2 layers99.3 × 47.5 mm
Relay hat v1
bobby1321/High-Current-5V-Regulator
High Current 5V DC Buck Converter Board
58 parts1GPL-3.0
2 layers99.3 × 47.5 mm
5v regulator v1
bobby1321/High-Current-5V-Regulator1High Current 5V DC Buck Converter Board
- Size
- 99.3 × 47.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 35
- Pads
- 153
- Tracks, vias
- 232, 244
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 31 Aug 2024
- Updated
- 14 Feb 2025
Overview
5v regulator v1 is an open-source printed circuit board by bobby1321, from the bobby1321/High-Current-5V-Regulator repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 99.3 × 47.5 mm with 59 parts on 35 nets, routed with 232 tracks and 244 vias.
It is built around the TPS51386RJNR and USB-A1SSW6. Its parts include 15 resistors, 12 capacitors, 6 connectors, 3 ICs and 2 diodes. It belongs with the power boards of this library.
Main components
2README
README.mdHigh Current 5V DC Buck Converter Board
This board is a high current (8A) buck converter based around the TPS51386 for providing USB power to multiple devices from one board. Focused around working from a 4S Lithium Ion battery, it should work for any input voltage source from 10V-26V DC. The board also incorporates two INA219A PMICs for monitoring input & output power over I2C.
Also included in this repo is a small 4S Li-Ion battery voltage meter.
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7 |
| 4 | 22uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C8, C9, C10, C11 |
| 3 | 0.1uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C7, C13 |
| 3 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R11, R12 |
| 2 | 0.005 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R10 |
| 2 | 10 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R15, R16 |
| 2 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 2 | 120 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9 |
| 2 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4, J6 |
| 2 | INA219AIDR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U3 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 2 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2 |
| 2 | USB-A1SSW6 | Connector_USB:USB_A_Wuerth_61400826021_Horizontal_Stacked | J2, J3 |
| 1 | 0 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R17 |
| 1 | 0F | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C5 |
| 1 | 1.5uH | TPS51386:L_Panasonic_ETQP4M---KVK | L1 |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2 |
| 1 | 150k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4 |
| 1 | 18k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 1uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C4 |
| 1 | 22pF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C6 |
| 1 | 4.7k | Potentiometer_SMD:Potentiometer_Bourns_TC33X_Vertical | RV1 |
| 1 | 5A | Fuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1 |
| 1 | 6.8k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | LOGO | TPS51386:qrcode1 | G*** |
| 1 | LOGO | TPS51386:stetson | G*** |
| 1 | LOGO | TPS51386:furry_thomas | G*** |
| 1 | Q_Dual_NMOS_S1G1D2S2G2D1 | Package_TO_SOT_SMD:SOT-363_SC-70-6_Handsoldering | Q1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | Screw_Terminal_01x04 | TerminalBlock:TerminalBlock_bornier-4_P5.08mm | J5 |
| 1 | TPS51386RJNR | TPS51386:VQFN-HR12_RJN_TEX | U1 |
| 1 | TestPoint | TPS51386:usb_symbol | TP8 |
The 55 most common of 59 parts.
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Questions
How big is the 5v regulator v1 PCB?
It measures 99.3 × 47.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 5v regulator v1 use?
59 parts, built around the TPS51386RJNR and USB-A1SSW6. 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 5v regulator v1 KiCad files?
From the bobby1321/High-Current-5V-Regulator repository on GitHub, at the commit this page was made from: the board is KiCad/5v-regulator-v1/5v-regulator-v1.kicad_pcb and its schematic KiCad/4S-Li-ion-battery-meter/4S-Li-ion-battery-meter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 5v regulator v1 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).