Power Board
esl-epfl·X-MODs·Module_Boards/Power_Board/Power_Board.kicad_pcb
About the Power Board
Power Board is an open source PCB design by esl-epfl, published on GitHub. It is a 6-layer board measuring 14.9 × 12.6 mm, with 29 components from 13 distinct parts.
Other key parts include the MAX17262REWL+T and MAX77654MENV+T. By type, the board carries 16 capacitors, 10 resistors, 2 ICs and 1 inductor.
It belongs with the wearables designs in this gallery.
From the project
Modular hardware platform based on the RISC-V X-HEEP family architecture developed at ESL, targeting ultra-low-power consumption and miniaturization, facilitating the creation of wearable devices for clinical trials
A collection of compact, power-efficient PCB modules designed for rapid prototyping and development of wearable healthcare devices, with a focus on biosignal acquisition.
X-MODs provides a modular hardware approach that bridges the gap between fully custom designs and off-the-shelf solutions. The system consists of four specialized modules and their corresponding debug boards, enabling quick prototyping while maintaining the small form factor required for wearable applications.

Main components on the Power Board
Power Board bill of materials (BOM)
29 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MAX17262REWL+T | WLCSP-9_1.468x1.448mm_P0.4mm | U1 |
| 1 | MAX77654MENV+T | WLCSP-30_2.788x2.338mm_P0.4mm | U2 |
| 1 | DFE201612E-1R5M=P2 1u50 | L0806 | L1 |
| 1 | GRM155R71A104JA01D 100n 10V | C0402 | C1 |
| 1 | GRM155R60J474KE19D 470n 6V3 | C0402 | C2 |
| 2 | GRM188R61E475KE11D 4u70 25V | C0603 | C3, C4 |
| 5 | GRM188R61A226ME15D 22u0 10V | C0603 | C5, C6, C7, C8, C9 |
| 1 | GRM15XR71C332KA86D 3n30 16V | C0402 | C10 |
| 4 | C0402C105K8PACTU 1u00 10V | C0402 | C11, C14, C15, C16 |
| 2 | GRM155R61C225KE44D 2u20 16V | C0402 | C12, C13 |
| 1 | CRCW040210K0FKEDHP 10K0 | R0402 | R1 |
| 7 | RK73Z1ETTP 0R00 | R0402 | R2, R5, R6, R7, R10, R11, R12 |
| 2 | CRCW0402100KFKEDC 100K | R0402 | R8, R9 |
Power Board design files
The KiCad project lives in the esl-epfl/X-MODs repository on GitHub; these links point at the commit this page was built from.
Power Board: common questions
How big is the Power Board?
The Power Board measures 14.9 × 12.6 mm, has 6 copper layers and is 0.8 mm thick.
How many components are on the Power Board?
29 components, from 13 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 Power Board design files?
From the esl-epfl/X-MODs 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 Power Board design in my own project?
The repository has no license, so all rights stay with esl-epfl. Use it as a reference, and ask the author before reusing the design.
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