2 layers100 × 60 mm
Device
jayis1/hacker-devices
Full-cycle hardware designs for security research devices — each device is a subfolder with its own README, schematics, PCB layout, and software stack
11 parts2
4 layers95 × 60 mm
I2c pps hw
condevtion/i2c-pps-hw2Schematics for Programmable DC-DC Power Supply with I2C Interface
- Size
- 95 × 60 mm
- Copper layers
- 4
- Thickness
- 1.7 mm
- Parts
- 121
- Nets
- 69
- Pads
- 401
- Tracks, vias
- 421, 478
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Feb 2026
- Updated
- 17 Apr 2026
Overview
I2c pps hw is an open-source printed circuit board by condevtion, from the condevtion/i2c-pps-hw repository on GitHub, published under the MIT licence. It is a 4-layer board of 95 × 60 mm with 121 parts on 69 nets, routed with 421 tracks and 478 vias.
It is built around the 74AHC1G14GV, MMBT3904 and SIS413DN, with the BZX384C2V4 and SMAJ6.5CA among its other parts. Its parts include 49 capacitors, 38 resistors, 12 diodes, 8 transistors and 3 ICs. It belongs with the power boards of this library.
Main components
5
74AHC1G14GV
SOT-23-5-40℃~+125℃ 1 1 1.2V~2.2V、1.75V~3.15V、2.15V~3.85V 16.3ns@3.3V,15pF 2V~5.5V 40uA 74AHC 8mA 8mA 900mV~1.9V、1.35V~2.75V、1.65V~3.35V SOT-23-5 Logic Gates ROHSTECH PUBLICLogic Gates
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
SIS413DN
PowerPAK1212-8-55℃~+150℃ 1 P-Channel 110nC@10V 13.2mΩ@4.5V 18A 2.5V 30V 382pF 4.28nF 427pF 52W P-Channel PowerPAK1212-8 MOSFETs ROHSVishay IntertechnologyMOSFETs
BZX384C2V4
SOD-3232.28V~2.6V 2.4V 200mW 50uA@1V SOD-323 Zener Diodes ROHSTECH PUBLICZener Diodes
SMAJ6.5CA
DO-214AC(SMA)ESD And Surge Protection (TVS/ESD)hongjiacheng
README
README.mdSchematics for Programmable DC-DC Power Supply with I2C Interface
About
The repository contains a schematic for the Programmable Power Supply.
Specifications
- Controller: Texas Instruments BQ25758S
- Input voltage: 5V (4-6V - hardware power good window)
- Input current: up to 5A (hardware limited)
- Output voltage: programmable by I2C in controller defined range (3.3 - 26V)
- Output current: up to 5A (hardware limited)
- Switching frequency: 250kHz
Schematics Structure
The device is complex enough for the schematics to be split into several pages, one for each functional block.
- Controller and Power Stage - consists of the BQ25758S controller, the power MOSFETs, and the inductor
- Input Filter and Sensor - a set of input capacitors and the input current sense resistor connected according to 4-point probes (Kelvin) method
- Output Filter and Sensor - the same for output circuit
- Master Switch - an input protection and an electronically controllable power switch
- Digital I/O and Indication - digital interface between controller and I2C host, contains as well a status LED, a power good LED, and an independent voltage regulator for the digital circuit
- Programming - a set of resistors to define controller's operating mode and HW limits for voltage and current For now the pages contain mainly just network and hierarchical labels.
Major Networks and Busses
+5V_Prot- protected positive input voltage. The master switch page contains an input connector and protection circuit (fuse, TVS diode, polarity protection) after which the network starts. It is used as well to power the digital I/O and indication block+5V_Run- positive input voltage after the master switch itself (goes to the input filter and powers the controller). It is live whileENpin highEN- master switch control signal (should be high to turn the switch on and low to turn it OFF)+5V_Filtered- output of the input filterVOUT- the output voltages bus (contains power stage output and whole device output networks, goes to the output filter)I2C- I2C bus itself (connected toSCLandSDApins)GPIO- groups digital I/O lines: interrupt, power good, status, and chip enablePROG- groups the rest of analog input lines which should be connected to the programming block to set operating mode and limits for the controller
Parts
121| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C6, C7, C11, C12, C14, C15, C22, C25, C37, C48, C49 |
| 6 | 0 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11, R12, R13, R15, R16 |
| 6 | 10uF | Capacitor_SMD:C_1210_3225Metric | C27, C28, C29, C39, C40, C41 |
| 6 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R30, R31, R32, R33, R35, R38 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R26, R27, R28, R29 |
| 5 | 1uF | Capacitor_SMD:C_0805_2012Metric | C5, C23, C24, C38, C44 |
| 5 | 4.7uF | Capacitor_SMD:C_1210_3225Metric | C30, C31, C35, C42, C43 |
| 4 | 10 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17, R18, R19, R20 |
| 4 | Green | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D6, D7, D8, D9 |
| 4 | MountingHole_2.7mm_M2.5_Guarded | i2c-pps-hw:MountingHole_2.7mm_M2.5_Guarded | MH1, MH2, MH3, MH4 |
| 4 | SiR880BDP | i2c-pps-hw:PowerPAK_SO-8_Single_ThermalVias | Q1, Q2, Q3, Q4 |
| 3 | 100pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C26, C36, C45 |
| 3 | 47uF | Capacitor_SMD:CP_Elec_6.3x5.7 | C32, C33, C34 |
| 3 | 56uF | Capacitor_SMD:C_Elec_10x10.2 | C18, C19, C20 |
| 2 | 0.47uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C13 |
| 2 | 1.8k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R9 |
| 2 | 20k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25, R37 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C8, C9 |
| 2 | 5m | Resistor_SMD:R_2512_6332Metric | R23, R24 |
| 2 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q6, Q7 |
| 2 | SIS413DN | i2c-pps-hw:Vishay_PowerPAK_1212-8_Single_ThermalVias | Q5, Q8 |
| 2 | V1FM10-M3/H | Diode_SMD:D_SMF | D1, D2 |
| 2 | ~ | i2c-pps-hw:SolderJumper-2_P0.65mm_Bridged_RoundedPad0.5x0.75mm | JP1, JP2 |
| 2 | ~ | Capacitor_SMD:C_0805_2012Metric | C16, C17 |
| 2 | ~ | Resistor_SMD:R_1210_3225Metric | R21, R22 |
| 1 | +5V | i2c-pps-hw:TE_1-1123724-2 | J1 |
| 1 | 0 | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 10 | Resistor_SMD:R_1206_3216Metric | R34 |
| 1 | 105k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 10uH | i2c-pps-hw:L_Bourns_SRP1038A_10.0x11.0mm | L1 |
| 1 | 133k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 15A, 12V | i2c-pps-hw:TO-277A_ThermalVias | D4 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 1nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C21 |
| 1 | 2.2uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C46 |
| 1 | 2.2uF | Capacitor_SMD:C_1210_3225Metric | C47 |
| 1 | 2.7k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R36 |
| 1 | 274k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 3.92k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 3k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 5A | Fuse:Fuse_2920_7451Metric | F1 |
| 1 | 74AHC1G14 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U3 |
| 1 | AP2210-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | BQ25758S | i2c-pps-hw:Texas_RRV0036A_VQFN-36-1EP_4.8x5.8mm_P0.5mm_EP3.6x4.6mm_ThermalVias | U1 |
| 1 | BZX384C2V4 | Diode_SMD:D_SOD-323 | D12 |
| 1 | Blue | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D11 |
| 1 | Digital I/O | Connector_PinSocket_2.54mm:PinSocket_2x05_P2.54mm_Vertical | J3 |
| 1 | Red | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D5 |
| 1 | SMAJ6.5CA | Diode_SMD:D_SMA | D3 |
| 1 | Vout | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J2 |
| 1 | Yellow | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D10 |
Questions
How big is the I2c pps hw PCB?
It measures 95 × 60 mm and has 4 copper layers, 1.7 mm thick.
What parts does the I2c pps hw use?
121 parts, built around the 74AHC1G14GV, MMBT3904, SIS413DN and BZX384C2V4. 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 I2c pps hw KiCad files?
From the condevtion/i2c-pps-hw repository on GitHub, at the commit this page was made from: the board is i2c-pps-hw.kicad_pcb and its schematic i2c-pps-hw-cps.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the I2c pps hw design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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