4 layers80 × 60 mm
Cm5-carrier
jl-grey-man/cm5-carrier
Minimal Raspberry Pi CM5 carrier board — USB-C, LiPo, HDMI, GPIO
48 parts
4 layers40 × 50 mm
PMM-1.0-R1
sneakylizard123-4/PMM-1.0-R1A breadboard friendly battery management module with charging, fuel gauging, and a switched 5V output.
- Size
- 40 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 74
- Nets
- 116
- Pads
- 344
- Tracks, vias
- 396, 80
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 5 Jul 2026
- Updated
- 23 Sep 2026
Overview
PMM-1.0-R1 is an open-source printed circuit board by sneakylizard123-4, from the sneakylizard123-4/PMM-1.0-R1 repository on GitHub. It is a 4-layer board of 40 × 50 mm with 74 parts on 116 nets, routed with 396 tracks and 80 vias.
It is built around the STM32C031C4T6, BQ25895RTW and TLV75733PDBV, with the TPS22917DBV and TPS61089 among its other parts. Its parts include 29 capacitors, 22 resistors, 6 ICs, 3 diodes and 2 inductors. It belongs with the STM32 boards of this library.
Main components
5
STM32C031C4T6
LQFP-48(7x7)-40℃~+85℃ 12KB 12bit 16KB 2V~3.6V 32 Bit 45 48MHz ARM Cortex-M0+ Built-in+External FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
BQ25895RTW
WQFN-24-EP(4x4)-40℃~+85℃ 1 12uA 3.9V~14V 4.608V 5A Charging IC I2C Lithium Battery Support Support QFN-24-EP(4x4) Battery Management ROHSTexas InstrumentsBattery Management
TLV75733PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 1A 3.3V 40uA 46dB@(100kHz) 5.5V 650mV@(1A) 71.5uVrms Fixed Positive Under Voltage Lockout、Over Current Protection、Over Temperature Protection、Soft Start SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TPS22917DBV
SOT-23-6-40℃~+125℃ 0V~5.5V 1 2A 80mΩ Active High Load Switch Output discharge function、Soft-start、Reverse current blocking SOT-23-6 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
TPS61089
UncategorisedTexas Instruments
README
README.mdPMM-1.0-R1 (Power Management Module)
A breadboard friendly battery management module with charging, fuel gauging, and a switched 5V output.
Custom Features
- BQ25895 2A buck charger with I2C control
- BQ27441-G1 fuel gauge
- TPS61089 boost converter for 5V output
- TPS22917 load
- TLV75733 3.3V LDO
- STM32C031C4T6 MCU
- 4-layer PCB, 50x30mm
PCB Design
this board is designed to fit on a breadboard without much hassle it is a 4-layer pcb with an inner ground layer
Firmware
PlatformIO project using internal 48MHz oscillator (no crystal).
- I2C1 (PA9/PA10): BQ25895 charger at 0x6B, BQ27441 fuel gauge at 0x55
- USART2 (PA2/PA3): 115200 debug/status output
- ADC1 (PA8): VBUS monitoring
- GPIO: load switch (PA0), charger CE (PA4), LED (PA6), SHDN (PA11), FORCE_ON (PA12)
Flash with PlatformIO:
pio run -t uploadBOM (Bill of Materials)
| Ref | Value | LCSC # | MPN | Manufacturer | Footprint | Qty | Unit $ | Ext $ | Link |
|---|---|---|---|---|---|---|---|---|---|
| C1-C3,C8,C10 | 47uF 1210 16V X5R | C6783889 | 1210X476M160CT | Walsin | 1210 | 5 | 0.0900 | 0.4500 | LCSC |
| C4,C7,C14,C27,C29 | 100nF 0402 25V X7R | C56392 | 0402B104K250NT | FH(Guangdong Fenghua) | 0402 | 5 | 0.0115 | 0.0575 | LCSC |
| C5 | 100nF 0805 50V X7R | C83055 | 0805B104K500CT | Walsin | 0805 | 1 | 0.0100 | 0.0100 | LCSC |
| C6,C22,C23,C28 | 10uF 0603 10V X5R | C19702 | CL10A106KP8NNNC | Samsung | 0603 | 4 | 0.0065 | 0.0260 | LCSC |
| C9 | 24pF 0402 C0G | C2242874 | C0402C240J4GACTU | KEMET | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| C11 | 560pF 0402 C0G 50V | C3895255 | C0402C0G500-561FNP | Venkel | 0402 | 1 | 0.0313 | 0.0313 | LCSC |
| C12,C19 | 100nF 0805 50V X7R | C83055 | 0805B104K500CT | Walsin | 0805 | 2 | 0.0100 | 0.0200 | LCSC |
| C13,C18 | 10uF 0805 10V X7R | C396720 | 0805B106K100CT | Walsin | 0805 | 2 | 0.0950 | 0.1900 | LCSC |
| C15 | 47uF 0805 10V X5R | C6119904 | CGA0805X5R476M100MT | HRE | 0805 | 1 | 0.1000 | 0.1000 | LCSC |
| C16 | 1uF 0805 16V X7R | C2991444 | 0805B105K160CT-C | Walsin | 0805 | 1 | 0.0230 | 0.0230 | LCSC |
| C17 | 0.47uF 0402 10V X5R | C47339 | CL05A474KP5NNNC | Samsung | 0402 | 1 | 0.0200 | 0.0200 | LCSC |
| C20 | 47nF 0603 25V X7R | C3881195 | C0603C473J3RAC7867 | KEMET | 0603 | 1 | 0.0100 | 0.0100 | LCSC |
| C21 | 4.7uF 0402 6.3V X5R | C340648 | 0402X475M6R3CT | Walsin | 0402 | 1 | 0.0240 | 0.0240 | LCSC |
| C24,C25 | 1uF 0603 16V X7R | C106248 | CC0603KRX7R7BB105 | YAGEO | 0603 | 2 | 0.0310 | 0.0620 | LCSC |
| C26 | 100nF 0603 50V X7R | C14663 | CC0603KRX7R9BB104 | YAGEO | 0603 | 1 | 0.0100 | 0.0100 | LCSC |
| D1-D3 | LED 0603 emerald green | C7429914 | NCD0603G3 | NATIONSTAR | 0603 | 3 | 0.0080 | 0.0240 | LCSC |
| L1 | 470nH shielded power inductor | C18221164 | XFL4015-471MEC | Coilcraft | SMD 4x4mm | 1 | 1.5000 | 1.5000 | LCSC |
| L2 | 2.2uH shielded power inductor 8A | C122469 | XFL4020-222MEC | Coilcraft | SMD 4x4mm | 1 | 1.5000 | 1.5000 | LCSC |
| R1,R16,R19,R20 | 10k 0603 1% | C98220 | RC0603FR-0710KL | YAGEO | 0603 | 4 | 0.0100 | 0.0400 | LCSC |
| R2 | 309k 0402 1% | C171694 | RC0402FR-07309KL | YAGEO | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| R3 | 133k 0402 1% | C3015855 | SCR0402F133K | VO | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| R4 | 28.7k 0402 1% | C185433 | RC0402FR-0728K7L | YAGEO | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| R5 | 240k 0603 1% | C137765 | RC0603FR-07240KL | YAGEO | 0603 | 1 | 0.0100 | 0.0100 | LCSC |
| R6 | 76.8k 0402 1% | C185396 | RC0402FR-0776K8L | YAGEO | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| R7 | 100k 0402 1% | C60491 | RC0402FR-07100KL | YAGEO | 0402 | 1 | 0.0060 | 0.0060 | LCSC |
| R8 | 100k 0603 1% | C14675 | RC0603FR-07100KL | YAGEO | 0603 | 1 | 0.0100 | 0.0100 | LCSC |
| R9 | 0.010 ohm 1% 2512 3W shunt | C520398 | LCSR2512FR010Q9L | RESI | 2512 | 1 | 0.1000 | 0.1000 | LCSC |
| R10-R14 | 10k 0402 1% | C60490 | RC0402FR-0710KL | YAGEO | 0402 | 5 | 0.0100 | 0.0500 | LCSC |
| R15 | 130 ohm 0805 1% | C273821 | RC0805FR-07130RL | YAGEO | 0805 | 1 | 0.0100 | 0.0100 | LCSC |
| R17 | 5.23k 0402 1% | C477746 | RC0402FR-075K23L | YAGEO | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| R18 | 30.1k 0402 1% | C138009 | RC0402FR-0730K1L | YAGEO | 0402 | 1 | 0.0100 | 0.0100 | LCSC |
| R21,R22 | 4.7k 0402 1% | C105871 | RC0402FR-074K7L | YAGEO | 0402 | 2 | 0.0100 | 0.0200 | LCSC |
| TH1 | 10k NTC thermistor 0402 | C77131 | NCP15XH103F03RC | muRata | 0402 | 1 | 0.0266 | 0.0266 | LCSC |
| U1 | TPS61089RNRR boost converter | C165129 | TPS61089RNRR | Texas Instruments | VQFN-11 | 1 | 0.5800 | 0.5800 | LCSC |
| U2 | TPS22917DBVR load switch | C2681320 | TPS22917DBVR | Texas Instruments | SOT-23-6 | 1 | 0.4600 | 0.4600 | LCSC |
| U3 | BQ27441DRZR-G1B fuel gauge | C473374 | BQ27441DRZR-G1B | Texas Instruments | SON-12 | 1 | 2.7600 | 2.7600 | LCSC |
| U4 | BQ25895RTWR charger | C80200 | BQ25895RTWR | Texas Instruments | WQFN-24 | 1 | 2.1700 | 2.1700 | LCSC |
| U5 | TLV75733PDBVR 3.3V LDO | C485517 | TLV75733PDBVR | Texas Instruments | SOT-23-5 | 1 | 0.1950 | 0.1950 | LCSC |
| U6 | STM32C031C4T6 MCU | C5456207 | STM32C031C4T6 | STMicroelectronics | LQFP-48 | 1 | 1.6700 | 1.6700 | LCSC |
| PCB | Bare PCB 50x30mm 4-layer | - | - | - | - | 1 | 2.5000 | 2.5000 | - |
| Total | - | - | - | - | - | 64 | - | 14.7354 | - |
Full BOM CSV: BOM.csv
Production
This board is designed for a standard 4-layer PCB fab:
- 4 layers
- HASL Lead Free
- 1.6mm board
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0402_1005Metric | C4, C7, C14, C27, C29 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R10, R11, R12, R13, R14 |
| 5 | 47uF | Capacitor_SMD:C_1210_3225Metric | C1, C2, C3, C8, C10 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R16, R19, R20 |
| 4 | 10uF | Capacitor_SMD:C_0603_1608Metric | C6, C22, C23, C28 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2, TP3, TP4 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C12, C19 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C13, C18 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C24, C25 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R21, R22 |
| 1 | 0.010 1% | Resistor_SMD:R_2512_6332Metric | R9 |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 0.47uF | Capacitor_SMD:C_0402_1005Metric | C17 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C26 |
| 1 | 10k NTC | Resistor_SMD:R_0402_1005Metric | TH1 |
| 1 | 130 1% | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 133k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C16 |
| 1 | 2.2uH Coilcraft XAL4020-222MEC | Inductor_SMD:L_Coilcraft_XxL4020 | L2 |
| 1 | 240k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 24pF | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 28.7k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 30.1k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 309k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C21 |
| 1 | 470nH Coilcraft XFL4015-471MEC | Inductor_SMD:L_Coilcraft_XxL4020 | L1 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C20 |
| 1 | 47uF | Capacitor_SMD:C_0805_2012Metric | C15 |
| 1 | 5.23k | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 560pF | Capacitor_SMD:C_0402_1005Metric | C11 |
| 1 | 76.8k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | BQ25895RTW | Package_DFN_QFN:Texas_RTW_WQFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm_ThermalVias | U4 |
| 1 | BQ27441-G1 | Package_SON:Texas_S-PDSO-N12 | U3 |
| 1 | LOGO | logo:empire_mask | G*** |
| 1 | LOGO | logo:linuxpenguin_cu | G*** |
| 1 | LOGO | logo:linuxpenguin-mask | G*** |
| 1 | LOGO | logo:empire_cu | G*** |
| 1 | PMM | PMM:PMM | A1 |
| 1 | STM32C031C4T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U6 |
| 1 | TLV75733PDBV | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | TPS22917DBV | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | TPS61089 | Package_DFN_QFN:Texas_VQFN-RNR0011A-11 | U1 |
The 72 most common of 74 parts.
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Questions
How big is the PMM-1.0-R1 PCB?
It measures 40 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the PMM-1.0-R1 use?
74 parts, built around the STM32C031C4T6, BQ25895RTW, TLV75733PDBV and TPS22917DBV. 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 PMM-1.0-R1 KiCad files?
From the sneakylizard123-4/PMM-1.0-R1 repository on GitHub, at the commit this page was made from: the board is kicad/PMM-1.0-R1.kicad_pcb and its schematic kicad/PMM-1.0-R1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PMM-1.0-R1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask sneakylizard123-4 before reusing the design.