Buck
About the Buck PCB
Buck is an open source PCB design by ieee-cas-unmsm, published on GitHub. It is a 2-layer board measuring 55.9 × 95.5 mm, with 26 components from 23 distinct parts.
Other key parts include the TL494. By type, the board carries 13 resistors, 4 capacitors, 3 connectors, 2 transistors, 1 IC and 1 diode.
It belongs with the power & battery designs in this gallery.
Main components on the Buck
Buck bill of materials (BOM)
26 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL494 | DIP-16_W7.62mm | U2 |
| 1 | BD911 | TO-220-3_Vertical | Q1 |
| 1 | MJE15031 | TO254P1042X498X2993-3 | Q2 |
| 3 | Screw_Terminal_01x02 | TerminalBlock_Wuerth_691311400102_P7.62mm | J1, J2, J3 |
| 1 | 10k | Potentiometer_ACP_CA9-V10_Vertical | RV1 |
| 1 | D_Schottky | D_A-405_P7.62mm_Horizontal | D1 |
| 1 | 140uH | IND_HCTI-68-7.7 | L2 |
| 1 | 220uF | CP_Axial_L10.0mm_D4.5mm_P15.00mm_Horizontal | C1 |
| 1 | 2.2 uF | CP_Axial_L10.0mm_D4.5mm_P15.00mm_Horizontal | C2 |
| 1 | 100 uF | CP_Axial_L10.0mm_D4.5mm_P15.00mm_Horizontal | C3 |
| 1 | 1 nF | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C4 |
| 1 | 51k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 2 | 5.1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R12 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 20k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 9.1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 51k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 1 | 270 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
| 1 | 47 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 1 | 5.1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11 |
| 1 | 510 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13 |
Buck design files
The KiCad project lives in the ieee-cas-unmsm/open-day-oct 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 55.9 × 95.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Buck?
26 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the Buck design files?
From the ieee-cas-unmsm/open-day-oct repository on GitHub, which has the KiCad layout and the schematic; 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 ieee-cas-unmsm. Use it as a reference, and ask the author before reusing the design.
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