2 layers87.2 × 79.2 mm
Buck
fberni21/taller-circuitos
FIUBA - Electrónica - Taller de Diseño de Circuitos Electrónicos
48 parts1
2 layers88.4 × 81 mm
FIUBA - Electrónica - Taller de Diseño de Circuitos Electrónicos
- Size
- 88.4 × 81 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 34
- Pads
- 178
- Tracks, vias
- 393, 10
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 24 Aug 2025
- Updated
- 9 Dec 2025
Overview
Buck is an open-source printed circuit board by fberni21, from the fberni21/taller-circuitos repository on GitHub. It is a 2-layer board of 88.4 × 81 mm with 69 parts on 34 nets, routed with 393 tracks and 10 vias.
It is built around the IR2104PBF, TL072 and L7809, with the LM393 and IRFZ44N among its other parts. Its parts include 23 resistors, 15 capacitors, 6 ICs, 3 diodes and 2 transistors. It belongs with the power boards of this library.
Main components
5
IR2104PBF
PDIP-8-40℃~+125℃ 100ns 10V~20V 130mA 150ns 150uA 2 270mA 50ns 680ns Enable shutdown、Interleaved conduction protection、Dead-time control Half-Bridge IGBT、MOSFET PDIP-8 Gate Drivers ROHSInfineon TechnologiesGate Drivers
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
L7809
TO-220-20℃~+125℃@(Tj) 1 1.5A 2V@(1.0A) 35V 58uV 5mA 66dB@(120Hz) 9V Fixed Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSPUOLOPVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsLM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators
IRFZ44N
TO-220110pF 130W 18mΩ@10V 39nC@10V 430pF 4V 50A 60V 880pF N-Channel TO-220 MOSFETs ROHSOSENMOSFETs
README
README.mdTaller de Diseño de Circuitos Electrónicos
Desarrollo e informes del trabajo grupal de la materia Taller de Diseño de Circuitos Electrónicos.
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | TestPoint | TestPoint:TestPoint_Bridge_Pitch2.54mm_Drill1.3mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13 |
| 6 | 100n | library:C_disc_pads_grandes | C2, C4, C9, C10, C11, C15 |
| 6 | 10k | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12, R13, R19, R20, R21, R23 |
| 4 | 100k | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R4, R5, R6 |
| 4 | 1k | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R7, R15, R18 |
| 2 | 10 | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R10 |
| 2 | 10u | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C3, C5 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C6, C13 |
| 2 | 1u | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C7, C8 |
| 2 | IRFZ44N | library:to-220_pad_grandes | Q1, Q2 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1, J2 |
| 1 | 0R | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R16 |
| 1 | 100R 1.5W | Resistor_THT:R_Axial_DIN0614_L14.3mm_D5.7mm_P20.32mm_Horizontal | R14 |
| 1 | 100R 1W | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R22 |
| 1 | 100n | Capacitor_THT:C_Disc_D8.0mm_W5.0mm_P7.50mm | C14 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 1N4742 (12v 1W) | Diode_THT:D_A-405_P7.62mm_Horizontal | D2 |
| 1 | 2k7 | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11 |
| 1 | 33k | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 33p | library:C_disc_pads_grandes | C1 |
| 1 | 350uH | library:carrete_ee30 | L1 |
| 1 | 39k | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
| 1 | 820uF | Capacitor_THT:CP_Radial_D10.0mm_P3.80mm | C12 |
| 1 | DNP | library:Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R17 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | IR2104 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U4 |
| 1 | Jumper_2_Bridged | TestPoint:TestPoint_2Pads_Pitch5.08mm_Drill1.3mm | JP1 |
| 1 | Jumper_2_Bridged | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP2 |
| 1 | L7809 | library:to-220_pad_grandes | U3 |
| 1 | LED | LED_THT:LED_D5.0mm | D3 |
| 1 | LM393 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U1 |
| 1 | LOGO | library:tux! | G*** |
| 1 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U7 |
| 1 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U2 |
| 1 | TL431LP | library:Custom_TO-92_Wide | U6 |
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Questions
How big is the Buck PCB?
It measures 88.4 × 81 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Buck use?
69 parts, built around the IR2104PBF, TL072, L7809 and LM393. 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 Buck KiCad files?
From the fberni21/taller-circuitos repository on GitHub, at the commit this page was made from: the board is placas/buck/buck/buck.kicad_pcb and its schematic placas/buck - lazo abierto/buck/buck.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Buck design in my own project?
Its repository states no licence, so its author keeps all rights: ask fberni21 before reusing the design.