Buck
About the Buck PCB
Buck is an open source PCB design by fberni21, published on GitHub. It is a 2-layer board measuring 88.4 × 81 mm, with 68 components from 39 distinct parts.
Other key parts include the TL431LP, TL074, L7809, IR2104 and TL072. By type, the board carries 23 resistors, 15 capacitors, 13 test points, 6 ICs, 3 diodes and 2 transistors.
It belongs with the power & battery designs in this gallery.
From the project
FIUBA - Electrónica - Taller de Diseño de Circuitos Electrónicos
Desarrollo e informes del trabajo grupal de la materia Taller de Diseño de Circuitos Electrónicos.
Main components on the Buck
Buck bill of materials (BOM)
68 components, 39 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL431LP LM393 | DIP-8_W7.62mm_Socket_LongPads | U1 |
| 1 | TL074 | DIP-14_W7.62mm_Socket_LongPads | U2 |
| 1 | L7809 | to-220_pad_grandes | U3 |
| 1 | IR2104 | DIP-8_W7.62mm_Socket_LongPads | U4 |
| 1 | TL431LP | Custom_TO-92_Wide | U6 |
| 1 | TL072 | DIP-8_W7.62mm_Socket_LongPads | U7 |
| 2 | BC547 IRFZ44N | to-220_pad_grandes | Q1, Q2 |
| 2 | SCREW_TERMINAL_01X02 Screw_Terminal_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1, J2 |
| 1 | Fuse | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | Jumper_2_Bridged | TestPoint_2Pads_Pitch5.08mm_Drill1.3mm | JP1 |
| 1 | Jumper_2_Bridged | TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP2 |
| 13 | TestPoint | TestPoint_Bridge_Pitch2.54mm_Drill1.3mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 +5 |
| 1 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 1N4742 (12v 1W) | D_A-405_P7.62mm_Horizontal | D2 |
| 1 | LED | LED_D5.0mm | D3 |
| 1 | 350uH | carrete_ee30 | L1 |
| 1 | 33p | C_disc_pads_grandes | C1 |
| 6 | 100n | C_disc_pads_grandes | C2, C4, C9, C10, C11, C15 |
| 2 | 10u | CP_Radial_D4.0mm_P2.00mm | C3, C5 |
| 2 | 10uF | CP_Radial_D5.0mm_P2.50mm | C6, C13 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 1u | CP_Radial_D4.0mm_P2.00mm | C7, C8 |
| 1 | 820uF | CP_Radial_D10.0mm_P3.80mm | C12 |
| 1 | 100n | C_Disc_D8.0mm_W5.0mm_P7.50mm | C14 |
| 3 | 1k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R15, R18 |
| 2 | 100k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R4 |
| 1 | 33k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 100 100k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 470 100k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 100 1k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 1 | 680 39k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
| 1 | 10 | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9 |
| 1 | 5K6 10 | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
| 1 | 2k7 | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11 |
| 1 | 6K2 10k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12 |
| 5 | 10k | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13, R19, R20, R21, R23 |
| 1 | 100R 1.5W | R_Axial_DIN0614_L14.3mm_D5.7mm_P20.32mm_Horizontal | R14 |
| 1 | 0R | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R16 |
| 1 | DNP | Custom _pads_R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R17 |
| 1 | 100R 1W | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R22 |
Buck design files
The KiCad project lives in the fberni21/taller-circuitos repository on GitHub; these links point at the commit this page was built from.
Buck: common questions
How big is the Buck PCB?
The Buck measures 88.4 × 81 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Buck?
68 components, from 39 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Buck design files?
From the fberni21/taller-circuitos repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Buck design in my own project?
The repository has no license, so all rights stay with fberni21. Use it as a reference, and ask the author before reusing the design.
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