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DC-DC-ldo analog supply

Goosis·DC-DC-ldo-analog-supply·kicad/dual_stage_regulator.kicad_pcb

DC-DC-ldo analog supply PCB layout, top view — open source board by Goosis

About the DC-DC-ldo analog supply PCB

DC-DC-ldo analog supply is an open source PCB design by Goosis, published on GitHub. It is a 4-layer board measuring 54.4 × 17.9 mm, with 29 components from 21 distinct parts.

Other key parts include the TPS56837RPAR and TPS7A53B. By type, the board carries 3 connectors, 2 ICs, 2 resistors and 1 inductor.

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

From the project

Two-stage power supply project: 6–10 V input stepped down to 4 V @ 3.5 A via buck converter, then regulated to 2.6 V @ 1.7 A with a low-noise LDO for analog loads. Includes full design flow, feedback calculations, and PCB layout.

Input: 6–10V DC Output 1: 4V @ 3.5A (Buck Converter) Output 2: 2.6V @ 1.7A (LDO Regulator) Design Tool: KiCad ICs: TPS56837H (Buck), TPS7A53B (LDO)

This is a compact, efficient two-stage power supply designed for low-noise and high-current applications. It converts a 6–10V DC input into:

- 4V @ 3.5A via DC-DC Buck (TPS56837H) - 2.6V @ 1.7A via LDO (TPS7A53B)

The design was based on official Texas Instruments datasheets, simulation tools, and PCB manufacturer guidelines. Great care was taken in layout, thermal management, and ground isolation.

DC-DC-ldo analog supply, from the project README
From the project README

Main components on the DC-DC-ldo analog supply

TPS56837RPARTPS7A53B

DC-DC-ldo analog supply bill of materials (BOM)

29 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPS56837RPAR
IC1
1
TPS7A53B
IC2
3
B2P-VH(LF)(SN)
B2P-VH_LF__SN_
J1, J2, J3
1
100NF
100nF
KYOCERA AVX
Cboot1
1
150PF
150pF
KEMET
Cff1
1
10NF
10nF
TAIYO YUDEN
Cff2
2
10UF
10uF
MuRata
Cin1, Cin2
2
47UF
47uF
TAIYO YUDEN
Cin3, Cout5
1
100NF
100nF
MuRata
Cinx1
1
10nF
Cnr/ss1
2
47UF
47uF
TDK
Cout1, Cout2
2
10UF
10uF
TAIYO YUDEN
Cout3, Cout4
1
22NF
22nF
MuRata
Css1
1
150k
Ren1
3
100k
Ren2, Rpg1, Rpg2
1
5.23k
Rfbb1
1
30k
Rfbt1
1
30.1k
Rmode1
1
SPM6530T-4R7M
4.7uH
L1
1
12.1k
R1
Show 1 more
QtyPartRefs
1
2.87k
R2

DC-DC-ldo analog supply design files

The KiCad project lives in the Goosis/DC-DC-ldo-analog-supply repository on GitHub; these links point at the commit this page was built from.

DC-DC-ldo analog supply: common questions

How big is the DC-DC-ldo analog supply PCB?

The DC-DC-ldo analog supply measures 54.4 × 17.9 mm, has 4 copper layers and is 1.74 mm thick.

How many components are on the DC-DC-ldo analog supply?

29 components, from 21 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the DC-DC-ldo analog supply design files?

From the Goosis/DC-DC-ldo-analog-supply repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the DC-DC-ldo analog supply design in my own project?

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

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