5V 10A-Buck converter

AMAR124595·5V_10A-Buck-converter·5V_10A_Buck/5V_10A_Buck.kicad_pcb

5V 10A-Buck converter PCB layout, top view — open source board by AMAR124595

About the 5V 10A-Buck converter PCB

5V 10A-Buck converter is an open source PCB design by AMAR124595, published on GitHub. It is a 4-layer board measuring 35 × 40 mm, with 27 components from 16 distinct parts.

Other key parts include the TPS51397ARJER. By type, the board carries 13 capacitors, 10 resistors, 2 connectors, 1 IC and 1 inductor.

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

From the project

A 4 layer PCB of the 5V_10A buck convertor using TPS51397ARJER IC

A compact, high-efficiency 4-layer PCB design for a 5V, 10A synchronous step-down (buck) converter based on the Texas Instruments TPS51397ARJER IC.

This project implements a high-current, fixed 5V output power supply suitable for embedded systems, SBCs, and industrial load applications. The design leverages the TPS51397A's integrated MOSFETs, D-CAP3™ adaptive on-time control, and ULQ™ (Ultra Low Quiescent) operation for high efficiency across the full load range.

Main components on the 5V 10A-Buck converter

5V 10A-Buck converter bill of materials (BOM)

27 components, 16 distinct parts.

Qty	Part	Footprint	Refs
1	TPS51397ARJER	RJE0020B-MFG	IC1
1	OUTPUT	TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal	J1
1	INPUT	TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal	J2
1	744311150 1.5 µH	WE-HCI_7030%2f7040%2f705023	L1
3	22uF	C_1210_3225Metric_Pad1.33x2.70mm_HandSolder	C1, C2, C3
3	100nF	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C4, C5, C9
1	1uF	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C6
2	100pF	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C7, C8
4	47uF	C_1210_3225Metric_Pad1.33x2.70mm_HandSolder	C10, C11, C12, C13
2	100K	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R4
1	33K	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R2
2	0	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3, R7
1	330K	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R5
2	15K	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R6, R10
1	51R1	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R8
1	110K	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R9

5V 10A-Buck converter design files

The KiCad project lives in the AMAR124595/5V_10A-Buck-converter repository on GitHub; these links point at the commit this page was built from.

Layout5V_10A_Buck/5V_10A_Buck.kicad_pcb
Schematic5V_10A_Buck/5V_10A_Buck.kicad_sch

5V 10A-Buck converter: common questions

How big is the 5V 10A-Buck converter PCB?

The 5V 10A-Buck converter measures 35 × 40 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the 5V 10A-Buck converter?

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

Where can I download the 5V 10A-Buck converter design files?

From the AMAR124595/5V_10A-Buck-converter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 5V 10A-Buck converter design in my own project?

The repository has no license, so all rights stay with AMAR124595. Use it as a reference, and ask the author before reusing the design.

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