12 V to 5 V buck converter, 2 A
sabas0ba·kicad_skills·examples/buck-5v/reviewed/buck-5v.kicad_pcb
About the 12 V to 5 V buck converter, 2 A PCB
12 V to 5 V buck converter, 2 A is an open source PCB design by sabas0ba, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 88 × 38 mm, with 13 components from 12 distinct parts.
Other key parts include the LM2596SX-5.0/NOPB. By type, the board carries 4 capacitors, 3 diodes, 2 connectors, 1 IC, 1 fuse and 1 inductor.
It belongs with the power & battery designs in this gallery.
From the project
Container-based toolkit for circuit design: datasheets, SPICE simulation and KiCad review
Each project here exists twice, generated from one description by tools/makeexamples.py`:
A repository full of good designs proves only that good designs pass. The pair is the evidence: that the rules catch what they claim to catch, and that fixing what they report converges.
Gate acceptance is not production sign-off. These are worked examples, not hardware-validated reference designs. In particular, the FPGA still has decoupling-distance exceptions; signal return paths, application-specific power/thermal budgets and EMC remain engineering review and measurement work.

Main components on the 12 V to 5 V buck converter, 2 A
12 V to 5 V buck converter, 2 A bill of materials (BOM)
13 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM2596SX-5.0/NOPB LM2596S-5 Texas Instruments | TO-263-5_TabPin3 | U1 |
| 1 | 1729128 12V IN Phoenix Contact | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J1 |
| 1 | 1729128 5V OUT Phoenix Contact | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J2 |
| 1 | 0466003.NR 3A Littelfuse | Fuse_1206_3216Metric | F1 |
| 1 | SS34 Vishay | D_SMA | D1 |
| 1 | LTST-C170KGKT green Lite-On | LED_0805_2012Metric | D2 |
| 1 | SMAJ18A Littelfuse | D_SMA | D3 |
| 1 | SRR1260-330M 33u Bourns | L_12x12mm_H8mm | L1 |
| 1 | EEE-FK1V221AP 220u Panasonic | CP_Elec_8x10.5 | C1 |
| 2 | CL21B104KBCNNNC 100n Samsung | C_0805_2012Metric | C2, C4 |
| 1 | EEE-FK1C221P 220u Panasonic | CP_Elec_8x10.5 | C3 |
| 1 | RC0805FR-071KL 1k Yageo | R_0805_2012Metric | R1 |
12 V to 5 V buck converter, 2 A design files
The KiCad project lives in the sabas0ba/kicad_skills repository on GitHub; these links point at the commit this page was built from.
12 V to 5 V buck converter, 2 A: common questions
How big is the 12 V to 5 V buck converter, 2 A PCB?
The 12 V to 5 V buck converter, 2 A measures 88 × 38 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 12 V to 5 V buck converter, 2 A?
13 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the 12 V to 5 V buck converter, 2 A design files?
From the sabas0ba/kicad_skills repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 12 V to 5 V buck converter, 2 A design in my own project?
Yes, under the terms of its Apache-2.0 license, which sabas0ba chose for the repository.
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