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4 layers150 × 100 mmLV Regulator, the printed circuit board in 3D

Low Voltage Power Supply Unit of Formula Student team "Black Hornets" from the University of Novi Sad Faculty of Technical Sciences

Size
150 × 100 mm
Copper layers
4
Thickness
1.6 mm
Parts
200
Nets
138
Pads
539
Tracks, vias
928, 134
Pours
23
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
19 Jan 2026
Updated
22 Jun 2026

Overview

LV Regulator is an open-source printed circuit board by usern4mehere9, from the usern4mehere9/LVPSU repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 150 × 100 mm with 200 parts on 138 nets, routed with 928 tracks and 134 vias.

It is built around the BQ25858QWRRVRQ1, CSD19506KTT and MIC29152WU, with the SS14 and BC807 among its other parts. Its parts include 54 resistors, 37 capacitors, 16 diodes, 9 ICs and 5 connectors. It belongs with the power boards of this library.

Main components

5

README

README.md

LVPSU

Low Voltage Power Supply Unit of Formula Student team "Black Hornets" from the University of Novi Sad Faculty of Technical Sciences

LV_Regulator connectors:

PWR_IN:

1 [GND] BAT-

2 [GND] BAT-

3 [GND] BAT-

4 [GND] BAT-

5 [VCC] BAT+

6 [VCC] BAT+

7 [VCC] BAT+

8 [VCC] BAT+

COM:

1 [COM] RS485-B

2 [COM] RS485-A

3 [GND] GND_ISO

4 [VCC] +5V_ISO

START:

1 [GND] GND

2 [GND] GND

3 [VCC] 5V_EXT

4 [VCC] 3V3_EXT

PWR_OUT:

1 [VCC] VOUT

2 [VCC] VOUT

3 [VCC] VOUT

4 [VCC] VOUT

5 [GND] GND

6 [GND] GND

7 [GND] GND

8 [GND] GND

LV_Kontrola subsomponent connectors:

  1. LV_Kontrola_Main connectors:

2. LV_Kontrola_Infeed_Battery connectors:

3. LV_Kontrola_Start connectors:

START_PWR:

1 [GND] GND_START

2 [GND] GND_START

3 [GND] GND_START

4 [GND] GND_START

5 [VCC] VCC_START

6 [VCC] VCC_START

7 [VCC] VCC_START

8 [VCC] VCC_START

COM:

1 [GND] GND_START

2 [COM] RS485-B

3 [GND] GND_START

4 [COM] RS485-A

START_OUT_A:

1 [VCC] 5V4_ISO_1

2 [GND] GND_ISO_1

3 [VCC] 5V4_ISO_2

4 [GND] GND_ISO_2

5 [VCC] 5V4_ISO_3

6 [GND] GND_ISO_3

7 [VCC] 5V4_ISO_4

8 [GND] GND_ISO_4

9 [VCC] 3V7_ISO_1

10 [GND] GND_ISO_1

11 [VCC] 3V7_ISO_2

12 [GND] GND_ISO_2

13 [VCC] 3V7_ISO_3

14 [GND] GND_ISO_3

15 [VCC] 3V7_ISO_4

16 [GND] GND_ISO_4

START_OUT_B:

1 [VCC] 5V4_ISO_8

2 [GND] GND_ISO_8

3 [VCC] 5V4_ISO_7

4 [GND] GND_ISO_7

5 [VCC] 5V4_ISO_6

6 [GND] GND_ISO_6

7 [VCC] 5V4_ISO_5

8 [GND] GND_ISO_5

9 [VCC] 3V7_ISO_8

10 [GND] GND_ISO_8

11 [VCC] 3V7_ISO_7

12 [GND] GND_ISO_7

13 [VCC] 3V7_ISO_6

14 [GND] GND_ISO_6

15 [VCC] 3V7_ISO_5

16 [GND] GND_ISO_5

Parts

200
QtyValueFootprintReferences
16TestPointTestPoint:TestPoint_Pad_1.0x1.0mmTP22, TP27, TP28, TP29, TP30, TP31, TP32, TP33, TP34, TP35, TP36, TP37, TP46, TP47, TP49, TP50
9---Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR1, R3, R42, R43, R44, R45, R46, R47, R48
9100nFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC1, C2, C13, C14, C17, C18, C22, C24, C25
9130Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR11, R13, R14, R16, R17, R18, R19, R20, R21
6GroundTestPoint:TestPoint_Pad_1.0x1.0mmTP39, TP40, TP41, TP42, TP43, TP44
6SS14SS14:CR_SMA_403AE_OSID2, D3, D4, D5, D6, D7
6SolderJumper_3_OpenJumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP10, JP11, JP12, JP13, JP14, JP15
510uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC4, C6, C7, C10, C23
4100nFCapacitor_SMD:C_1206_3216MetricC26, C27, C35, C36
4CSD19506KTTCSD19506KTT:DDPAK&slash_TO-263_KTT_TEXU5, U6, U7, U8
30.1uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC3, C5, C19
310KResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR8, R9, R24
310kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR6, R53, R54
3270Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR10, R12, R15
3ADR3Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP5, JP6, JP7
210Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR51, R52
212pFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC16, C21
21AFuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolderF3, F4
21MResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR32, R39
21kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR34, R36
21uFCapacitor_SMD:C_1206_3216MetricC29, C30
222kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR35, R41
222uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC9, C12
227RResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR25, R26
24.7uFCapacitor_SMD:C_1206_3216MetricC28, C37
2430450400microfit-4pin:CONN_SD-43045-001_04_MOLJ1, J2
2430450800microfit-8pin:CONN_SD-43045-001_08_MOLJ3, J4
247uFCapacitor_SMD:CP_Elec_10x10C32, C33
247uFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC8, C11
25K1Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR22, R23
28pFCapacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolderC15, C20
2LEDDiode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolderD8, D9
2MIC29152WUMIC29152WU:MIC29152WUIC2, IC3
1100kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR30
110AFuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolderF2
110uHInductor_SMD:L_APV_APH1770L1
1115kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR33
1120Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR2
112V BAT+TestPoint:TestPoint_Pad_1.0x1.0mmTP4
112V BAT-TestPoint:TestPoint_Pad_1.0x1.0mmTP51
1132kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR28
1180uFul_UCZ1J181MNQ1MS:CAP_UCD_12P5X13P5_NCHC34
11K5Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR27
11N4148Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolderD1
12.2kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR49
12169890001USB_C:MOLEX_2169890001J6
125CSM04xxSNPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU3
1311kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR40
132.768kHzCrystal:Crystal_SMD_EuroQuartz_EQ161-2Pin_3.2x1.5mm_HandSolderingY1
133kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR5
134kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR7
13V3LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED7
13V3_EXTLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED4
13V3_INTLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED2
13V3_VBATTestPoint:TestPoint_Pad_1.0x1.0mmTP6
141.52.9.005.0010LIB_41.52.9.005.0010:415290050010K1
14k7Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR4
150kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR38
156uFCapacitor_SMD:CP_Elec_10x10C31
157kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR31
15VLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED6
15V_EXTLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED3
15V_INTLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED1
15mFCSL110R005FER:RESC50110X70NR50
167kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR29
180kResistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolderR37
18AFuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolderF1
18MHzCrystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSolderingY2
1ACOV TPTestPoint:TestPoint_Pad_1.0x1.0mmTP8
1ACUV TPTestPoint:TestPoint_Pad_1.0x1.0mmTP7
1ADM2483xRWPackage_SO:SOIC-16W_7.5x10.3mm_P1.27mmU1
1ADR1Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP9
1ADR2Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP8
1BC807Package_TO_SOT_SMD:SOT-23W_HandsolderingQ1
1BOOT0Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP3
1BOOT1Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mmJP4
1BQ25858QWRRVRQ1ul_BQ25858QWRRVRQ1:RRV0036B-IPC_AU4
1ERRLED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolderLED9
1I2C-SCL TPTestPoint:TestPoint_Pad_1.0x1.0mmTP13
1I2C-SDA TPTestPoint:TestPoint_Pad_1.0x1.0mmTP14

The 172 most common of 200 parts.

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Questions

How big is the LV Regulator PCB?

It measures 150 × 100 mm and has 4 copper layers, 1.6 mm thick.

What parts does the LV Regulator use?

200 parts, built around the BQ25858QWRRVRQ1, CSD19506KTT, MIC29152WU and SS14. 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 LV Regulator KiCad files?

From the usern4mehere9/LVPSU repository on GitHub, at the commit this page was made from: the board is LV_Regulator/LV_Regulator/LV_Regulator.kicad_pcb and its schematic LV_Kontrola_Main/LV_Kontrola/LV_Kontrola/LV_Kontrola_Main.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the LV Regulator design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).