2 layers100 × 93.8 mm
FlatSat Breakout
UChicago-Space-Program/pulse-hardware
This is the central repository for documents related to PULSE-A hardware development.
65 parts1
4 layers90.2 × 95.9 mm
PowerDistribution
UChicago-Space-Program/pulse-hardware1This is the central repository for documents related to PULSE-A hardware development.
- Size
- 90.2 × 95.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 188
- Nets
- 222
- Pads
- 804
- Tracks, vias
- 993, 218
- Pours
- 55
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Sep 2023
- Updated
- 5 Nov 2026
Overview
PowerDistribution is an open-source printed circuit board by UChicago-Space-Program, from the UChicago-Space-Program/pulse-hardware repository on GitHub. It is a 4-layer board of 90.2 × 95.9 mm with 188 parts on 222 nets, routed with 993 tracks and 218 vias.
It is built around the STM32L431CBT6, TCAN337GD and MR25H256ACDF, with the TMP36FSZ, LT86102UX and LTC1477CS8#PBF among its other parts. Its parts include 61 resistors, 51 capacitors, 22 ICs, 18 diodes and 14 connectors. It belongs with the STM32 boards of this library.
Main components
10
STM32L431CBT6
LQFP-48(7x7)-40℃~+85℃ 1.71V~3.6V 128KB 32 Bit 39 64KB 80MHz ARM Cortex-M4 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TCAN337GD
SOIC-8-40℃~+125℃ 15uA 3.3V 55mA 5Mbps CAN FD Transceiver SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
MR25H256ACDF
DFN-8-EP(5x6)DFN-8-EP(5x6) Random Access Memory (RAM) ROHSEverspin TechSRAMTMP36FSZ
SOIC-8-40℃~+125℃ 2.7V~5.5V ±2℃ SOIC-8 Temperature Sensors ROHSAnalog DevicesTemperature SensorsLT86102UX
TQFP-100_14X14QFP-100(14x14) New Arrivals ROHSLONTIUM SEMICONDUCTORUncategorisedLTC1477CS8#PBF
SO-80℃~+70℃ 1 1A 2.7V~5.5V 70mΩ Active High High Side Switch SO-8 Power Distribution Switches ROHSAnalog DevicesPower Distribution Switches
SI3407DV
TSOP-6-55℃~+150℃ 1 P-Channel 1.67nF 20V 21nC@10V 24mΩ@4.5V 284pF 335pF 4.2W 650mV 8A P-Channel TSOP-6 MOSFETs ROHSVishay IntertechnologyMOSFETsMAX706RESA
SOIC-8-40℃~+85℃@(TA) 1 140ms 2.63V Active Low Power Supervisor Push-pull SOIC-8 Supervisor and Reset ICsMaxim Integrated (Analog Devices)Supervisor And Reset ICsSI4835DDY
SO-8-55℃~+150℃ 1 P-Channel 1.96nF 13A 20W 30V 30mΩ@4.5V 325pF 380pF 3V 65nC@4.5V P-Channel SO-8 MOSFETs ROHSVishay IntertechnologyMOSFETs
PMEG10020ELRX
SOD-123W-65℃~+150℃ 100V 150nA@100V 2A 830mV@2A Independent SOD-123W Schottky Diodes ROHSNexperiaSchottky Diodes
README
logos-templates-tools/PC104Layout/README.mdTemplate for PC104 to use for the boards. Keep in mind that the four holes on the board are througholes and it is important that all of the boards have the same distance for their throughole parts.
We should also adhere to having 2.54mm headers that are spaced at a certain (non-disclosed) distance from any holes
Parts
188| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C8, C9, C10, C11, C18, C19, C21, C30, C39, C40, C41, C42, C46, C47, C53 |
| 15 | 150 | Resistor_SMD:R_0603_1608Metric | R1, R2, R27, R29, R31, R39, R45, R46, R47, R48, R49, R50, R53, R54, R56 |
| 14 | 1uF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C6, C7, C28, C29, C31, C32, C33, C34, C44, C45, C49, C50 |
| 11 | 10k | Resistor_SMD:R_0603_1608Metric | R21, R25, R30, R36, R42, R43, R51, R52, R57, R58, R59 |
| 8 | 10 | Resistor_SMD:R_0603_1608Metric | R4, R5, R6, R7, R8, R12, R13, R14 |
| 6 | GREEN | LED_SMD:LED_0603_1608Metric | D4, D5, D7, D11, D13, D18 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R32, R33, R34, R35 |
| 4 | 10nF | Capacitor_SMD:C_0603_1608Metric | C12, C13, C14, C43 |
| 4 | AMBER | LED_SMD:LED_0603_1608Metric | D6, D8, D9, D10 |
| 4 | INA219AIDR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U3, U4, U5 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad_TopBottom | H1, H2, H3, H4 |
| 4 | PINK | LED_SMD:LED_0603_1608Metric | D14, D15, D16, D17 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C25, C26, C27 |
| 3 | 100k | Resistor_SMD:R_0603_1608Metric | R64, R65, R66 |
| 3 | 110k | Resistor_SMD:R_0603_1608Metric | R15, R16, R17 |
| 3 | 1M | Resistor_SMD:R_0805_2012Metric | R22, R23, R24 |
| 3 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C15, C16, C17 |
| 3 | 40m | Resistor_SMD:R_2512_6332Metric | R9, R10, R11 |
| 3 | 68uF | Capacitor_SMD:C_1206_3216Metric | C35, C36, C37 |
| 3 | LT8610 | Package_SO:MSOP-16-1EP_3x4.039mm_P0.5mm_EP1.651x2.845mm_ThermalVias | U6, U7, U8 |
| 3 | LTC1477CS8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U9, U10, U12 |
| 3 | Molex 205338-4 | Connector_Molex:Molex_PicoBlade_53047-0410_1x04_P1.25mm_Vertical | J8, J9, J10 |
| 3 | PMEG10020ELRX | Diode_SMD:Nexperia_CFP3_SOD-123W | D1, D2, D3 |
| 3 | SI3407DV | Package_SO:TSOP-6_1.65x3.05mm_P0.95mm | U17, U18, U22 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R40, R41 |
| 2 | 10pF | Capacitor_SMD:C_0805_2012Metric | C22, C24 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C20, C52 |
| 2 | 10uH | Inductor_SMD:L_Coilcraft_XxL4040 | L2, L4 |
| 2 | 243k | Resistor_SMD:R_0805_2012Metric | R18, R20 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R37, R38 |
| 2 | Conn_01x02 | Connector_Molex:Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | J11, J12 |
| 2 | Conn_02x26_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x26_P2.54mm_Vertical | J2, J7 |
| 2 | IRLML2803PBFCT | Package_TO_SOT_SMD:SOT-23-3 | Q4, Q5 |
| 2 | NO | Connector_Molex:Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | J16, J17 |
| 2 | RBF | Connector_Molex:Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | J13, J19 |
| 1 | 0.01uF | Capacitor_SMD:C_0603_1608Metric | C51 |
| 1 | 10m | Resistor_SMD:R_2512_6332Metric | R3 |
| 1 | 120R | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | 3V3 | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP2 |
| 1 | 4.7pF | Capacitor_SMD:C_0805_2012Metric | C23 |
| 1 | 4.7uF | Capacitor_Tantalum_SMD:CP_EIA-3528-12_Kemet-T | C3 |
| 1 | 4.7uF | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 412k | Resistor_SMD:R_0805_2012Metric | R19 |
| 1 | 412k | Resistor_SMD:R_0603_1608Metric | R28 |
| 1 | 50 | Resistor_SMD:R_0603_1608Metric | R44 |
| 1 | 5V | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP3 |
| 1 | 642k | Resistor_SMD:R_0603_1608Metric | R26 |
| 1 | 8.2uH | Inductor_SMD:L_Coilcraft_XxL4040 | L3 |
| 1 | BC848ALT1G | Package_TO_SOT_SMD:SOT-23-3 | Q3 |
| 1 | Battery Header | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J15 |
| 1 | Conn_01x05 | Connector_Molex:Molex_PicoBlade_53047-0510_1x05_P1.25mm_Vertical | J1 |
| 1 | EDFA | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP1 |
| 1 | GND | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP6 |
| 1 | LDO | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP4 |
| 1 | LOGO | LOGO | G*** |
| 1 | LT1761-3.3 | Package_TO_SOT_SMD:TSOT-23-5 | U20 |
| 1 | LTM8062AIV-PBF | PDU:LGA-77 | U14 |
| 1 | MAX706RESA | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 1 | MR25H256ACDF | Package_DFN_QFN:DFN-8-1EP_6x5mm_P1.27mm_EP2x2mm | U15 |
| 1 | NC | Connector_Molex:Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | J18 |
| 1 | NMOS | Package_SO:TSOP-6_1.65x3.05mm_P0.95mm | Q9 |
| 1 | PMOS | Package_SO:TSOP-6_1.65x3.05mm_P0.95mm | Q8 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D12 |
| 1 | SI4835DDY | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U13 |
| 1 | SIT2024B | Package_TO_SOT_SMD:SOT-23-5 | U21 |
| 1 | STM32L431CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U19 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1 |
| 1 | TCAN337G | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U16 |
| 1 | TMP36FSZ | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm | U1 |
| 1 | VBATT | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP5 |
| 1 | VSOLAR | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP7 |
Questions
How big is the PowerDistribution PCB?
It measures 90.2 × 95.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the PowerDistribution use?
188 parts, built around the STM32L431CBT6, TCAN337GD, MR25H256ACDF and TMP36FSZ. 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 PowerDistribution KiCad files?
From the UChicago-Space-Program/pulse-hardware repository on GitHub, at the commit this page was made from: the board is flight-subsystem-designs/power/power-distribution/PowerDistribution.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PowerDistribution design in my own project?
Its repository states no licence, so its author keeps all rights: ask UChicago-Space-Program before reusing the design.
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