HardLabs

Automotive-Grade-Power-Supply-Design

OmurCeran·Automotive-Grade-Power-Supply-Design

Automotive-Grade-Power-Supply-Design PCB layout, top view — open source board by OmurCeran

About the Automotive-Grade-Power-Supply-Design PCB

Automotive-Grade-Power-Supply-Design is an open source PCB design by OmurCeran, published on GitHub. It is a 2-layer board measuring 32.3 × 12.8 mm, with 19 components from 16 distinct parts.

Other key parts include the TPS560430. By type, the board carries 6 capacitors, 4 resistors, 2 inductors, 1 IC and 1 diode.

It belongs with the power & battery designs in this gallery.

From the project

Automotive-Grade Power Supply Design (12V to 3.3V)

Designed a robust, AEC-Q compliant non-isolated synchronous buck converter optimized for harsh automotive environments. Strictly constrained to a 2-layer PCB layout in KiCad, this project prioritizes electromagnetic compatibility (EMI/EMC), thermal efficiency, and high-yield manufacturing reliability.

Automotive Firewall Implementation: Engineered a front-end protection circuit featuring load dump clamping (up to 36V via TVS diode), reverse polarity protection, and a pi-filter to suppress conducted emissions. Component & Topology Selection: Implemented the TI TPS560430XF-Q1 synchronous buck…

Main components on the Automotive-Grade-Power-Supply-Design

TPS560430

Automotive-Grade-Power-Supply-Design bill of materials (BOM)

19 components, 16 distinct parts.

QtyPartRefs
1
TPS560430
TPS560430XFDBVR
U1
1
TestPoint_THTPad_2.0x2.0mm_Drill1.0mm
VOUT(3.3V)
3V3
1
B340A-13-F
CR1
2
TestPoint_THTPad_D2.0mm_Drill1.0mm
GND
GND1, GND2
1
TestPoint_THTPad_2.0x2.0mm_Drill1.0mm
VIN(7.5Vto36V)
VIN1
1
SMAJ24CA
D1
1
BLM18KG601SH1D
FerriteBead_Small
FB1
1
784773068
4532_784773068
Wurth Elektronik
L1
1
GCM31CR71H225KA55L
2.2uF
C1
3
GCM188R71H104KA57D
100nF
C2, C3, C5
1
GCM32ER71A226KE12L
22uF
C4
1
CGA4J2X7R1H104K125AA
100nF
C6
1
CRCW0603604KFKEA
604k
R1
1
CRCW0603100KFKEA
100K
R2
1
CRCW060351K1FKEA
51K
R3
1
CRCW060322K1FKEA
22.1K
R4

Automotive-Grade-Power-Supply-Design design files

The KiCad project lives in the OmurCeran/Automotive-Grade-Power-Supply-Design repository on GitHub; these links point at the commit this page was built from.

Automotive-Grade-Power-Supply-Design: common questions

How big is the Automotive-Grade-Power-Supply-Design PCB?

The Automotive-Grade-Power-Supply-Design measures 32.3 × 12.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Automotive-Grade-Power-Supply-Design?

19 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Automotive-Grade-Power-Supply-Design design files?

From the OmurCeran/Automotive-Grade-Power-Supply-Design repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Automotive-Grade-Power-Supply-Design design in my own project?

The repository has no license, so all rights stay with OmurCeran. Use it as a reference, and ask the author before reusing the design.

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