DC-DC-Converter-Using-LMR51450

Arjit40·DC-DC-Converter-Using-LMR51450

DC-DC-Converter-Using-LMR51450 PCB layout, top view — open source board by Arjit40

About the DC-DC-Converter-Using-LMR51450 PCB

DC-DC-Converter-Using-LMR51450 is an open source PCB design by Arjit40, published on GitHub. It is a 2-layer board measuring 21.8 × 14.8 mm, with 13 components from 11 distinct parts.

Other key parts include the LMR51450FNDRRR. By type, the board carries 6 capacitors, 3 resistors, 2 connectors, 1 IC and 1 inductor.

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

From the project

A compact DC-DC buck converter design using TI’s LMR51450 regulator IC. Converts higher DC input to a stable 7.6V @ 4A output. Includes component selection, feedback network design, efficiency considerations, and KiCad schematic/PCB files.

Main components on the DC-DC-Converter-Using-LMR51450

DC-DC-Converter-Using-LMR51450 bill of materials (BOM)

13 components, 11 distinct parts.

Qty	Part	Footprint	Refs
1	LMR51450FNDRRR	LMR51450FNDRRR	U1
1	input	TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal	J1
1	output	TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal	J2
1	4.7uh / 6A	L_Changjiang_FNR3010S	L1
3	47uf/25v	C_0402_1005Metric	C1, C5, C6
1	22uf/25v	C_0402_1005Metric	C2
1	0.1uf /16v	C_0201_0603Metric	C3
1	33pf	C_0201_0603Metric	C4
1	66kohm	R_0201_0603Metric	R1
1	10kohm	R_0201_0603Metric	R2
1	1kohm	R_0201_0603Metric_Pad0.64x0.40mm_HandSolder	R3

DC-DC-Converter-Using-LMR51450 design files

The KiCad project lives in the Arjit40/DC-DC-Converter-Using-LMR51450 repository on GitHub; these links point at the commit this page was built from.

Layoutdc-dc converter.kicad_pcb
Schematicdc-dc converter.kicad_sch

DC-DC-Converter-Using-LMR51450: common questions

How big is the DC-DC-Converter-Using-LMR51450 PCB?

The DC-DC-Converter-Using-LMR51450 measures 21.8 × 14.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DC-DC-Converter-Using-LMR51450?

13 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the DC-DC-Converter-Using-LMR51450 design files?

From the Arjit40/DC-DC-Converter-Using-LMR51450 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the DC-DC-Converter-Using-LMR51450 design in my own project?

The repository has no license, so all rights stay with Arjit40. Use it as a reference, and ask the author before reusing the design.

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