2 layers80 × 50 mm
Eink clock
kaini/eink-clock
Source code and schematics for a clock using the ED060SC4 E-Ink display
81 parts11MIT
2 layers10.5 × 9 mm
TPS61041 BOOST CONVERTER
aks0521/Boost-Converter-A small step-up (boost) converter board built around the Texas Instruments TPS61041, designed from schematic to PCB layout in KiCad.
- Size
- 10.5 × 9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 5
- Pads
- 19
- Tracks, vias
- 37, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Aug 2026
- Updated
- 7 Aug 2026
Overview
TPS61041 BOOST CONVERTER is an open-source printed circuit board by aks0521, from the aks0521/Boost-Converter- repository on GitHub. It is a 2-layer board of 10.5 × 9 mm with 8 parts on 5 nets, routed with 37 tracks and 0 vias.
It is built around the TPS61041DBV and MBR0530. Its parts include 3 capacitors, 2 resistors, 1 IC, 1 diode and 1 inductor. It belongs with the power boards of this library.
Main components
2
TPS61041DBV
SOT-23-5-40℃~+125℃@(TJ) 1 1.8V~6V 1MHz 250mA 28V 28uA Adjustable Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHSTexas InstrumentsLED Drivers
MBR0530
SOD-1231 Independent 30V 5.5A 500mA 550mV@500mA 80uA@30V SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
README
README.mdTPS61041 Boost Converter — PCB Design
A small step-up (boost) converter board built around the Texas Instruments TPS61041, designed from schematic to PCB layout in KiCad.
Overview
- IC: TPS61041DBV (SOT-23-5, 250 mA switch current, up to 1 MHz PFM boost controller)
- Input: VCC (per datasheet, 1.8 V – 6 V)
- Output: 18 V (matches the TI datasheet's LCD bias supply reference design)
- Application reference: TI TPS61040/TPS61041 datasheet, LCD Bias Supply (Figure 8-1)
Schematic
Bill of Materials
| Ref | Value | Role |
|---|---|---|
| U1 | TPS61041DBV | Boost converter IC |
| L1 | 10 µH | Main inductor |
| D1 | MBR0530 | Schottky rectifier |
| C1 | 4.7 µF | Input capacitor |
| C2 | 1 µF | Output capacitor |
| C3 | 22 pF | Feedforward capacitor (CFF, parallel with R1) |
| R1 | 2.2 MΩ | Feedback divider (VOUT → FB) |
| R2 | 160 kΩ | Feedback divider (FB → GND) |
Output voltage equation: Vout = 1.233 V × (1 + R1/R2) → ≈ 18.2 V with the values above.
PCB Layout
Status
- Schematic captured in KiCad
- Footprints assigned
- Components placed and routed on PCB
- DRC clean pass
- Ground plane pour
- Gerber generation
- Fabrication order (JLCPCB / PCBWay)
- Assembly and bench testing
Tools Used
- Schematic + PCB layout: KiCad
- Reference: TPS61040/TPS61041 datasheet (Texas Instruments)
Notes
The TPS61041's internal switch current limit is 250 mA (typ.), which keeps deliverable output current relatively low (tens of mA depending on Vin/Vout/efficiency) — this part is intended for LCD bias / white-LED backlight style loads, not high-current supplies.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 10uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 160K | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 2.2M | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 22pF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | MBR0530 | Diode_SMD:D_SOD-123 | D1 |
| 1 | TPS61041DBV | Package_TO_SOT_SMD:SOT-23-5 | U1 |
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Questions
How big is the TPS61041 BOOST CONVERTER PCB?
It measures 10.5 × 9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TPS61041 BOOST CONVERTER use?
8 parts, built around the TPS61041DBV and MBR0530. 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 TPS61041 BOOST CONVERTER KiCad files?
From the aks0521/Boost-Converter- repository on GitHub, at the commit this page was made from: the board is Boost converter/TPS61041_BOOST_CONVERTER/TPS61041_BOOST_CONVERTER.kicad_pcb and its schematic Boost converter/TPS61041_BOOST_CONVERTER/TPS61041_BOOST_CONVERTER.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TPS61041 BOOST CONVERTER design in my own project?
Its repository states no licence, so its author keeps all rights: ask aks0521 before reusing the design.