2 layers29 × 22 mm
5way cv switch
cycfi/5way_cv_switch
KiCad PCB project — part of the Cycfi Connect series (umbrella repo: cycfi/connect)
20 parts
2 layers30 × 8 mm
Cv buffer
cycfi/cv_bufferKiCad PCB project — part of the Cycfi Connect series (umbrella repo: cycfi/connect)
- Size
- 30 × 8 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 11
- Nets
- 7
- Pads
- 24
- Tracks, vias
- 38, 11
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 Jul 2026
- Updated
- 23 Jul 2026
Overview
Cv buffer is an open-source printed circuit board by cycfi, from the cycfi/cv_buffer repository on GitHub. It is a 2-layer board of 30 × 8 mm with 11 parts on 7 nets, routed with 38 tracks and 11 vias.
It is built around the HT7550-1 and 1N4148W. Its parts include 3 capacitors, 2 ICs, 2 connectors, 1 resistor and 1 diode.
Main components
2
HT7550-1
SOT-89-3-40℃~+85℃@(Ta) 1 150mA 2.5uA 25mV@(1mA) 30V 5V Fixed Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHOLTEKVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | CV connector | cycfi_library:pin_header_1x3p_2.54mm_smd_horizontal | J1, J2 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | 1K | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D1 |
| 1 | HT7550-1 | Package_TO_SOT_SMD:SOT-89-3 | U1 |
| 1 | LOGO | cycfi_library:infinity_logo_4mm | G*** |
| 1 | LOGO | cycfi_library:cycfi-logo-9mm | G*** |
| 1 | TLV6001UIDBVR | Package_TO_SOT_SMD:SOT-23-5 | U2 |
Questions
How big is the Cv buffer PCB?
It measures 30 × 8 mm and has 2 copper layers, 1 mm thick.
What parts does the Cv buffer use?
11 parts, built around the HT7550-1 and 1N4148W. 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 Cv buffer KiCad files?
From the cycfi/cv_buffer repository on GitHub, at the commit this page was made from: the board is cv_buffer.kicad_pcb and its schematic cv_buffer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cv buffer design in my own project?
Its repository states no licence, so its author keeps all rights: ask cycfi before reusing the design.
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