4 layers91.8 × 92 mm
2 layers90 × 90 mm
PocketPSU elec main
jarrod89/pocketPSU2Input1: - Output1 can be used to supply pocketPSU via a battery - Optional battery charging capability (addon board with BMS)
- Size
- 90 × 90 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 97
- Nets
- 69
- Pads
- 437
- Tracks, vias
- 865, 209
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 7 Aug 2024
- Updated
- 15 Oct 2024
Overview
PocketPSU elec main is an open-source printed circuit board by jarrod89, from the jarrod89/pocketPSU repository on GitHub. It is a 2-layer board of 90 × 90 mm with 97 parts on 69 nets, routed with 865 tracks and 209 vias.
It is built around the ESP32-S3-MINI-1-N4R2, TJA1044GT/3Z and FUSB302MPX, with the TPS5430DDAR, AMS1117-3.3 and TXS0102DCU among its other parts. Its parts include 30 capacitors, 23 resistors, 7 ICs, 5 diodes and 5 connectors. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-S3-MINI-1-N4R2
SMD-103.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
TJA1044GT/3Z
SO-8-40℃~+150℃ 15uA 4.5V~5.5V 5Mbps 80mA CAN FD Transceiver SO-8 CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
FUSB302MPX
WFQFN-14(2.5x2.5)-40℃~+85℃ 2.8V~5.5V 25uA 25uA Controller USB 3.1 WFQFN-14(2.5x2.5) USB Converters ROHSonsemiUSB Converters
TPS5430DDAR
SOIC-8-EP-40℃~+125℃@(TJ) 1 1.221V~32.04V 3A 4.4mA 5.5V~36V 500kHz Adjustable Buck Buck Built-in No SOIC-8-EP DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TXS0102DCU
TSSOP82-Bit Bidirectionnal Voltage-Level Translator for Open-Drain and Push-Pull ApplicationsTexas InstrumentsUncategorised
TS-1187A-B-A-B
SMD-4P,5.1x5.1mm-30℃~+85℃ 1.5mm 1.6N 100,000 cycles 12V 5.1mm 5.1mm 50mA Gold No Round Button SPST Surface Mount,Vertical Without Bracket SMD-4P,5.1x5.1mm Tactile Switches ROHSXKB ConnectionTactile Switches
F.0603.00026/P2-0603B1TS2-06T-001
0603LED Indication - DiscreteTUOZHAN
EC11J1525402
SMD-40℃~+85℃ 10mA 30/15 5V Incremental Support Two-phase output SMD Rotary Encoders ROHSALPSALPINERotary Encoders
KH-TYPE-C-16P
SMD-40℃~+85℃ 1 10,000 cycles 16P 30V 3A 7.81mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSkinghelmUSB ConnectorsKT-0603R
0603-40℃~+85℃ 1.6mm x 0.8mm square LED 1.8V~2.4V 120° 20mA 300mcd 40mW 615nm~630nm 645nm Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
NRS6028T220MMGJV
SMD,6x6mm1.3A 1.3A 135mΩ 22uH ±20% SMD,6x6mm Power Inductors ROHSTaiyo YudenPower Inductors
README
README.mdpocketPSU
Specs
Output1:
- Efuse protected USBPD output
- 3A, 20V
- setting resolution depends on capability of USB-C brickw. If using a PPS capable supply, 10mV CV and 50mA CC settings
- By default this output is disabled as the PD command will track output 3 for minimal power loss in LDO
- Must be lower than output2
Input1:
- Output1 can be used to supply pocketPSU via a battery
- Optional battery charging capability (addon board with BMS)
Output2:
- (optional) Boost output with efuse protection (no dedicated CC)
- 1A 3.3-30V
- By default this tracks output3 for minimal power loss in LDO
- Must be higher than output1 and output3
Output3:
- LDO output for low ripple
- 1A 0-30V (limited current based on input/output delta)
- Must be lower than output1
User interface
The user interface will consist of:
- One LCD screen
- One rotary encode + integrated switch. The switch could serve as a way to switch between fine and coarse setting
- One button to turn the power output on/off
- Three buttons for navigation:
- Up
- Down
- Select
Powering the PSU
The supply can be powered over USB-C or using an external battery. The battery could potentially be a power tool battery that users already have on hand.
Parts
97| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R4, R6, R7, R8, R9, R10, R11, R17, R18, R23 |
| 11 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TPCC1, TPCC2, TPCD1, TPCS1, TPENCODER_A1, TPENCODER_B1, TPLEDK1, TPMISO1, TPMOSI1, TPRESET1, TPSCK1 |
| 9 | 10nF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C20, C29 |
| 8 | 100nF | Capacitor_SMD:C_0805_2012Metric | C11, C12, C13, C14, C15, C17, C23, C24 |
| 7 | TS-1187A-B-A-B | footprints:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2 | ON_CH1, ON_CH2, ON-OFF1, SEL_CH1, SEL_CH2, SW_BOOT1, SW_RESET1 |
| 6 | 100R | Resistor_SMD:R_0402_1005Metric | R3, R5, R15, R16, R19, R20 |
| 4 | 47uF | Capacitor_SMD:C_1206_3216Metric | C25, C26, C27, C28 |
| 4 | MountingHole | MountingHole:MountingHole_3.7mm_Pad_Via | H1, H2, H3, H4 |
| 3 | 1uF | Resistor_SMD:R_0805_2012Metric | C1, C21, C22 |
| 3 | F.0603.00026/P2-0603B1TS2-06T-001 | footprints:LED0603-RD | LED1, LED3, LED4 |
| 2 | 10R | Resistor_SMD:R_0402_1005Metric | R1, R21 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C9, C10 |
| 2 | 330pF | Capacitor_SMD:C_0603_1608Metric | C18, C19 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J2, J4 |
| 1 | 120R | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C16 |
| 1 | 2N7002_C5224215 | footprints:SOT-23-3_L3.0-W1.6-P1.90-LS2.8-BR | Q1 |
| 1 | 3.3K | Resistor_SMD:R_0402_1005Metric | R24 |
| 1 | 4.7K | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 4.7k | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 4.7uF | Capacitor_SMD:C_1206_3216Metric | C30 |
| 1 | AMS1117-3.3 | footprints:SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | U3 |
| 1 | Conn_01x12_Pin | footprints:LCD-GMT020-02 | J3 |
| 1 | EC11J1525402 | footprints:SW-SMD_EC11J1525402 | SW2 |
| 1 | ESP32-S3-MINI-1-N4R2 | footprints:BULETM-SMD_ESP32-S3-MINI-1-N8 | U1 |
| 1 | ESP32-S3-WROOM-1(N16R2) | footprints:WIRELM-SMD_ESP32-S3-WROOM-1 | U2 |
| 1 | FUSB302MPX | footprints:MLP-14_L2.5-W2.5-P0.50-BL-EP | U4 |
| 1 | Header-Male-2.54_1x20 | footprints:HDR-TH_20P-P2.54-V-M-1 | J1 |
| 1 | KH-TYPE-C-16P | footprints:USB-C-SMD_KH-TYPE-C-16P | USB1 |
| 1 | KT-0603R | footprints:LED0603-RD | LED2 |
| 1 | NRS6028T220MMGJV | footprints:IND-SMD_L6.0-W6.0 | L2 |
| 1 | SM04B-GHS-TB(LF)(SN) | footprints:CONN-SMD_4P-P1.25_SM04B-GHS-TB-LF-SN | J5 |
| 1 | SS14 | footprints:SMA_L4.2-W2.6-LS5.3-RD | D1 |
| 1 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | TJA1044GT/3Z | footprints:SO-8_L4.9-W3.9-P1.27-LS5.9-BL | U8 |
| 1 | TPS5430DDAR | footprints:ESOP-8_L4.9-W3.9-P1.27-LS6.0-TL-EP | U6 |
| 1 | TXS0102DCU | Package_SO:VSSOP-8_2.3x2mm_P0.5mm | U7 |
Questions
How big is the PocketPSU elec main PCB?
It measures 90 × 90 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PocketPSU elec main use?
97 parts, built around the ESP32-S3-MINI-1-N4R2, TJA1044GT/3Z, FUSB302MPX and TPS5430DDAR. 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 PocketPSU elec main KiCad files?
From the jarrod89/pocketPSU repository on GitHub, at the commit this page was made from: the board is elec/pocketPSU_elec_main/pocketPSU_elec_main.kicad_pcb and its schematic elec/pocketPSU_elec_main/battery_input.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PocketPSU elec main design in my own project?
Its repository states no licence, so its author keeps all rights: ask jarrod89 before reusing the design.
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