6 layers16.4 × 25.3 mm
Nrf54l module
efogdev/nrf54l15-module
nRF54L15 module with full IO set and external DC-DC regulator for maximum efficiency
134 parts12
2 layers46 × 21 mm
nRF54L15 module with full IO set and external DC-DC regulator for maximum efficiency
- Size
- 46 × 21 mm
- Copper layers
- 2
- Thickness
- 0.65 mm
- Parts
- 28
- Nets
- 47
- Pads
- 150
- Tracks, vias
- 208, 20
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Jun 2025
- Updated
- 9 Jul 2025
Overview
Usb is an open-source printed circuit board by efogdev, from the efogdev/nrf54l15-module repository on GitHub. It is a 2-layer board of 46 × 21 mm with 28 parts on 47 nets, routed with 208 tracks and 20 vias.
It is built around the HDC2010YPAR, HT42B534-2 and AXP2585, with the CL03A105MQ3CSNH, BM28B0.6-10DP/2-0.35V(51) and FRM121WFR100TM among its other parts. Its parts include 12 capacitors, 8 resistors, 3 ICs, 2 connectors and 1 diode. It belongs with the power boards of this library.
Main components
9
HDC2010YPAR
DSBGA-6-40℃~+85℃ 0%RH~100%RH 1.62V~3.6V 11bit 550nA I2C ±0.2℃ ±2%RH DSBGA-6 Temperature and Humidity Sensor ROHSTexas InstrumentsTemperature And Humidity Sensor
HT42B534-2
SOP-10-150mil20mA 3.3V~5.5V 3Mbps 450uA USB 2.0 USB to UART SOP-8 USB Converters ROHSHoltek SemiconUSB Converters
AXP2585
QFN-32(5x5)-40℃~+85℃ 1 2.8V 3.072A 3.9V~5.5V 4.608V QFN-32(5x5) Battery Management ROHSX-Powers TechBattery Management
CL03A105MQ3CSNH
02010201 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSJSMSEMIMultilayer Ceramic Capacitors MLCC - SMD/SMT
BM28B0.6-10DP/2-0.35V(51)
SMD,P=0.35mm-40℃~+85℃ 0.35mm 10P 2 30V 5A Copper alloy Gold Surface Mount,Vertical SMD,P=0.35mm Board-to-Board and Backplane Connector ROHSHirose ElectricBoard-To-Board And Backplane Connector
FRM121WFR100TM
1206100mΩ 1W Current Sense Resistor ±1% ±50ppm/℃ 1206 Current Sense Resistors / Shunt Resistors ROHSFOJANCurrent Sense Resistors / Shunt Resistors
FTC252012S1R0MBCD
100816mΩ 1uH 5.2A 6.5A ±20% 1008 Molding Power Inductors ROHScjiangPower Inductors
HC-1.0-3PWT
SMD,P=1mm,卧贴-25℃~+85℃ 1 1A 1mm 1x3P 3 3.2mm 3P 5.05mm 5.3mm 50V Auxiliary Solder Pin LCP Phosphor bronze SH Surface Mount, Right Angle Tin UL94V-0 SMD,P=1mm,Surface Mount，Right Angle Wire To Board Connector ROHSHCTLWire To Board ConnectorXL-0201SURC
0201-40℃~+85℃ 120° 2.4V 20mA 240mcd 50mW 615nm~630nm 625nm Discrete Diode Red Top-mount Water Clear 0201 LED Indication - Discrete ROHSXINGLIGHTLED Indication - Discrete
README
README.mdCodename "Chinchilla"
❗️ DO NOT BUILD ❗️
❗️ The design has a critical issue ❗️
Features
- Full IO set: all the GPIO and programming pins are present
- Compact design: the board is 16.4x25.3 mm with ≈4.8 mm of total height
- Ultra efficient: featuring TLV62569 with ≥92% efficiency at (almost) any load
- 1V8 pin can be used as both input (if VIN not connected) and output (up to 1.5A)
- 4 programmable LEDs (200 µA) that can be isolated to free the pins
- On-board "reset" switch and an additional general purpose button (High/High-Z)
- Impedance of (almost) all traces is close to 50Ω
- Board-to-board connector with programming, power and GPIO pins
Stackup
JLC06121H-3313
Dimensions
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | CRCW02014K70FKED | Resistor_SMD:R_0201_0603Metric | R1, R3, R4, R5, R6, R7, R8 |
| 6 | CL05A106MP5NUNC_C315248 | easyeda2kicad:C0402 | C3, C4, C5, C8, C10, C11 |
| 4 | CL03A105MQ3CSNH | Capacitor_SMD:C_0201_0603Metric | C6, C7, C9, C12 |
| 2 | GRM155R60J226ME11D | easyeda2kicad:C0402 | C1, C2 |
| 1 | AXP2585 | easyeda2kicad:QFN-32_L5.0-W5.0-P0.40-TL-EP2.9 | U2 |
| 1 | BM28B0.6-10DP/2-0.35V(51) | easyeda2kicad:CONN-SMD_BM28B0.6-10DP-2-0.35V-51 | J2 |
| 1 | FRM121WFR100TM | easyeda2kicad:R1206 | R2 |
| 1 | FTC252012S1R0MBCD | easyeda2kicad:L1008 | L1 |
| 1 | HC-1.0-3PWT | easyeda2kicad:CONN-SMD_3P-P1.0-HC-1.0-3PWT | J1 |
| 1 | HDC2010YPAR | easyeda2kicad:DSBGA-6_L1.5-W1.5-P0.50-BL | U4 |
| 1 | HT42B534-2 | easyeda2kicad:SOP-8_L4.9-W3.9-P1.27-LS6.0-BL | U1 |
| 1 | TYPE-C 16P QTWT | easyeda2kicad:USB-TYPE-C-SMD_TYPE-C-16P-QTWT | USB1 |
| 1 | XL-0201SURC | easyeda2kicad:LED-SMD_L0.65-W0.35-P0.41_XL-0201SURC | LED1 |
Questions
How big is the Usb PCB?
It measures 46 × 21 mm and has 2 copper layers, 0.65 mm thick.
What parts does the Usb use?
28 parts, built around the HDC2010YPAR, HT42B534-2, AXP2585 and CL03A105MQ3CSNH. 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 Usb KiCad files?
From the efogdev/nrf54l15-module repository on GitHub, at the commit this page was made from: the board is companions/usb/usb.kicad_pcb and its schematic companions/flex/usb-and-battery/usb-and-battery-companion/usb-and-battery-companion.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb design in my own project?
Its repository states no licence, so its author keeps all rights: ask efogdev before reusing the design.
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