4 layers56.2 × 70.5 mm
2 layers30 × 45.5 mm
MP9943-DM1
vishnumda/MP9943-DM1MP9943 buck regulator evaluation board.
- Size
- 30 × 45.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 16
- Pads
- 60
- Tracks, vias
- 83, 81
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Feb 2025
- Updated
- 28 Feb 2025
Overview
MP9943-DM1 is an open-source printed circuit board by vishnumda, from the vishnumda/MP9943-DM1 repository on GitHub. It is a 2-layer board of 30 × 45.5 mm with 42 parts on 16 nets, routed with 83 tracks and 81 vias.
It is built around the MP9943GQ-Z, CL31A226KAHNNNE and CC0402KRX7R9BB104, with the RC0603FR-071K5L, WR06X1302FTL and SLO0630H150MTT among its other parts. Its parts include 8 resistors, 6 capacitors, 5 connectors, 2 diodes and 1 IC. It belongs with the power boards of this library.
Main components
11
MP9943GQ-Z
QFN-8(3x3)-40℃~+125℃@(TJ) 1 200kHz~2.2MHz、410kHz 3A 4V~36V 500uA 800mV~28.5V Adjustable Buck Buck Built-in Yes QFN-8(3x3) DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
CL31A226KAHNNNE
120622uF 25V X5R ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
CC0402KRX7R9BB104
0402100nF 50V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
RC0603FR-071K5L
UncategorisedUnknown maker
WR06X1302FTL
0603-55℃~+155℃ 100mW 13kΩ 75V Thick Film Resistor ±1% ±100ppm/℃ 0603 Chip Resistor - Surface Mount ROHSWalsin TechnologyChip Resistor - Surface Mount
SLO0630H150MTT
SMD,7.3x6.6mm115mΩ 15uH 3A 5A Magnetic Shielded Inductor ±20% SMD,7.3x6.6mm Power Inductors ROHSSunltechPower InductorsRT0603FRE101KL
0603-55℃~+155℃ 100mW 1kΩ Thin Film Resistor ±1% ±50ppm/℃ 0603 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountRP0603BRD074K53L
0603-55℃~+155℃ 100mW 4.53kΩ Thin Film Resistor ±0.1% ±25ppm/℃ 0603 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountWR06X4122FTL
0603-55℃~+155℃ 100mW 41.2kΩ 75V Thick Film Resistor ±1% ±100ppm/℃ 0603 Chip Resistor - Surface Mount ROHSWalsin TechnologyChip Resistor - Surface Mount
17-21SURC/S530-A3/TR8
0805-40℃~+85℃ 140° 20mA 2V 41mcd~61mcd 60mW 624nm 632nm Orange Red Water Clear 0805 LED Indication - Discrete ROHSEverlight ElectronicsLED Indication - Discrete17-21/S2C-FR1S2L/3T
0805-40℃~+85℃ 1.7V~2.4V 112mcd~285mcd 140° 602nm~610nm 611nm Orange Water Clear 0805 LED Indication - Discrete ROHSEverlight ElectronicsLED Indication - Discrete
README
Readme.mdMP9943-DM1
An MP9943 buck regulator evabluation board for testing the chip.
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 22uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C4, C5, C6 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C7 |
| 2 | G*** | kibuzzard-67C14D8F | kibuzzard-67C14D8F, kibuzzard-67C14D8F |
| 2 | Mounting Hole | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad | H1, H2 |
| 1 | 1.5K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 13K | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 15uH | Inductor_SMD:L_Sunlord_MWSA1004S | L1 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 20R | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 3V3 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | 4.53K | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 41.2K | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 51K | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 5V | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | 7.68K | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 8V | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3 |
| 1 | ENABLE | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J3 |
| 1 | G*** | kibuzzard-67C14AD8 | kibuzzard-67C14AD8 |
| 1 | G*** | kibuzzard-67C14AEB | kibuzzard-67C14AEB |
| 1 | G*** | kibuzzard-67C14D5C | kibuzzard-67C14D5C |
| 1 | G*** | kibuzzard-67C14DB9 | kibuzzard-67C14DB9 |
| 1 | G*** | kibuzzard-67C14B0F | kibuzzard-67C14B0F |
| 1 | G*** | kibuzzard-67C14E0F | kibuzzard-67C14E0F |
| 1 | G*** | kibuzzard-67C14D1F | kibuzzard-67C14D1F |
| 1 | G*** | kibuzzard-67C14D6A | kibuzzard-67C14D6A |
| 1 | G*** | kibuzzard-67C14D2D | kibuzzard-67C14D2D |
| 1 | G*** | kibuzzard-67C14B03 | kibuzzard-67C14B03 |
| 1 | G*** | kibuzzard-67C14D81 | kibuzzard-67C14D81 |
| 1 | G*** | kibuzzard-67C14E3E | kibuzzard-67C14E3E |
| 1 | INPUT | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J2 |
| 1 | INPUT/TEST | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J1 |
| 1 | MP9943 | ZD_Package_QFN_DFN:DFN-8-3x3mm_P0.65mm | U1 |
| 1 | OUTPUT | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J4 |
| 1 | OUTPUT/TEST | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J5 |
| 1 | VIN_PWR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | VOUT_PWR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
Questions
How big is the MP9943-DM1 PCB?
It measures 30 × 45.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MP9943-DM1 use?
42 parts, built around the MP9943GQ-Z, CL31A226KAHNNNE, CC0402KRX7R9BB104 and RC0603FR-071K5L. 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 MP9943-DM1 KiCad files?
From the vishnumda/MP9943-DM1 repository on GitHub, at the commit this page was made from: the board is MP9943-DM1.kicad_pcb and its schematic MP9943-DM1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MP9943-DM1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask vishnumda before reusing the design.
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