Buck boost
About the Buck boost PCB
Buck boost is an open source PCB design by atopile, published on GitHub under the MIT license. It is a 6-layer board measuring 85.9 × 20.8 mm, with 69 components from 31 distinct parts.
Other key parts include the BQ25756RRVR, CC0603KRX7R9BB104, ARG02BTC4992, KT-0603R and KT-0603G. By type, the board carries 56 ICs, 4 transistors, 4 capacitors and 3 resistors.
It belongs with the power & battery designs in this gallery.
From the project
Hardware-In-the-Loop (HiL ⛰️) for high-quality validation 🧪 everywhere 🚀
Hardware-in-the-Loop, or HiL (sometimes HitL), is a way to continuously validate your hardware and firmware together. By connecting actual hardware to virtual test scenarios, HiL enables thorough testing of embedded systems, control units, and firmware under realistic conditions without the risks and costs of full physical testing.
HiL testing catches integration issues early, accelerates development cycles, and ensures robust system performance before deployment. Typically the domain of the most sophisticated automotive and aerospace companies, this HiL suite is now for all 🚀.
Main components on the Buck boost
Buck boost bill of materials (BOM)
69 components, 31 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ25756RRVR Texas Instruments | TQFN-36_L6.0-W5.0-P0.50-BL-EP-1-2fce41 | U1 |
| 2 | CC0603KRX7R9BB104 100nF ±10% 50V X7R YAGEO | C0603-bd72f6 | U2, U3 |
| 1 | ARG02BTC4992 49.9kΩ ±0% 62.5mW Viking Tech | R0402-56259e | U4 |
| 1 | KT-0603R Hubei KENTO Elec | LED0603-RD-c81ffb | U5 |
| 2 | KT-0603G Hubei KENTO Elec | LED0603-RD-c81ffb | U7, U55 |
| 1 | IHLP6767GZER100M01 Vishay Intertech | IND-SMD_L17.2-W17.2-132628 | U8 |
| 2 | CL21A475KAQNNNE 4.7µF ±10% 25V X5R Samsung Electro-Mechanics | C0805-3b2e55 | U9, U48 |
| 1 | RTT022491FTH 2.49kΩ ±1% 62.5mW RALEC | R0402-56259e | U10 |
| 8 | FS32X475K101EGG 4.7µF ±10% 100V X7R PSA(Prosperity Dielectrics) | C1210-c93926 | U11, U12, U13, U27, U28, U29, U51, U52 |
| 8 | FS32X106K101EGG 10µF ±10% 100V X7R PSA(Prosperity Dielectrics) | C1210-c93926 | U14, U15, U16, U17, U30, U31, U32, U33 |
| 2 | 1206B105K101NT 1µF ±10% 100V X7R FH(Guangdong Fenghua Advanced Tech) | C1206-f0a137 | U18, U34 |
| 3 | CL21B104KCFNNNE 100nF ±10% 100V X7R Samsung Electro-Mechanics | C0805-3b2e55 | U19, U35, U49 |
| 2 | 08051A101JAT2A 100pF ±5% 100V C0G AVX | C0805-3b2e55 | U20, U36 |
| 2 | TCC0402X5R474M160AT 470nF ±20% 16V X5R CCTC | C0402-b3ef17 | U21, U37 |
| 4 | CL05B104KO5NNNC 100nF ±10% 16V X7R Samsung Electro-Mechanics | C0402-b3ef17 | U22, U24, U38, U40 |
| 4 | 0402WGF100JTCE 10Ω ±1% 62.5mW UNI-ROYAL(Uniroyal Elec) | R0402-56259e | U23, U25, U39, U41 |
| 2 | RLM12FTCMR005 5mΩ ±1% 1W TA-I Tech | R1206-bdb864 | U26, U42 |
| 1 | 0402WGF1372TCE 13.7kΩ ±1% 62.5mW UNI-ROYAL(Uniroyal Elec) | R0402-56259e | U43 |
| 1 | RC0402FR-07249KL 249kΩ ±1% 62.5mW YAGEO | R0402-56259e | U44 |
| 1 | 0603WAF1004T5E 1MΩ ±1% 100mW UNI-ROYAL(Uniroyal Elec) | R0603-ebcab9 | U45 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0603WAF1333T5E 133kΩ ±1% 100mW UNI-ROYAL(Uniroyal Elec) | R0603-ebcab9 | U46 |
| 1 | RS-03K2552FT 25.5kΩ ±1% 100mW FH(Guangdong Fenghua Advanced Tech) | R0603-ebcab9 | U47 |
| 1 | HMK212BC7105KGHTE 1µF ±10% 100V X7S Taiyo Yuden | C0805-3b2e55 | U50 |
| 1 | 0402WGF0000TCE 0Ω 62.5mW UNI-ROYAL(Uniroyal Elec) | R0402-56259e | U54 |
| 1 | NCP18XH103F03RB Murata Electronics | R0603-ebcab9 | U57 |
| 1 | RC0402FR-0730K1L 30.1kΩ ±1% 62.5mW YAGEO | R0402-56259e | U58 |
| 1 | 0402WGF5231TCE 5.23kΩ ±1% 62.5mW UNI-ROYAL(Uniroyal Elec) | R0402-56259e | U59 |
| 4 | DMTH8003SPS-13 Diodes Incorporated | POWERVDFN-8_L5.8-W4.9-P1.27-LS6.2-BL-167b96 | Q1, Q2, Q3, Q4 |
| 2 | V1FM10-M3/H Vishay Intertech | DO-219AB_L2.8-W1.8-LS3.7-RD-212ba1 | DS1, DS2 |
| 4 | VKME1302A680MV 68µF ±20% Ymin | CAP-SMD_BD10.0-L10.3-W10.3-LS11.6-FD-b102ff | C1, C2, C3, C4 |
| 3 | RC0402FR-072K7L 2.7kΩ ±1% 62.5mW YAGEO | R0402-56259e | R1, R2, R3 |
Buck boost design files
The KiCad project lives in the atopile/hil repository on GitHub; these links point at the commit this page was built from.
Buck boost: common questions
How big is the Buck boost PCB?
The Buck boost measures 85.9 × 20.8 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Buck boost?
69 components, from 31 distinct parts. The full bill of materials is listed on this page.
Where can I download the Buck boost design files?
From the atopile/hil repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Buck boost design in my own project?
Yes, under the terms of its MIT license, which atopile chose for the repository.
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