

Phq u
Step‐down power converter
- Size
- 130.4 × 75.4 mm
- Copper layers
- 4
- Thickness
- 1.55 mm
- Parts
- 139
- Nets
- 88
- Pads
- 470
- Tracks, vias
- 205, 530
- Pours
- 19
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 3 Jan 2022
- Updated
- 26 Feb 2022
Overview
Phq u is an open-source printed circuit board by illdefined, from the illdefined/phq-u repository on GitHub. It is a 4-layer board of 130.4 × 75.4 mm with 139 parts on 88 nets, routed with 205 tracks and 530 vias.
It is built around the ESP32-C3, RPMH3.3-0.5 and TMCS1108A1UQD, with the ECMF02-2AMX6 and NX138AKR among its other parts. Its parts include 40 capacitors, 38 resistors, 15 diodes, 8 ICs and 8 connectors. It belongs with the power boards and the ESP32 and RISC-V boards of this library.
Main components
5ESP32-C3
QFN-32-EP(5x5)12bit 160MHz 22 3V~3.6V Others QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSEspressif SystemsMicrocontrollers (MCU/MPU/SOC)RPMH3.3-0.5
BLGA-25-40℃~+105℃ 1 12.19mm 12.19mm 16uA 20mVp-p 3.3V 3.75mm 300kHz 4.3V~65V 500mA 72% 80000uF Short Circuit Protection、Over Current Protection、Automatic fault recovery、Programmable output voltage、Power-on timing control、Programmable soft start ±4.8% BLGA-25 DC-DC Power Modules ROHSRECOM PowerDC-DC Power ModulesTMCS1108A1UQD
SOIC-8-40℃~+125℃ -9A~86A 1.8mΩ 3V~5.5V 5.5mA 50mV/A 6.5us 80kHz Overcurrent Protection、Bidirectional detection Support SOIC-8 Current Sensors ROHSTexas InstrumentsCurrent SensorsECMF02-2AMX6
UFQFN-6(1.5x1.7)-40℃~+85℃ 2 2.5Ω 200mA UFQFN-6(1.5x1.7) Common Mode Filters ROHSSTMicroelectronicsCommon Mode FiltersNX138AKR
SOT-23-55℃~+150℃ 1 N-channel 1.4nC@10V 1.5V 1.5pF 190mA 20pF 265mW 4.5Ω@10V 60V SOT-23 MOSFETs ROHSNexperiaMOSFETs
Parts
139| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 4µ7 | Capacitor_SMD:C_1206_3216Metric | C9, C12, C13, C28, C29, C30, C31, C32, C35, C36, C37, C38, C39 |
| 11 | 100 n | Capacitor_SMD:C_0402_1005Metric | C4, C5, C8, C10, C11, C14, C16, C18, C21, C22, C25 |
| 11 | 3V3 | Diode_SMD:D_0402_1005Metric | D2, D3, D5, D8, D9, D10, D11, D12, D13, D14, D15 |
| 5 | 4µ7 | Capacitor_SMD:C_0805_2012Metric | C19, C20, C23, C24, C26 |
| 5 | 4µ7 | Capacitor_SMD:C_1210_3225Metric | C1, C2, C3, C6, C7 |
| 4 | 100k | Resistor_SMD:R_0402_1005Metric | R23, R26, R29, R33 |
| 4 | 30 A | phq_SMD:Fuse_2410_20A | F1, F2, F3, F4 |
| 4 | 45k3 | Resistor_SMD:R_0402_1005Metric | R22, R28, R30, R32 |
| 4 | 5k1 | Resistor_SMD:R_0402_1005Metric | R24, R25, R36, R37 |
| 4 | 85V | Capacitor_SMD:C_1206_3216Metric | RV2, RV3, RV4, RV5 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C15, C33 |
| 2 | 100n | Capacitor_SMD:C_0402_1005Metric | C17, C34 |
| 2 | 10 k | Resistor_SMD:R_0402_1005Metric | R17, R31 |
| 2 | 10 mA | Fuse:Fuse_0603_1608Metric | F5, F6 |
| 2 | 15 R | Resistor_SMD:R_0402_1005Metric | R34, R35 |
| 2 | 500 mA | Fuse:Fuse_0603_1608Metric | F7, F8 |
| 2 | 5M | Resistor_SMD:R_1206_3216Metric | R18, R19 |
| 2 | 75 V | phq_SMD:2036-NN-SM | GD1, GD2 |
| 2 | ADS7142 | Package_DFN_QFN:Texas_R-PUQFN-N10 | U4, U7 |
| 2 | TMCS1108A1U | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U3 |
| 2 | seal | LOGO | G***, G*** |
| 1 | 10M | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 10 m | Resistor_SMD:R_0805_2012Metric | R27 |
| 1 | 15µ | phq_SMD:WE-LQS_4018 | L2 |
| 1 | 18…56 V | phq_Connector:Phoenix_1987737 | J1 |
| 1 | 1k13 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 232 | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 24 V | Capacitor_SMD:C_1210_3225Metric | RV6 |
| 1 | 24 V | Diode_SMD:D_SMA | D4 |
| 1 | 261 | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 287 | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 2M7 | Resistor_SMD:R_1206_3216Metric | R20 |
| 1 | 2V5 | Diode_SMD:D_0402_1005Metric | D7 |
| 1 | 2k1 | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 3.3…24 V | phq_Connector:Phoenix_1987737 | J4 |
| 1 | 320µ | phq_SMD:CMX1211Z321B-10 | L1 |
| 1 | 390 µ | Capacitor_THT:CP_Radial_D12.5mm_P5.00mm | C27 |
| 1 | 3M9 | Resistor_SMD:R_1206_3216Metric | R15 |
| 1 | 41R2 | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 499k | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | 499 k | Resistor_SMD:R_0805_2012Metric | R21 |
| 1 | 536 | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 54 V | Diode_SMD:D_SMB | D1 |
| 1 | 560R | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 560 µ | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C40 |
| 1 | 56 V | Capacitor_SMD:C_2220_5650Metric | RV1 |
| 1 | 5k23 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 649 | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 68 R | Resistor_SMD:R_0402_1005Metric | R38 |
| 1 | 806 | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 820k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 8k66 | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | ECMF02-2AMX6 | Package_DFN_QFN:ST_UQFN-6L_1.5x1.7mm_Pitch0.5mm | U8 |
| 1 | ESP32-C3 | phq_Module:ESP32-C3-MINI-1U | U6 |
| 1 | LED | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J7 |
| 1 | MCU bypass | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J3 |
| 1 | MCU disable | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J5 |
| 1 | NX138AKR | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Output voltage | Connector_PinHeader_2.00mm:PinHeader_2x12_P2.00mm_Vertical | J2 |
| 1 | RPMH3.3-0.5 | Converter_DCDC:Converter_DCDC_RECOM_RPMx.x-x.0 | U5 |
| 1 | Schottky diode | Diode_SMD:D_SMF | D6 |
| 1 | TC2030 | phq_Connector:TC2030 | J6 |
| 1 | TMP61 | Resistor_SMD:R_0402_1005Metric | TH1 |
| 1 | URL | LOGO | G*** |
| 1 | USB-C | phq_Connector:USB4120 | J8 |
| 1 | i7A4W033A033V | phq_Module:i7A4W-0C1 | U1 |
| 1 | 電圧のあざらし | LOGO | G*** |
The 137 most common of 139 parts.
Questions
How big is the Phq u PCB?
It measures 130.4 × 75.4 mm and has 4 copper layers, 1.55 mm thick.
What parts does the Phq u use?
139 parts, built around the ESP32-C3, RPMH3.3-0.5, TMCS1108A1UQD and ECMF02-2AMX6. 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 Phq u KiCad files?
From the illdefined/phq-u repository on GitHub, at the commit this page was made from: the board is phq-u.kicad_pcb and its schematic control.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Phq u design in my own project?
Its repository states no licence, so its author keeps all rights: ask illdefined before reusing the design.
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