USBPD Board
About the USBPD Board
USBPD Board is an open source PCB design by phancak, published on GitHub under the MIT license. It is a 4-layer board measuring 100 × 50 mm, with 95 components from 53 distinct parts.
Other key parts include the MCP2221A-I/ST, USBLC6-2SC6 and MCP16331T-E/CH. By type, the board carries 37 capacitors, 24 resistors, 5 diodes, 4 ICs, 4 connectors and 3 inductors.
It belongs with the power & battery and test & measurement designs in this gallery.
From the project
Digitally Enhanced Power Analog (DEPA)Modular Power Distribution System featuring USB-PD negotiation and Digitally Enhanced Power Analog (DEPA) control. Designed to provide low-noise, high-efficiency power for precision mixed-signal instrumentation stacks.
The system is engineered for maximum field flexibility, allowing a single instrumentation stack to be powered via laboratory bench supplies, USB-C PD sources, or mobile battery packs.
1. High Modularity: The "Interchangeable Device" architecture allows for swapping analog front-ends or digital processing units without redesigning the power delivery network. 2. Field Readiness: The seamless transition to battery power makes the entire instrumentation stack viable for real-world environmental and oceanographic data collection. 3. Stability: Centralized regulation reduces ground loops and phase…
Main components on the USBPD Board
USBPD Board bill of materials (BOM)
95 components, 53 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP2221A-I/ST USB_MCP2221A-I_ST | SOP65P640X120-14N | IC1 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U2 |
| 1 | MCP16331T-E/CH | SOT-23-6 | U4 |
| 1 | ~ | Button_KMR231GLFS | U6 |
| 2 | MOSFET_SI7155DP-T1-GE3 | MOSFET_SI7155DPT1GE3 | M1, M3 |
| 1 | I/O_HDR | PinHeader_2x04_P2.54mm_Horizontal | J1 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J3 |
| 1 | I2C1_Headers | PinHeader_2x03_P2.54mm_Horizontal | J6 |
| 1 | Power_IO_JMP | PinHeader_2x04_P2.54mm_Vertical | J10 |
| 1 | CONN_54-00166 | CONN_54-00166 | CONN1 |
| 1 | CONN_54-00167 | CONN_54-00167 | CONN2 |
| 1 | BZX84C6V2-7-F Diode_PESD5V0U2BT-Q | SOT-23 | DI4 |
| 4 | S3B-XH-A-1(LF)(SN) JST_S3B-XH-2.54 | JST_S3B-XH-SHDRRA3W64P0X250_1X3_990X1150X610P | JST1, JST2, JST3, JST4 |
| 1 | S3B-XH-A-1(LF)(SN) Battery_PCK_IN | JST_S3B-XH-SHDRRA3W64P0X250_1X3_990X1150X610P | JST5 |
| 1 | LD39200DPUR LDO_LDLN050PU33R | DFN-8-1EP_3x3mm_P0.65mm_EP1.7x2.05mm | LDO1 |
| 4 | IAUCN08S7N034ATMA1 MOSFET_ISC0703NLSATMA1 | Infineon_PG-TDSON-8_6.15x5.15mm | MS1, MS2, MS3, MS4 |
| 1 | 450404015514 Switch_WS-SLSU SMT Mini Slide | Switch_WS-SLSU SMT Mini Slide | S2 |
| 1 | MCP19061-E/RTB SMPS_MCP19061-E_RTB | SMPS_MCP19061_QFN50P500X500X100-33N-D | SMPS1 |
| 1 | STM1813LWX7F VS_STM1818TWX7F | SOT-23-3_SOT103P237X112-3N | VS1 |
| 1 | SMA6S25AH | D_SOD-123 | D1 |
Show 33 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | MMSZ5241BQ-7-F | D_SOD-123 | D3, D6 |
| 1 | PMEG6010ER | Nexperia_CFP3_SOD-123W | D4 |
| 1 | 1N4448W | D_SOD-123 | D5 |
| 1 | BLM21AG221SN1D 220 Ohms @ 100 MHz | C_0805_2012Metric | FB2 |
| 1 | 22u TYS5020220M-10 | L_Changjiang_FNR5020S | L1 |
| 1 | 4u7_PA4342.472NLT | L_PA4342472NLT | L2 |
| 3 | 100n | C_0805_2012Metric | C1, C3, C11 |
| 5 | 4u7 | C_0805_2012Metric | C2, C18, C36, C37, C38 |
| 2 | 470n | C_0805_2012Metric | C6, C34 |
| 1 | 2u2 100V | C_0805_2012Metric | C10 |
| 2 | 10u 16V | C_0805_2012Metric | C12, C13 |
| 1 | 1u | C_0805_2012Metric | C14 |
| 1 | 10n | C_0805_2012Metric | C15 |
| 1 | 2u2 | C_0805_2012Metric | C16 |
| 1 | 100n 16V | C_0805_2012Metric | C17 |
| 1 | 1uF | C_0805_2012Metric | C30 |
| 1 | 1u_100V | C_0805_2012Metric | C32 |
| 1 | 1n_50V | C_0805_2012Metric | C33 |
| 3 | T530Y337M006ATE006 220u_35V | C_EEHAZKV221UB_CAPPRD350W60D800H950 | C35, C45, C51 |
| 12 | 10u_50V | C_1206_3216Metric | C39, C40, C41, C42, C43, C44, C55, C56 +4 |
| 1 | 1u_10V | C_0805_2012Metric | C50 |
| 1 | 100n_50V | C_0805_2012Metric | C54 |
| 6 | 10k | R_0805_2012Metric | R1, R2, R24, R26, R27, R65 |
| 1 | 4k7 | R_0805_2012Metric | R4 |
| 2 | 5k1 | R_0805_2012Metric | R7, R8 |
| 1 | 52k3 | R_1206_3216Metric | R20 |
| 1 | 100k | R_1206_3216Metric | R21 |
| 1 | 100k | R_0805_2012Metric | R22 |
| 1 | 100R | R_0805_2012Metric | R29 |
| 4 | 0R | R_0805_2012Metric | R31, R32, R34, R36 |
| 2 | 5m_1%_CRE2512-FZ-R005E-2 | R_2512_6332Metric | R33, R35 |
| 1 | 330R_1% | R_0805_2012Metric | R39 |
| 4 | 3R9 | R_0805_2012Metric | R40, R41, R42, R43 |
USBPD Board design files
The KiCad project lives in the phancak/USBPD_Board repository on GitHub; these links point at the commit this page was built from.
- LayoutUSBPD_Board.kicad_pcb
- SchematicUSBPD_Board.kicad_sch
USBPD Board: common questions
How big is the USBPD Board?
The USBPD Board measures 100 × 50 mm, has 4 copper layers and is 1.5842 mm thick.
How many components are on the USBPD Board?
95 components, from 53 distinct parts. The full bill of materials is listed on this page.
Where can I download the USBPD Board design files?
From the phancak/USBPD_Board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the USBPD Board design in my own project?
Yes, under the terms of its MIT license, which phancak chose for the repository.
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