Flashlight boost dev
About the Flashlight boost dev PCB
Flashlight boost dev is an open source PCB design by ahmadtak-3212, published on GitHub. It is a 2-layer board measuring 32 × 32 mm, with 7 components from 6 distinct parts.
Other key parts include the TPS61169DCKR.
It belongs with the power & battery designs in this gallery.
From the project
A handheld flashlight built around a Cree XHP50.3 (6 V) LED. The repo holds two threads of work:
A handheld flashlight built around a Cree XHP50.3 (6 V) LED. The repo holds two threads of work:
1. The power converter (finished, documented in the final report): a discrete, analog, constant-current boost converter that takes 3 V from two alkaline cells up to about 6–6.5 V and regulates the LED at about 1–1.5 A. It uses op-amps, a comparator and a gate driver, with no microcontroller in the loop. It was built as the final project for MIT 6.2222 (fall 2025), including the graduate extension. 2. The product boards (in progress): an STM32 controller with shake-to-wake, a USB-PD charger and…
Main components on the Flashlight boost dev
Flashlight boost dev bill of materials (BOM)
7 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61169DCKR | SOT65P210X110-5N | U1 |
| 2 | 4.7U 4.7u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | CU11, CU13 |
| 1 | 1u | C_0603_1608Metric | CU12 |
| 1 | NSR0240P2T5G | SOD-923 | DU11 |
| 1 | WE-MAPI_4030 | WE-MAPI_4030 | LU11 |
| 1 | 0.5 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | RU11 |
Flashlight boost dev design files
The KiCad project lives in the ahmadtak-3212/flashlight_project repository on GitHub; these links point at the commit this page was built from.
Flashlight boost dev: common questions
How big is the Flashlight boost dev PCB?
The Flashlight boost dev measures 32 × 32 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Flashlight boost dev?
7 components, from 6 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 Flashlight boost dev design files?
From the ahmadtak-3212/flashlight_project 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 Flashlight boost dev design in my own project?
The repository has no license, so all rights stay with ahmadtak-3212. Use it as a reference, and ask the author before reusing the design.
More boards in flashlight_project
RP2040/RP2350Flashlight power input dev
100 × 30 mm89 parts4LNo license0- schematic only · 85 partsSTM32
Flashlight full v1-1
85 parts6LNo license0 
STM32Flashlight stm32-dev
120 × 35 mm77 parts6LNo license0
Flashlight boost dev-2
33 × 33 mm12 parts2LNo license0
Flashlight led
32 × 32 mm5 parts2LNo license0
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