Flashlight boost dev-2
About the Flashlight boost dev-2 PCB
Flashlight boost dev-2 is an open source PCB design by ahmadtak-3212, published on GitHub. It is a 2-layer board measuring 33 × 33 mm, with 12 components from 12 distinct parts.
Other key parts include the TPS61500PWPR. By type, the board carries 5 capacitors, 4 resistors, 1 IC, 1 diode and 1 inductor.
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-2
Flashlight boost dev-2 bill of materials (BOM)
12 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61500PWPR | IC_TPS27S100BPWPR | U1 |
| 1 | C35722 60V 3A | DIOM7959X262N | D1 |
| 1 | 10UH 10uH | L_10.4x10.4_H4.8 | L1 |
| 1 | 4.7U 4.7u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 10U 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 1 | 47N 47n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3 |
| 1 | 470N 470n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 1 | 150K 150k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 10K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 400M 400m | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 51K 51k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
Flashlight boost dev-2 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-2: common questions
How big is the Flashlight boost dev-2 PCB?
The Flashlight boost dev-2 measures 33 × 33 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Flashlight boost dev-2?
12 components, from 12 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-2 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-2 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
32 × 32 mm7 parts2LNo license0
Flashlight led
32 × 32 mm5 parts2LNo license0
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