2 layers75 × 55 mm
I2s
duanestorey/hifi-amp
A high-fidelity four-channel amplifier with active-crossovers and room correction
41 parts1
4 layers100 × 50 mm
MMS3 hat konarm
KoNarRobotics/MMS3_hat_konarmMMS3 hat for konarm. Fork of https://github.com/KoNaR-Hefajstos/MMS3_hat_templates#
- Size
- 100 × 50 mm
- Copper layers
- 4
- Thickness
- 1.65 mm
- Parts
- 88
- Nets
- 86
- Pads
- 339
- Tracks, vias
- 527, 446
- Pours
- 30
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Apr 2026
- Updated
- 9 Apr 2026
Overview
MMS3 hat konarm is an open-source printed circuit board by KoNarRobotics, from the KoNarRobotics/MMS3_hat_konarm repository on GitHub. It is a 4-layer board of 100 × 50 mm with 88 parts on 86 nets, routed with 527 tracks and 446 vias.
It is built around the LM2596HVS-ADJRG, AMS1117 and SN74CB3Q3384APW, with the MBRD10100CTTR among its other parts. Its parts include 38 resistors, 19 capacitors, 7 ICs, 7 connectors and 3 diodes.
Main components
4
LM2596HVS-ADJRG
TO-263-5-40℃~+125℃@(TJ) 1 1.23V~37V 150kHz 2mA 3A 5V~57V Adjustable Buck Buck Built-in No TO-263-5 DC-DC Converters ROHSHANSCHIP semiconductorDC-DC Converters
AMS1117
1.0 A Low-Dropout Fixed RegulatorAdvanced Monolithic SystemsUncategorised
SN74CB3Q3384APW
TSSOP-24-40℃~+85℃ 0.15ns 10/10 1mA 2.3V~3.6V 74CB3Q Output enable high-impedance、Power-off protection、Level shifting Single Supply TSSOP-24 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders
MBRD10100CTTR
TO-252-2(DPAK)-55℃~+200℃ 1 Pair Common Cathode 100V 1mA@100V 5A 84A 850mV@5A TO-252-2(DPAK) Schottky Diodes ROHSSMCSchottky Diodes
Parts
88| Qty | Value | Footprint | References |
|---|---|---|---|
| 30 | 10kΩ | PCM_JLCPCB:R_0402 | R2, R10, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27 +14 |
| 8 | 47u | Capacitor_SMD:CP_Elec_6.3x7.7 | C4, C5, C7, C13, C14, C15, C18, C19 |
| 7 | 100nF | PCM_JLCPCB:C_0603 | C1, C2, C8, C9, C11, C12, C16 |
| 5 | M2.5 mount | MountingHole:MountingHole_2.7mm_M2.5 | H2, H3, H4, H5, H6 |
| 4 | 33kΩ | PCM_JLCPCB:R_0402 | R5, R6, R12, R13 |
| 3 | 10uF | PCM_JLCPCB:C_0603 | C3, C6, C17 |
| 3 | Conn_02x02 | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J7, J8, J9 |
| 3 | ~ | PCM_JLCPCB:Hole_Tooling_JLCPCB | H7, H8, H9 |
| 1 | 0.2 | PCM_JLCPCB:R_1206 | R31 |
| 1 | 100uH 4A | Inductor_SMD:L_Sunlord_SWRB1207S | L1 |
| 1 | 1kΩ | PCM_JLCPCB:R_0402 | R7 |
| 1 | 3.3nF | PCM_JLCPCB:C_0603 | C10 |
| 1 | 330Ω | PCM_JLCPCB:R_0402 | R1 |
| 1 | 8.76k | PCM_JLCPCB:R_0402 | R8 |
| 1 | AMS1117 | PCM_JLCPCB:SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | U3 |
| 1 | Chainbus Out | Connector_PinSocket_2.54mm:PinSocket_2x16_P2.54mm_Vertical_SMD | J2 |
| 1 | Chainbus in | Connector_PinHeader_2.54mm:PinHeader_2x16_P2.54mm_Vertical_SMD | J1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_01x12 | Connector_JST:JST_PH_B12B-PH-K_1x12_P2.00mm_Vertical | J10 |
| 1 | DRV8830DGQR | DRV8830DGQR:IC_XTR111AIDGQR | U6 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LM2596HVS-ADJRG | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U4 |
| 1 | LOGO | QRcode:QR | G*** |
| 1 | LOGO | kurwinox:kurvinox | G*** |
| 1 | M2.5 Mount | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad_TopOnly | H1 |
| 1 | M24C64 | PCM_JLCPCB:SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL | U2 |
| 1 | MBRD10100CTTR | Package_TO_SOT_SMD:TO-252-2 | D2 |
| 1 | MBRD10100CTTR | SMC_MBRD10100CTTR:TO-252-3_L6.5-W5.8-P4.58-TL | D3 |
| 1 | MCP23008-xSO | Package_SO:SOIC-18W_7.5x11.6mm_P1.27mm | U7 |
| 1 | SN74CB3Q3384APW | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U1 |
| 1 | TCA9548APWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U5 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | ~ | PCM_JLCPCB:Part_Num_JLCPCB | PN1 |
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Questions
How big is the MMS3 hat konarm PCB?
It measures 100 × 50 mm and has 4 copper layers, 1.65 mm thick.
What parts does the MMS3 hat konarm use?
88 parts, built around the LM2596HVS-ADJRG, AMS1117, SN74CB3Q3384APW and MBRD10100CTTR. 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 MMS3 hat konarm KiCad files?
From the KoNarRobotics/MMS3_hat_konarm repository on GitHub, at the commit this page was made from: the board is PCB/MMS3_hat_konarm.kicad_pcb and its schematic PCB/Bus_switch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MMS3 hat konarm design in my own project?
Its repository states no licence, so its author keeps all rights: ask KoNarRobotics before reusing the design.