2 layers65 × 65 mm LMR14050SDDA reference, the printed circuit board in 3D

LMR14050SDDA reference

Let's make a Raspberry Pi cluster similar to real data centers!

Size: 65 × 65 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 49
Nets: 36
Pads: 198
Tracks, vias: 195, 44
Pours: 8
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 12 Mar 2020
Updated: 28 Mar 2021

Overview

LMR14050SDDA reference is an open-source printed circuit board by luxas, from the luxas/special-computing-machine repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 65 × 65 mm with 49 parts on 36 nets, routed with 195 tracks and 44 vias.

It is built around the LMR14050SDDA and IRLML6344TRPBF. Its parts include 16 capacitors, 10 connectors, 9 resistors, 5 diodes and 2 ICs.

Main components

README

README.md

special-computing-machine

Let's make a Raspberry Pi cluster similar to real data centers!

3D models

The 3D model files in hardware/models include the following models by external authors, licensed for non-commercial use from GrabCAD.

Parts

Qty	Value	Footprint	References
6	47uF	Capacitor_SMD:C_1210_3225Metric	C4, C7, C8, C14, C15, C16
4	100n	Capacitor_SMD:C_0603_1608Metric	C2, C3, C10, C12
4	4.7uF	Capacitor_SMD:C_1206_3216Metric	C5, C6, C11, C13
4	MH	MountingHole:MountingHole_3.2mm_M3	H1, H2, H3, H4
2	100k	Resistor_SMD:R_0603_1608Metric	R2, R5
2	17.8k	Resistor_SMD:R_0603_1608Metric	R3, R6
2	22nF	Capacitor_SMD:C_0603_1608Metric	C1, C9
2	3.3k	Resistor_SMD:R_0805_2012Metric	R7, R8
2	8.2uH	Inductor_SMD:L_Wuerth_WE-PD-Typ-LS	L1, L2
2	84.5k	Resistor_SMD:R_0603_1608Metric	R1, R4
2	Conn_EN	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J2, J7
2	D	Package_TO_SOT_SMD:TO-277A	D1, D2
2	LED	LED_SMD:LED_0805_2012Metric	D3, D4
2	LMR14050SDDA	Package_SO:Texas_HSOP-8-1EP_3.9x4.9mm_P1.27mm_ThermalVias	U1, U2
2	USB_C_Receptacle_USB2.0	Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12	J1, J10
2	V_in alt	TerminalBlock:TerminalBlock_bornier-2_P5.08mm	J4, J8
2	V_out alt	TerminalBlock:TerminalBlock_bornier-2_P5.08mm	J5, J9
1	100K	Resistor_SMD:R_0603_1608Metric	R9
1	10V	Diode_SMD:D_SOD-323	D5
1	DC_in	Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002	J6
1	IRLML6344TRPBF	Package_TO_SOT_SMD:SOT-23	Q1
1	ground holes	Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical	J3

Questions

How big is the LMR14050SDDA reference PCB?

It measures 65 × 65 mm and has 2 copper layers, 1.6 mm thick.

What parts does the LMR14050SDDA reference use?

49 parts, built around the LMR14050SDDA and IRLML6344TRPBF. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the LMR14050SDDA reference KiCad files?

From the luxas/special-computing-machine repository on GitHub, at the commit this page was made from: the board is hardware/schematics/psu/LMR14050SDDA_reference/LMR14050SDDA_reference.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the LMR14050SDDA reference design in my own project?

Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/luxas-special-computing-machine" title="LMR14050SDDA reference in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/luxas-special-computing-machine.jpg" alt="LMR14050SDDA reference" width="1200" height="900">

A picture that opens the board, for a README

[![LMR14050SDDA reference](https://pcbkit.io/embed/boards/luxas-special-computing-machine.jpg?size=s)](https://pcbkit.io/boards/luxas-special-computing-machine)

Source

Repository: luxas/special-computing-machine
Board file: hardware/schematics/psu/LMR14050SDDA_reference/LMR14050SDDA_reference.kicad_pcb
Commit: a574c68
Licence: Apache-2.0

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