TPS5430 Buck 5V
About the TPS5430 Buck 5V PCB
TPS5430 Buck 5V is an open source PCB design by Kraad25, published on GitHub. It is a 2-layer board measuring 37 × 23 mm, with 16 components from 14 distinct parts.
Other key parts include the TPS54308. By type, the board carries 6 capacitors, 6 resistors, 2 connectors, 1 IC and 1 inductor.
It belongs with the power & battery designs in this gallery.
From the project
12V-to-5V synchronous buck converter (TPS54308), designed in KiCad
A 12V-to-5V synchronous buck converter built around the TI TPS54308, designed in KiCad.
Schematic and component values derived directly from the TPS54308 datasheet.
- Controller: TPS54308 (4.5V-28V input, 3A synchronous buck converter, SOT-23-6) - Input: 12V DC via barrel jack - Output: 5V, 3A via 2-pin header - Switching frequency: 350kHz (fixed, internal) - Layers: 2-layer - Note: Found and corrected a unit typo in the datasheet's Table 7-2 (C6 listed as µF, confirmed via TI's own body text and the compensation equation to actually be pF)
Main components on the TPS5430 Buck 5V
TPS5430 Buck 5V bill of materials (BOM)
16 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS54308 | SOT-23-6 | U1 |
| 1 | 694103107102 Wurth Elektronik | J_Wurth_WR-DC_694103107102 | J1 |
| 1 | Conn_01x02_Pin | PinHeader_1x02_P2.00mm_Vertical | J2 |
| 1 | 15uH | L_1008_2520Metric | L1 |
| 1 | 10uF | C_0805_2012Metric | C1 |
| 2 | 0.1uF | C_0805_2012Metric | C2, C3 |
| 2 | 22uF | C_0805_2012Metric | C4, C5 |
| 1 | 75pF | C_0805_2012Metric | C6 |
| 1 | 49.9 | R_0805_2012Metric | R1 |
| 1 | 100k | R_0805_2012Metric | R2 |
| 1 | 13.3k | R_0805_2012Metric | R3 |
| 1 | 511k | R_0805_2012Metric | R4 |
| 1 | 105k | R_0805_2012Metric | R5 |
| 1 | 2k | R_0805_2012Metric | R6 |
TPS5430 Buck 5V design files
The KiCad project lives in the Kraad25/TPS5430_Buck_5V repository on GitHub; these links point at the commit this page was built from.
- LayoutTPS5430_Buck_5V.kicad_pcb
- SchematicTPS5430_Buck_5V.kicad_sch
TPS5430 Buck 5V: common questions
How big is the TPS5430 Buck 5V PCB?
The TPS5430 Buck 5V measures 37 × 23 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TPS5430 Buck 5V?
16 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the TPS5430 Buck 5V design files?
From the Kraad25/TPS5430_Buck_5V repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the TPS5430 Buck 5V design in my own project?
The repository has no license, so all rights stay with Kraad25. Use it as a reference, and ask the author before reusing the design.
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