

Ledcube
- Size
- 87.7 × 80.2 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 287
- Nets
- 424
- Pads
- 1,408
- Tracks, vias
- 3,043, 346
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Jan 2026
- Updated
- 28 Sep 2026
Overview
Ledcube is an open-source printed circuit board by Flawake, from the Flawake/Ledcube repository on GitHub. It is a 4-layer board of 87.7 × 80.2 mm with 287 parts on 424 nets, routed with 3,043 tracks and 346 vias.
It is built around the TPS56637RPAR, B3B-XH-A(LF)(SN) and B4B-XH-A(LF)(SN), with the HC-PHD2.0-2X3A, M95M04-DRMN6TP and SP7538PUTG among its other parts. Its parts include 143 resistors, 54 capacitors, 29 diodes, 24 ICs and 13 connectors. It belongs with the STM32 and nRF52 and nRF5x boards of this library.
Main components
12TPS56637RPAR
VQFN-10-HR(3x3)-40℃~+150℃@(TJ) 1 140uA 4.5V~28V 500kHz 600mV~13V 6A Adjustable Buck Buck Built-in Yes VQFN-10-HR(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersB3B-XH-A(LF)(SN)
插件,P=2.5mm-25℃~+85℃ 1 1x3P 2.5mm 250V 3 3A 3P 5.75mm 7mm 9.9mm Brass K Pin PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board ConnectorB4B-XH-A(LF)(SN)
插件,P=2.5mm-25℃~+85℃ 1 12.4mm 1x4P 2.5mm 250V 3A 4 4P 5.75mm 7mm Brass K Pin PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board ConnectorHC-PHD2.0-2X3A
插件,P=2mm-25℃~+85℃ 2 250V 2mm 2mm 2x3P 3 3A 5.2mm 6.6mm 6P 8mm Beige Copper PA66 PHD Through Hole Tin 插件,P=2mm Wire To Board Connector ROHSHong ChengWire To Board ConnectorM95M04-DRMN6TP
SOIC-8-40℃~+85℃ 1.8V~5.5V 10MHz 4,000,000 Cycles 40 Years 4Mbit 5ms Hardware write protection function、Software write protection function、Built-in power-on reset (POR)、Page write protection function、Built-in error correction code (ECC) function、Built-in write enable latch (WEL) SPI SOIC-8 EEPROM ROHSSTMicroelectronicsEEPROMSP7538PUTG
UDFN-9(3.8x1)0.5pF 1.5uA 2A@8/20us 5V 7V 8 ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional UDFN-9(3.8x1) ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsPESD3V3L1BA
--65℃~+150℃ 1 101pF 18A@8/20us 26V 3.3V 500W 6.9V 90nA Bidirectional ESD SOD-323 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)ESDA25P35-1U1M
DFN1610-2-55℃~+150℃ 1 1.4kW@8/20us 200nA 22V 24.6V 35A@8/20us 41V IEC 61000-4-2 TVS Unidirectional DFN1610-2 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)JSM7409B
PDFN3333-8L-55℃~+150℃ 1 P-Channel 1.6nF 10A 3.1W 300pF 30V 30mΩ@4.5V 30nC@15V 3V PDFN3333-8L MOSFETs ROHSJSMSEMIMOSFETsBAT54
SOT-23200mA 2uA@25V 30V 800mV@100mA Independent SOT-23 Schottky Diodes ROHSFOSANSchottky DiodesESDA25L
SOT-23-55℃~+125℃ 100nA 2 24V 300W@8/20us 30V 30pF 44V 6A@8/20us ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional SOT-23 ESD and Surge Protection (TVS/ESD) ROHSBORNESD And Surge Protection (TVS/ESD)
Parts
287| Qty | Value | Footprint | References |
|---|---|---|---|
| 101 | 47Ω | Resistor_SMD:R_0603_1608Metric | R15, R100, R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112, R113, R114 +85 |
| 32 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C10, C12, C19, C20, C23, C24, C29, C30, C31, C32, C33, C34, C35, C36 +16 |
| 15 | SP7538P | Package_DFN_QFN:UDFN-9_1.0x3.8mm_P0.5mm | D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19 |
| 13 | SN74LVC373ARGYR | SN74LVC373ARGYR:RGY20_3P05X2P05 | U7, U8, U9, U10, U11, U12, U13, U14, U15, U16, U17, U18, U19 |
| 12 | 1k | Resistor_SMD:R_0603_1608Metric | R115, R116, R117, R118, R119, R120, R121, R122, R123, R124, R136, R138 |
| 11 | 100K | Resistor_SMD:R_0603_1608Metric | R125, R126, R127, R128, R129, R130, R131, R132, R133, R134, R139 |
| 11 | B10B-PHDSS-B_LF__SN_ | JST B10B-PHDSS-B(LF)(SN):B10BPHDSSBLFSN | J1, J2, J3, J4, J5, J6, J7, J8, J9, J10, J11 |
| 10 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10 |
| 7 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R8, R13, R14, R141, R142, R143 |
| 6 | PESD3V3L1BA | Diode_SMD:D_SOD-882 | D3, D4, D25, D26, D27, D28 |
| 5 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2, C44, C45, C46, C47 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric | C21, C22, C52, C54 |
| 3 | 2.2K | Resistor_SMD:R_0402_1005Metric | R6, R7, R9 |
| 3 | 22uF | Capacitor_SMD:C_0603_1608Metric | C26, C27, C28 |
| 3 | ESDA25P35-1U1M | Diode_SMD:D_SOD-882 | D21, D24, D29 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric | C6, C7 |
| 2 | 15pF | Capacitor_SMD:C_0402_1005Metric | C17, C18 |
| 2 | 2.2uF, < 100mΩ | Capacitor_SMD:C_0805_2012Metric | C11, C13 |
| 2 | 220 | Resistor_SMD:R_0603_1608Metric | R3, R5 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C14, C43 |
| 2 | B2B-XH-A (LF)(SN) | easyeda2kicad:CONN-TH_B2B-XH-A-LF-SN | CN1, CN2 |
| 2 | FerriteBead | Resistor_SMD:R_0805_2012Metric | FB2, FB3 |
| 2 | JSM7409B | easyeda2kicad:POWERVDFN-8_L3.2-W3.1-P0.65-LS3.3-BL-1 | Q11, Q13 |
| 2 | Jumper_2_Bridged | Resistor_SMD:R_0805_2012Metric | JP1, JP2 |
| 2 | TYPE-C 16PIN 2MD(073) | easyeda2kicad:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1, USB2 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R140 |
| 1 | 100pF | Capacitor_SMD:C_0402_1005Metric | C25 |
| 1 | 2.2uH | Inductor_SMD:L_Chilisin_BMRB00050518-B | L1 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 22 | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 220nF | Capacitor_SMD:C_0402_1005Metric | C50 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric | R137 |
| 1 | 45.3k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 470 | Resistor_SMD:R_1206_3216Metric | R135 |
| 1 | 49.9 | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | ASM330LHBG1TR | easyeda2kicad:LGA-14_L3.0-W2.5-P0.50-BL | U21 |
| 1 | B3B-XH-A(LF)(SN) | easyeda2kicad:CONN-TH_3P-P2.50_A2501WV2-3P | U3 |
| 1 | B4B-XH-A(LF)(SN) | easyeda2kicad:CONN-TH_B4B-XH-A-LF-SN | U4 |
| 1 | BAT54 | Package_TO_SOT_SMD:TSOT-23 | D23 |
| 1 | ESDA25L | Package_TO_SOT_SMD:SOT-23-3 | D22 |
| 1 | FerriteBead | Resistor_SMD:R_0402_1005Metric | FB1 |
| 1 | HC-PHD2.0-2X3A | easyeda2kicad:HDR-TH_6P-P2.00-V-F-R2-C3-S2.00-4 | U5 |
| 1 | IIS2MDCTR | easyeda2kicad:LGA-12_L2.0-W2.0-P0.50-TL | U22 |
| 1 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3 |
| 1 | LED_PWR | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LED_STAT | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | M95M04-DRMN6TP | easyeda2kicad:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | U2 |
| 1 | MDH 2.D.1.480008813 | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | PRTR5V0U4D | easyeda2kicad:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | D20 |
| 1 | Q13FC1350000400 | easyeda2kicad:FC-135R_L3.2-W1.5 | X1 |
| 1 | STM32H743VGTx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U1 |
| 1 | STUSB4500QTR | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U20 |
| 1 | TMP117xxDRV | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U23 |
| 1 | TPS56637RPAR | easyeda2kicad:VQFN-HR-10_L3.0-W3.0_RPA | U6 |
| 1 | TS-1088-AR02016 | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW2 |
| 1 | nRF52832-QFxx | Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.6x4.6mm | U24 |
Questions
How big is the Ledcube PCB?
It measures 87.7 × 80.2 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Ledcube use?
287 parts, built around the TPS56637RPAR, B3B-XH-A(LF)(SN), B4B-XH-A(LF)(SN) and HC-PHD2.0-2X3A. 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 Ledcube KiCad files?
From the Flawake/Ledcube repository on GitHub, at the commit this page was made from: the board is LedCube.kicad_pcb and its schematic Core.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ledcube design in my own project?
Its repository states no licence, so its author keeps all rights: ask Flawake before reusing the design.
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