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M3PSU - DC/DC 5V Board

cuspaceflight·m3-avionics·artifacts/r2_panel/r2_panel.kicad_pcb

M3PSU - DC/DC 5V Board layout, top view — open source STM32 board by cuspaceflight

About the M3PSU - DC/DC 5V Board

M3PSU - DC/DC 5V Board is an open source STM32 PCB design by cuspaceflight, published on GitHub. It is a 2-layer board measuring 39.5 × 39.5 mm, with 140 components from 58 distinct parts.

Its main chip is the STM32F405RxTx, from the STM32 family. Other key parts include the NCP380, NC7SZ04, CS2100-CP, SL18860DC and MAX_M8Q. By type, the board carries 42 resistors, 35 capacitors, 16 connectors, 12 transistors, 11 ICs and 11 diodes.

From the project

Martlet 3 Avionics

This repository contains all the avionics for Martlet 3, including system design, documentation, schematics, PCBs, and firmware.

Main components on the M3PSU - DC/DC 5V Board

NCP380NC7SZ04CS2100-CPSL18860DCMAX_M8QSN74LVC1G0832STM32F405RxTxMCP2562Si4461NCP4620MICROSD-RESCUE-main

M3PSU - DC/DC 5V Board bill of materials (BOM)

140 components, 58 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NCP380
IC1
1
NC7SZ04
IC2
1
CS2100-CP
IC3
1
SL18860DC
IC4
1
MAX_M8Q
IC5
1
SN74LVC1G0832
IC6
1
STM32F405RxTx
IC101
1
MCP2562
IC102
1
Si4461
IC201
1
NCP4620
U1
1
MICROSD-RESCUE-main
U2
6
NFET_GDS
Q1, Q2, Q3, Q4, Q9, Q11
6
PFET_GDS
Q5, Q6, Q7, Q8, Q10, Q12
1
TCXO
Y1
1
PYRO5
J1
2
WEST BOT
J2, J102
1
PYRO6
J3
2
EAST BOT
J4, J104
1
PYRO7
J5
1
PYRO8
J6
Show 38 more
QtyPartRefs
1
5v_CAM
J7
1
ARM
J8
1
PWR
J9
1
CHARGE
J10
1
WEST TOP
J101
1
EAST TOP
J103
2
COAX
P101, P201
4
TESTPAD
TP1, TP2, TP3, TP4
9
ESD_DIODE
D1, D2, D3, D4, D5, D6, D7, D8 +1
1
RED
D101
1
GRN
D102
3
91nH
L1, L2, L3
1
120nH
L201
1
20nH
L202
1
24nH
L203
1
8.2nH
L204
1
6.8nH
L205
16
100n
C1, C4, C6, C9, C10, C15, C16, C17 +8
5
1u
C2, C3, C7, C8, C106
2
1n
C5, C11
1
220p
C12
1
2.2u
C13
1
10n
C14
1
4u7
C103
2
2u2
C110, C111
1
100p
C201
1
3p
C203
1
22p
C204
1
1p
C205
2
5.6p
C206, C207
1
10
R1
1
110k
R2
7
1M
R3, R35, R36, R37, R38, R39, R40
12
10k
R4, R5, R6, R7, R8, R21, R22, R23 +4
12
33k
R9, R10, R11, R12, R13, R14, R15, R16 +4
6
10m
R17, R18, R19, R20, R31, R34
1
5k49
R26
2
100
R102, R103

M3PSU - DC/DC 5V Board design files

The KiCad project lives in the cuspaceflight/m3-avionics repository on GitHub; these links point at the commit this page was built from.

M3PSU - DC/DC 5V Board: common questions

What microcontroller does the M3PSU - DC/DC 5V Board use?

The M3PSU - DC/DC 5V Board is built around the STM32F405RxTx, from the STM32 family.

How big is the M3PSU - DC/DC 5V Board?

The M3PSU - DC/DC 5V Board measures 39.5 × 39.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the M3PSU - DC/DC 5V Board?

140 components, from 58 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 M3PSU - DC/DC 5V Board design files?

From the cuspaceflight/m3-avionics repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the M3PSU - DC/DC 5V Board design in my own project?

The repository has no license, so all rights stay with cuspaceflight. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the M3PSU - DC/DC 5V Board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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