4 layers121 × 40 mm
PowerAmplifier
BlockWorker/ModularAudio
Compact, modular, versatile, hi-fi audio system concept.
156 parts2
4 layers80.5 × 40 mm
BasePower
BlockWorker/ModularAudio2Compact, modular, versatile, hi-fi audio system concept.
- Size
- 80.5 × 40 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 95
- Nets
- 56
- Pads
- 332
- Tracks, vias
- 281, 176
- Pours
- 229
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Jul 2024
- Updated
- 26 Sep 2025
Overview
BasePower is an open-source printed circuit board by BlockWorker, from the BlockWorker/ModularAudio repository on GitHub. It is a 4-layer board of 80.5 × 40 mm with 95 parts on 56 nets, routed with 281 tracks and 176 vias.
It is built around the TPS7A470X and NX138BKR. Its parts include 37 capacitors, 27 resistors, 4 ICs, 4 diodes and 4 connectors. It belongs with the audio and music boards of this library.
Main components
2Parts
95| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1µF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C8, C9, C13, C14, C25, C27, C31, C34 |
| 6 | Hole_2mm | BW_PassiveMechanical:Hole_2mm | Hole1, Hole2, Hole3, Hole4, Hole5, Hole6 |
| 3 | 0Ω | Resistor_SMD:R_0603_1608Metric | R2, R4, R21 |
| 3 | 10µF 50Vl | Capacitor_SMD:C_1210_3225Metric | C23, C24, C30 |
| 2 | 100kΩ | Resistor_SMD:R_0603_1608Metric | R15, R26 |
| 2 | 10kΩ | Resistor_SMD:R_0603_1608Metric | R22, R27 |
| 2 | 10µF 50V x2 | Capacitor_SMD:C_1206_3216Metric | C10, C11 |
| 2 | 10µF 50Vl x2 | Capacitor_SMD:C_1210_3225Metric | C6, C7 |
| 2 | 1kΩ | Resistor_SMD:R_0603_1608Metric | R1, R9 |
| 2 | 1µF | Capacitor_SMD:C_0603_1608Metric | C26, C32 |
| 2 | 470µF 6.3V | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C22, C29 |
| 2 | 47µF 6.3V | Capacitor_SMD:C_1210_3225Metric | C20, C21 |
| 2 | 50Ω | Resistor_SMD:R_0603_1608Metric | R12, R13 |
| 2 | ?pF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | ?Ω | Resistor_SMD:R_1206_3216Metric | R10, R11 |
| 2 | NX138BK | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 0.1V | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | 0.2V | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | 0.4V | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | 0.8V | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | 10mΩ 0.5W | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 10pF | Capacitor_SMD:C_0603_1608Metric | C19 |
| 1 | 10µF 50V | Capacitor_SMD:C_1206_3216Metric | C33 |
| 1 | 11kΩ | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 12.1kΩ | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 12V | Connector_PinHeader_2.54mm:PinHeader_2x15_P2.54mm_Vertical | J4 |
| 1 | 18pF | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 1mF 16V | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C12 |
| 1 | 1µF 50Vl | Capacitor_SMD:C_0805_2012Metric | C37 |
| 1 | 2.2kΩ | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 2.5A | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | 220µF 35V | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C1 |
| 1 | 22µF 16V | Capacitor_SMD:C_1210_3225Metric | C35 |
| 1 | 23.2kΩ | Resistor_SMD:R_0603_1608Metric | R25 |
| 1 | 2kΩ | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 3.3V | Connector_PinHeader_2.54mm:PinHeader_2x15_P2.54mm_Vertical | J2 |
| 1 | 3.3kΩ | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 3.3µH | Inductor_SMD:L_Vishay_IHLP-2525 | L1 |
| 1 | 33kΩ | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 4.7kΩ | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 4.7µF | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 40.2kΩ | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 470pF | Capacitor_SMD:C_0603_1608Metric | C18 |
| 1 | 470µF 16V | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C36 |
| 1 | 47µF 6.3V x2 | Capacitor_SMD:C_1210_3225Metric | C28 |
| 1 | 487kΩ | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 4A | Fuse:Fuse_0603_1608Metric | F2 |
| 1 | 510Ω | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 5A | Fuse:Fuse_0603_1608Metric | F3 |
| 1 | 5V | Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Vertical | J3 |
| 1 | 750kΩ | Resistor_SMD:R_0603_1608Metric | R24 |
| 1 | ?kΩ | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | Amber | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | Green | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | Red | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | SW1 | Connector_Coaxial:U.FL_Molex_MCRF_73412-0110_Vertical | TP1 |
| 1 | SW2 | Connector_Coaxial:U.FL_Molex_MCRF_73412-0110_Vertical | TP2 |
| 1 | Shunt | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | TLVM13640 | BW_Active:TI_B3QFN-20 | U2 |
| 1 | TPS552892 | BW_Active:TI_VQFN-HR-21 | U1 |
| 1 | TPS7A47 | Package_DFN_QFN:Texas_RGW0020A_VQFN-20-1EP_5x5mm_P0.65mm_EP3.15x3.15mm | U4 |
| 1 | TPSM33625F | BW_Active:TI_QFN-FCMOD-HR | U3 |
| 1 | VIN | Connector_Molex:Molex_Nano-Fit_105309-xx02_1x02_P2.50mm_Vertical | J1 |
| 1 | YellowGreen | LED_SMD:LED_0603_1608Metric | D3 |
The 94 most common of 95 parts.
Questions
How big is the BasePower PCB?
It measures 80.5 × 40 mm and has 4 copper layers, 1.61 mm thick.
What parts does the BasePower use?
95 parts, built around the TPS7A470X and NX138BKR. 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 BasePower KiCad files?
From the BlockWorker/ModularAudio repository on GitHub, at the commit this page was made from: the board is BasePower/BasePower.kicad_pcb and its schematic 12VLDO/12VLDO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BasePower design in my own project?
Its repository states no licence, so its author keeps all rights: ask BlockWorker before reusing the design.
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