2 layers
2 layers180.3 × 63.5 mm
Power Systems
nick19curtin/PowerSystemsPL-BMS- Size
- 180.3 × 63.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 138
- Nets
- 157
- Pads
- 514
- Tracks, vias
- 439, 46
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 5 Jun 2026
- Updated
- 8 Jul 2026
Overview
Power Systems is an open-source printed circuit board by nick19curtin, from the nick19curtin/PowerSystemsPL-BMS repository on GitHub. It is a 2-layer board of 180.3 × 63.5 mm with 138 parts on 157 nets, routed with 439 tracks and 46 vias.
It is built around the LM358, LM2596S-3.3 and LM2596S-5.0, with the LMV331TP, LM2903 and SN74AHC1G00DBVR among its other parts. Its parts include 61 resistors, 25 ICs, 21 capacitors, 15 transistors and 7 diodes. It belongs with the ESP32 boards of this library.
Main components
11
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
LM2596S-3.3
TO-263-5L-20℃~+70℃ 1 170kHz 2mA 3.3V 3A 4.5V~40V Buck Buck Built-in Fixed No TO-263-5L DC-DC Converters ROHSGRDC-DC ConvertersLM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
LMV331TP
SOT-23-5-55℃~+125℃ 0.8uV/℃ 1 1.8V~5.5V 1pA 2pA 50uA 7V 800uV 950ns Open-drain Rail-to-rail input SOT-23-5 Comparators ROHSTECH PUBLICComparatorsLM2903
SOP-8-18V~-1V、1V~18V 0℃~+70℃ 10mV 1mV 2 25nA 2V~36V 36V 400uA 5nA DTL、TTL、CMOS、ECL、MOS Open Collector SOP-8 Comparators ROHSHXY MOSFETComparatorsSN74AHC1G00DBVR
SOT-23-5-40℃~+125℃ 1 1.9V~2V、2.4V~2.58V、3.7V~4.4V 100mV、360mV~550mV 1uA 2 2.1V、3.85V 2V~5.5V 500mV、900mV、1.65V 7.5ns@5V,50pF 74AHC 8mA 8mA NAND Gate SOT-23-5 Logic Gates ROHSTECH PUBLICLogic Gates
DS1812R-10+T&R
SOT-23-40℃~+85℃ 0V~5.5V 1 150ms 30uA 4.35V Active High No No Power Supervisor Push-pull SOT-23 Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICs
TPS61165DRV
UncategorisedTexas Instruments
IRLR7843-DO
TO-252UncategorisedDOINGTER
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
SMCJ45A
SMC-65℃~+150℃ 1.5kW 1uA 20.6A 45V 55.3V 72.7V TVS SMC ESD and Surge Protection (TVS/ESD) ROHSMDDESD And Surge Protection (TVS/ESD)
Parts
138| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 2N7002 | ESP32 Dev Kit:SOT-23TO-236_318-08_ONS-M | Q26, Q27, Q28, Q29, Q30, Q31, Q32, Q33, Q34, Q35, Q36, Q37 |
| 9 | 10k | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R114, R123, R124, R132, R138, R139, R140, R141, R144 |
| 7 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C33, C34, C36, C38, C39, C41, C42 |
| 7 | 220 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R125, R126, R129, R130, R136, R137, R147 |
| 7 | LMV331 | ESP32 Dev Kit:SC70-5_DCK_TEX-M | U33, U34, U35, U36, U37, U38, U43 |
| 6 | LM2903 | Package_DIP:DIP-8_W7.62mm | U27, U28, U29, U30, U31, U32 |
| 4 | 100 | Resistor_SMD:R_1206_3216Metric | R90, R91, R92, R93 |
| 4 | 10nF | Capacitor_SMD:C_0805_2012Metric | C43, C44, C45, C46 |
| 4 | 1k | Resistor_SMD:R_1206_3216Metric | R86, R87, R88, R89 |
| 4 | Conn_01x19 | Connector_PinSocket_2.54mm:PinSocket_1x19_P2.54mm_Vertical | J5, J5, J6, J6 |
| 4 | R_Dis | Resistor_SMD:R_1206_3216Metric | R82, R83, R84, R85 |
| 4 | SN74AHC1G00DBVR | ESP32 Dev Kit:DBV5-M | U39, U40, U41, U42 |
| 3 | 1M | Resistor_SMD:R_2512_6332Metric | R75, R79, R80 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric | R72, R74 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C57, C58 |
| 2 | 10k | Resistor_SMD:R_2512_6332Metric | R76, R77 |
| 2 | 18k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R113, R131 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R127, R128 |
| 2 | 220uF | Capacitor_SMD:C_0603_1608Metric | C35, C37 |
| 2 | 2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R118, R135 |
| 2 | 30k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R116, R133 |
| 2 | 33uH | Inductor_SMD:L_Bourns_SRR1208_12.7x12.7mm | L3, L4 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3 |
| 2 | 680uF | Capacitor_SMD:C_0603_1608Metric | C31, C32 |
| 2 | 68k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R117, R134 |
| 2 | Conn_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | BATT Conn, LOAD Conn |
| 2 | IRLR7843 | Package_TO_SOT_SMD:TO-252-2 | Q19, Q21 |
| 2 | LM358 | Package_DIP:DIP-8_W7.62mm | U25, U26 |
| 2 | SS34 | Diode_SMD:D_SMA | D13, D14 |
| 1 | 1.25V | Diode_SMD:D_SOD-123 | D15 |
| 1 | 1.5k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R111 |
| 1 | 1.6k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R112 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 10uH | Inductor_SMD:L_Bourns_SRR1208_12.7x12.7mm | L1 |
| 1 | 110k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R146 |
| 1 | 110k | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | R2 |
| 1 | 124K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R115 |
| 1 | 13k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R142 |
| 1 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 1k | Resistor_SMD:R_2512_6332Metric | R78 |
| 1 | 2Meg | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R122 |
| 1 | 3.3M | Resistor_SMD:R_2512_6332Metric | R73 |
| 1 | 390k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R121 |
| 1 | 4.3k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R143 |
| 1 | 4.7uF | Capacitor_SMD:C_1206_3216Metric | C40 |
| 1 | 47k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R120 |
| 1 | 50k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R119 |
| 1 | D | Diode_SMD:D_SOD-123 | D17 |
| 1 | DS1812R-10+T&R | ESP32 Dev Kit:21-0051H_MXM-M | U6 |
| 1 | D_Zener | Diode_SMD:D_0805_2012Metric | D16 |
| 1 | ESP32-DEVKIT-V1 | ESP32 Dev Kit:MODULE_ESP32_DEVKIT_V1 | U21 |
| 1 | INA296A3IDDFR | ESP32 Dev Kit:SOT65P280X110-8N | IC1 |
| 1 | LM2596S-3.3 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U22 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U23 |
| 1 | PMOS | Package_TO_SOT_SMD:TO-252-2 | Q20 |
| 1 | R_Variable | ESP32 Dev Kit:MF52C1103F3380_Thermistor-317-1376-ND-MF52C1103F3380 | R145 |
| 1 | SMCJ45A | Diode_SMD:D_SMC | D12 |
| 1 | TPS61165DRV | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U1 |
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Questions
How big is the Power Systems PCB?
It measures 180.3 × 63.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Power Systems use?
138 parts, built around the LM358, LM2596S-3.3, LM2596S-5.0 and LMV331TP. 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 Power Systems KiCad files?
From the nick19curtin/PowerSystemsPL-BMS repository on GitHub, at the commit this page was made from: the board is Power Systems/Power Systems.kicad_pcb and its schematic PCB/Project Lab 3 BMS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power Systems design in my own project?
Its repository states no licence, so its author keeps all rights: ask nick19curtin before reusing the design.