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4 layers130.4 × 75.4 mmPhq u, the printed circuit board in 3D

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

5

Parts

139
QtyValueFootprintReferences
134µ7Capacitor_SMD:C_1206_3216MetricC9, C12, C13, C28, C29, C30, C31, C32, C35, C36, C37, C38, C39
11100 nCapacitor_SMD:C_0402_1005MetricC4, C5, C8, C10, C11, C14, C16, C18, C21, C22, C25
113V3Diode_SMD:D_0402_1005MetricD2, D3, D5, D8, D9, D10, D11, D12, D13, D14, D15
54µ7Capacitor_SMD:C_0805_2012MetricC19, C20, C23, C24, C26
54µ7Capacitor_SMD:C_1210_3225MetricC1, C2, C3, C6, C7
4100kResistor_SMD:R_0402_1005MetricR23, R26, R29, R33
430 Aphq_SMD:Fuse_2410_20AF1, F2, F3, F4
445k3Resistor_SMD:R_0402_1005MetricR22, R28, R30, R32
45k1Resistor_SMD:R_0402_1005MetricR24, R25, R36, R37
485VCapacitor_SMD:C_1206_3216MetricRV2, RV3, RV4, RV5
4M3MountingHole:MountingHole_3.2mm_M3_Pad_ViaH1, H2, H3, H4
2100nCapacitor_SMD:C_0603_1608MetricC15, C33
2100nCapacitor_SMD:C_0402_1005MetricC17, C34
210 kResistor_SMD:R_0402_1005MetricR17, R31
210 mAFuse:Fuse_0603_1608MetricF5, F6
215 RResistor_SMD:R_0402_1005MetricR34, R35
2500 mAFuse:Fuse_0603_1608MetricF7, F8
25MResistor_SMD:R_1206_3216MetricR18, R19
275 Vphq_SMD:2036-NN-SMGD1, GD2
2ADS7142Package_DFN_QFN:Texas_R-PUQFN-N10U4, U7
2TMCS1108A1UPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU2, U3
2sealLOGOG***, G***
110MResistor_SMD:R_0603_1608MetricR14
110 mResistor_SMD:R_0805_2012MetricR27
115µphq_SMD:WE-LQS_4018L2
118…56 Vphq_Connector:Phoenix_1987737J1
11k13Resistor_SMD:R_0603_1608MetricR5
1232Resistor_SMD:R_0603_1608MetricR12
124 VCapacitor_SMD:C_1210_3225MetricRV6
124 VDiode_SMD:D_SMAD4
1261Resistor_SMD:R_0603_1608MetricR11
1287Resistor_SMD:R_0603_1608MetricR10
12M7Resistor_SMD:R_1206_3216MetricR20
12V5Diode_SMD:D_0402_1005MetricD7
12k1Resistor_SMD:R_0603_1608MetricR4
13.3…24 Vphq_Connector:Phoenix_1987737J4
1320µphq_SMD:CMX1211Z321B-10L1
1390 µCapacitor_THT:CP_Radial_D12.5mm_P5.00mmC27
13M9Resistor_SMD:R_1206_3216MetricR15
141R2Resistor_SMD:R_0603_1608MetricR13
1499kResistor_SMD:R_0805_2012MetricR16
1499 kResistor_SMD:R_0805_2012MetricR21
1536Resistor_SMD:R_0603_1608MetricR9
154 VDiode_SMD:D_SMBD1
1560RResistor_SMD:R_0402_1005MetricR7
1560 µCapacitor_THT:CP_Radial_D10.0mm_P5.00mmC40
156 VCapacitor_SMD:C_2220_5650MetricRV1
15k23Resistor_SMD:R_0603_1608MetricR3
1649Resistor_SMD:R_0603_1608MetricR8
168 RResistor_SMD:R_0402_1005MetricR38
1806Resistor_SMD:R_0603_1608MetricR6
1820kResistor_SMD:R_0603_1608MetricR1
18k66Resistor_SMD:R_0603_1608MetricR2
1ECMF02-2AMX6Package_DFN_QFN:ST_UQFN-6L_1.5x1.7mm_Pitch0.5mmU8
1ESP32-C3phq_Module:ESP32-C3-MINI-1UU6
1LEDConnector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_VerticalJ7
1MCU bypassConnector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_VerticalJ3
1MCU disableConnector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_VerticalJ5
1NX138AKRPackage_TO_SOT_SMD:SOT-23Q1
1Output voltageConnector_PinHeader_2.00mm:PinHeader_2x12_P2.00mm_VerticalJ2
1RPMH3.3-0.5Converter_DCDC:Converter_DCDC_RECOM_RPMx.x-x.0U5
1Schottky diodeDiode_SMD:D_SMFD6
1TC2030phq_Connector:TC2030J6
1TMP61Resistor_SMD:R_0402_1005MetricTH1
1URLLOGOG***
1USB-Cphq_Connector:USB4120J8
1i7A4W033A033Vphq_Module:i7A4W-0C1U1
1電圧のあざらしLOGOG***

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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