

Dartmouth
This is where the PCBs go
- Size
- 122 × 66 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 48
- Pads
- 242
- Tracks, vias
- 559, 13
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 26 Jul 2016
- Updated
- 25 Oct 2016
Overview
Dartmouth is an open-source printed circuit board by LakeMaps, from the LakeMaps/Dartmouth repository on GitHub, published under the ISC licence. It is a 2-layer board of 122 × 66 mm with 36 parts on 48 nets, routed with 559 tracks and 13 vias.
It is built around the AP1509-SG, SI-8050Y and RJ45, with the STPS1045B-TR among its other parts. Its parts include 10 connectors, 9 capacitors, 4 diodes, 3 resistors and 3 fuses.
Main components
4AP1509-SG
SOIC-8-150mil-40℃~+125℃ 1 150kHz 150uA 2A 3.3V 4.5V~22V Buck Buck Built-in Fixed No SOIC-8-150mil DC-DC Converters ROHSDiodes IncorporatedDC-DC ConvertersSI-8050Y
TO-220F-7-30℃~+85℃ 1 130kHz 1V~15V 500uA 8A 8V~43V Adjustable Buck Built-in No Overcurrent Protection Step-down type TO-220F-7 DC-DC Converters ROHSSanken ElecDC-DC ConvertersRJ45
TH-12PTH-12P SMT ROHSJLCPCB AssemblyUncategorisedSTPS1045B-TR
TO-252-2(DPAK)1 Independent 100uA@45V 10A 45V 630mV@10A 75A TO-252-2(DPAK) Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
README
README.mdPCB
This is where the PCBs go, because "boat" was taken
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | RJ45 | Libraries:RJ45_Header | J2, J3, J4, J5, J6, J7, J8, J9 |
| 3 | FUSE | Fuse_Holders_and_Fuses:Fuseholder5x20_horiz_open_universal_Type-III | F1, F2, F3 |
| 2 | 0.22uF | Capacitors_SMD:C_0603_HandSoldering | C2, C6 |
| 2 | 1pin | Connect:1pin | HOLE1, HOLE2 |
| 2 | 470u | Capacitors_ThroughHole:C_Radial_D10_L13_P5 | C8, C9 |
| 2 | LED | LEDs:LED-5MM | D3, D4 |
| 2 | STPS1045B-TR | TO_SOT_Packages_SMD:TO-252-2Lead | D1, D2 |
| 1 | Dunno:GrandyHype_25mm | LOGO | |
| 1 | 1200pF | Capacitors_SMD:C_0603_HandSoldering | C7 |
| 1 | 220 | Resistors_SMD:R_0603_HandSoldering | R2 |
| 1 | 2200uF | Capacitors_ThroughHole:C_Radial_D10_L13_P5 | C1 |
| 1 | 33 | Resistors_SMD:R_0603_HandSoldering | R3 |
| 1 | 39k | Resistors_SMD:R_0603_HandSoldering | R1 |
| 1 | 4.7uF | Capacitors_SMD:C_0805_HandSoldering | C4 |
| 1 | 470uF | Capacitors_ThroughHole:C_Radial_D10_L13_P5 | C3 |
| 1 | 47uH | Libraries:SRR1210A_Series_Ind | L2 |
| 1 | 56uH | Libraries:SRP_Series_Ind | L1 |
| 1 | 680pF | Capacitors_SMD:C_0603_HandSoldering | C5 |
| 1 | AP1509 | Housings_SOIC:SOIJ-8_5.3x5.3mm_Pitch1.27mm | U2 |
| 1 | BARREL_JACK | Connect:BARREL_JACK | CON1 |
| 1 | RPi_GPIO | Raspi_Header | J1 |
| 1 | SI-8050Y | Libraries:TO-220-7 | U1 |
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Questions
How big is the Dartmouth PCB?
It measures 122 × 66 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dartmouth use?
36 parts, built around the AP1509-SG, SI-8050Y, RJ45 and STPS1045B-TR. 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 Dartmouth KiCad files?
From the LakeMaps/Dartmouth repository on GitHub, at the commit this page was made from: the board is Dartmouth/dartmouth.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dartmouth design in my own project?
Its repository publishes it under the ISC licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

