Dongle lite
About the Dongle lite PCB
Dongle lite is an open source PCB design by fcjr, published on GitHub under the Apache-2.0 license. It is a 6-layer board measuring 16 × 55 mm, with 56 components from 25 distinct parts.
Other key parts include the RP2354A, FUSB302BMPX, CH334F, RT9013-33GB and TLV70212DBVR. By type, the board carries 26 capacitors, 12 resistors, 8 ICs, 4 diodes, 2 crystals and 2 connectors.
It belongs with the power & battery designs in this gallery.
From the project
Reformat an Apple Silicon mac from any platform.
The USB 2.0 variant of the RecoverKit dongle: an RP2354A + FUSB302B board that forces an Apple Silicon / T2 Mac into DFU over USB-PD, no keyboard dance required. See ../README.md for how the dongle family works and how the Lite compares to the Dongle-Pro, ./PRD.md for the product spec, and ./BOM-sourcing.md for parts sourcing.
The host plugs into J1, the target Mac into J2. A CH334F USB 2.0 hub puts two devices on the host's bus: the RP2354A (control + CDC serial for restorekit) and the target itself. The FUSB302B drives the target CC line with Apple's vendor-defined USB-PD messages to flip…
Main components on the Dongle lite
Dongle lite bill of materials (BOM)
56 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RP2354A | QFN-60_L7.0-W7.0-P0.40-TL-EP3.4 | U1 |
| 1 | FUSB302BMPX | MLP-14_L2.5-W2.5-P0.50-BL-EP | U2 |
| 1 | CH334F | QFN-24_L4.0-W4.0-P0.50-BL-EP2.8 | U3 |
| 1 | RT9013-33GB | SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL | U5 |
| 1 | TLV70212DBVR | SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL | U6 |
| 2 | 74AVC1T45GW,125 | SC-88-6_L2.0-W1.3-P0.65-LS2.1-BL | U8, U9 |
| 1 | AP22653W6-7 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | U10 |
| 2 | X322512MSB4SI | CRYSTAL-SMD_4P-L3.2-W2.5-BL | Y1, Y2 |
| 2 | TYPE-C-31-M-12 | USB-C_SMD-TYPE-C-31-M-12_1 | J1, J2 |
| 1 | TS-1187A-B-A-B | SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL_H1.5 | SW1 |
| 2 | KT-0603R | LED-SMD_L1.6-W0.8-R-RD | D1, D2 |
| 2 | USBLC6-2SC6 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | D10, D11 |
| 1 | 3.3UH 3.3uH | IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T | L1 |
| 4 | 22PF 22pF | C0805 | C1, C2, C15, C16 |
| 6 | 1UF 1uF | C0402 | C4, C14, C18, C23, C24, C26 |
| 12 | 100NF 100nF | C0402 | C5, C8, C10, C11, C12, C13, C17, C19 +4 |
| 2 | 4.7UF 4.7uF | C0402 | C6, C9 |
| 1 | 4.7UF 100nF | C0402 | C7 |
| 1 | 10UF 10uF | C0805 | C22 |
| 2 | 10K 10k | R0402 | R1, R9 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 4.7K 4.7k | R0402 | R2, R3, R4 |
| 2 | 5.1K 5.1k | R0402 | R6, R7 |
| 1 | 47K 47k | R0603 | R8 |
| 3 | 1k | R0402 | R10, R11, R13 |
| 1 | 33 | R0402 | R12 |
Dongle lite design files
The KiCad project lives in the fcjr/restorekit repository on GitHub; these links point at the commit this page was built from.
Dongle lite: common questions
How big is the Dongle lite PCB?
The Dongle lite measures 16 × 55 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Dongle lite?
56 components, from 25 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Dongle lite design files?
From the fcjr/restorekit repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Dongle lite design in my own project?
Yes, under the terms of its Apache-2.0 license, which fcjr chose for the repository.
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