2 layers215.9 × 70.6 mm
2 layers103 × 65 mm
Secondlevel
EdwardNatasaputra/powerBoard1PowerBoard
- Size
- 103 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 128
- Nets
- 106
- Pads
- 385
- Tracks, vias
- 1,261, 92
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Aug 2026
- Updated
- 16 Sep 2026
Overview
Secondlevel is an open-source printed circuit board by EdwardNatasaputra, from the EdwardNatasaputra/powerBoard repository on GitHub. It is a 2-layer board of 103 × 65 mm with 128 parts on 106 nets, routed with 1,261 tracks and 92 vias.
It is built around the MP1584EN, MCP6002-I/SNVAO and AMS1117-3.3, with the DS3231MZ+ and SS34 among its other parts. Its parts include 47 resistors, 39 capacitors, 11 ICs, 8 diodes and 6 connectors. It belongs with the STM32 boards of this library.
Main components
5MP1584EN
SOIC-8-EP-20℃~+85℃ 1 100kHz~1.5MHz 4.5V~28V Adjustable Buck Buck Built-in SOIC-8-EP DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
MCP6002-I/SNVAO
SOIC-8-150mil-40℃~+125℃ 1.8V~6V 100uA 1MHz 1pA 1pA 2 23mA 28nV/√Hz@1kHz 2uV/℃ 4.5mV 600V/ms 76dB Rail-to-Rail Input, Rail-to-Rail Output SOIC-8-150mil Operational Amplifier ROHSMicrochip TechnologyOperational Amplifier
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsDS3231MZ+
SOIC-8-40℃~+85℃ 2.3V~5.5V I2C Temperature compensation、Backup power management and battery charging、Alarm function、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdpowerBoard
PowerBoard
Parts
128| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100 | Resistor_SMD:R_0603_1608Metric | R103, R104, R105, R106, R109, R110, R111, R112, R113, R114, R115 |
| 8 | 100nF | Capacitor_SMD:C_0603_1608Metric | C43, C45, C50, C52, C55, C57, C59, C63 |
| 8 | 100nf | Capacitor_SMD:C_0603_1608Metric | C101, C103, C104, C105, C108, C109, C110, C111 |
| 7 | 4.7k | Resistor_SMD:R_0603_1608Metric | R119, R120, R121, R122, R123, R126, R129 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R101, R102, R116, R125, R127, R128 |
| 6 | SS34 | Diode_SMD:D_SMA | D15, D16, D17, D18, D19, D20 |
| 5 | 1uf | Capacitor_SMD:C_0603_1608Metric | C112, C113, C114, C115, C116 |
| 4 | 220 | Resistor_SMD:R_0603_1608Metric | R107, R108, R118, R124 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H5, H6, H7, H8 |
| 3 | 200KΩ | Resistor_SMD:R_0603_1608Metric | R46, R52, R58 |
| 3 | 220pF | Capacitor_SMD:C_0603_1608Metric | C44, C51, C58 |
| 3 | MP1584EN | Custom_Footprints:SOIC127P600X170-9N | U9, U10, U11 |
| 3 | NS | Capacitor_SMD:C_0603_1608Metric | C46, C53, C60 |
| 2 | 220µF | Capacitor_SMD:CP_Elec_8x10.5 | C41, C48 |
| 2 | 22pf | Capacitor_SMD:C_0603_1608Metric | C106, C107 |
| 2 | 330µF | Capacitor_SMD:CP_Elec_8x10.5 | C61, C62 |
| 2 | 40.2KΩ | Resistor_SMD:R_0603_1608Metric | R48, R54 |
| 2 | 68.1KΩ | Resistor_SMD:R_0603_1608Metric | R53, R59 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D101, D102 |
| 2 | SW_Push | Library:Pushbutton_3x4x2mm_2P_SMD | SW101, SW102 |
| 1 | 10KΩ | Resistor_SMD:R_0603_1608Metric | R57 |
| 1 | 10µF | Capacitor_SMD:CP_Elec_5x5.4 | C42 |
| 1 | 10µF | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B | C56 |
| 1 | 10µF | Capacitor_SMD:CP_Elec_6.3x5.4 | C49 |
| 1 | 10µH | Inductor_SMD:L_7.3x7.3_H4.5 | L6 |
| 1 | 10µH | Inductor_SMD:L_Bourns-SRR1005 | L5 |
| 1 | 11KΩ | Resistor_SMD:R_0603_1608Metric | R51 |
| 1 | 11KΩ/1% | Resistor_SMD:R_0603_1608Metric | R45 |
| 1 | 12VTP | TestPoint:TestPoint_Pad_D1.5mm | TP6 |
| 1 | 149KΩ | Resistor_SMD:R_0603_1608Metric | R50 |
| 1 | 149KΩ/1% | Resistor_SMD:R_0603_1608Metric | R44 |
| 1 | 150KΩ | Capacitor_SMD:C_0603_1608Metric | R61 |
| 1 | 2.2uf | Capacitor_SMD:C_0603_1608Metric | C102 |
| 1 | 20KΩ | Resistor_SMD:R_0603_1608Metric | R56 |
| 1 | 210KΩ | Resistor_SMD:R_0603_1608Metric | R55 |
| 1 | 22µF | Capacitor_SMD:CP_Elec_6.3x5.4 | C47 |
| 1 | 22µH | Inductor_SMD:L_7.3x7.3_H4.5 | L4 |
| 1 | 24VDC | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J11 |
| 1 | 3.8VTP | TestPoint:TestPoint_Pad_D1.5mm | TP8 |
| 1 | 40.2KΩ | Capacitor_SMD:C_0603_1608Metric | R60 |
| 1 | 470µF | Capacitor_SMD:CP_Elec_8x10.5 | C54 |
| 1 | 562KΩ | Resistor_SMD:R_0603_1608Metric | R49 |
| 1 | 5VTP | TestPoint:TestPoint_Pad_D1.5mm | TP7 |
| 1 | 68.1KΩ/1% | Resistor_SMD:R_0603_1608Metric | R47 |
| 1 | 8Mhz | Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm | Y101 |
| 1 | A7600_Pinout | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | U101 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223 | U103 |
| 1 | AT24C512-SSHM | Custom_Library:SOIC127P600X175-8N | U106 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_500 | BT101 |
| 1 | Conn_01x02_Male | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J101 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | Conn_01x04_Female | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J103 |
| 1 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J13 |
| 1 | Conn_STLink | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J102 |
| 1 | DS3231M | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U105 |
| 1 | LDR07 | OptoDevice:R_LDR_5.1x4.3mm_P3.4mm_Vertical | R117 |
| 1 | LM358PSR | Custom_Library:SOIC127P780X200-8N | U108 |
| 1 | MCP6002-I_SN | Custom_Library:SOIC127P600X175-8N | U104 |
| 1 | PC817 | Custom_Library:SOP254P975X460-4N | U107 |
| 1 | RKZ-1212S_P | Custom_Library:CONV_RKZ-1212S_P | PS101 |
| 1 | Resettable Fuse/2A | Fuse:Fuse_1812_4532Metric | F5 |
| 1 | Resettable Fuse/2A | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F6 |
| 1 | STM32F401CCUx | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U102 |
Questions
How big is the Secondlevel PCB?
It measures 103 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Secondlevel use?
128 parts, built around the MP1584EN, MCP6002-I/SNVAO, AMS1117-3.3 and DS3231MZ+. 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 Secondlevel KiCad files?
From the EdwardNatasaputra/powerBoard repository on GitHub, at the commit this page was made from: the board is ACW_First/secondlevel.kicad_pcb and its schematic ACW_First/24_to_12.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Secondlevel design in my own project?
Its repository states no licence, so its author keeps all rights: ask EdwardNatasaputra before reusing the design.
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