📁 documentation/ # Datasheets, design notes, etc.
├── README.md # Project overview (this file)Installation & Usage
- Clone the repository:
sh git clone https://github.com/yourusername/your-pcb-repo.git - Open the project in KiCad:
- Open KiCad and load the required
.profile. - Access the schematic editor and PCB layout as needed.
- Open KiCad and load the required
- Generate Gerber files for manufacturing:
- Use KiCad's "Plot" function to export Gerber files.
Bill of Materials (BOM)
Each project folder contains a BOM listing all components used in the design.
Contribution
Feel free to fork this repository and submit pull requests for improvements or modifications.
License
This project is licensed under the MIT License - see the LICENSE file for details.
Author
Gokula Kannan R
For any questions or collaborations, contact me at [gokul567gd@gmail.com].
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1, J4, J5 |
| 3 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3 |
| 2 | C | Capacitor_THT:C_Axial_L5.1mm_D3.1mm_P12.50mm_Horizontal | C1, C2 |
| 1 | ATtiny85-20S | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U1 |
| 1 | AVR-ISP-6 | Connector_IDC:IDC-Header_2x03_P2.54mm_Horizontal | J3 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J2 |
| 1 | LM1117DT-5.0 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U2 |
| 1 | MBR0520 | Diode_SMD:D_SOD-123 | D1 |
Questions
How big is the DLC PCB?
It measures 42.5 × 30.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DLC use?
13 parts, built around the ATTINY85-20SU, LM1117DT-5.0 and MBR0520. 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 DLC KiCad files?
From the gokul-rm/PCB repository on GitHub, at the commit this page was made from: the board is DLC/DLC.kicad_pcb and its schematic DLC/DLC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DLC design in my own project?
Its repository states no licence, so its author keeps all rights: ask gokul-rm before reusing the design.
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