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Battery-Protected-Multi-Rail-Regulator

dineshkiran97·Battery-Protected-Multi-Rail-Regulator-PCB·hardware/VLO.kicad_pcb

Battery-Protected-Multi-Rail-Regulator PCB layout, top view — open source board by dineshkiran97
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About the Battery-Protected-Multi-Rail-Regulator PCB

Battery-Protected-Multi-Rail-Regulator is an open source PCB design by dineshkiran97, published on GitHub under the MIT license. It is a 2-layer board measuring 65 × 40 mm, with 12 components from 10 distinct parts.

Other key parts include the LDL1117S33R and LDL1117S50R. By type, the board carries 4 capacitors, 3 connectors, 2 ICs, 2 diodes and 1 resistor.

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

From the project

KiCad project for a battery-powered linear regulator board that generates two regulated rails (5V and 3.3V) from a single-cell battery input, with reverse-polarity protection and a power-on indicator.

KiCad project for a battery-powered linear regulator board that generates two regulated rails (5V and 3.3V) from a single-cell battery input, with reverse-polarity protection and a power-on indicator.

- Input: Single-cell battery via a 2-pin JST PH connector (J1) - Protection: Series Schottky diode (D1, 1N5820) blocks reverse-polarity connection - Outputs: Two independently regulated rails - 3.3V via U1 (LDL1117S33R) - 5.0V via U2 (LDL1117S50R) - Indicator: Power-on LED (D2, LTST-C171KGKT) with current-limiting resistor (R1, 255Ω) - Breakout: 4-pin header (J3) exposing BAT / 5V / 3.3V / GND…

Main components on the Battery-Protected-Multi-Rail-Regulator

LDL1117S33RLDL1117S50R

Battery-Protected-Multi-Rail-Regulator bill of materials (BOM)

12 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LDL1117S33R
U1
1
LDL1117S50R
LDL1117S50R_
U2
1
B2B-PH-K-S
J1
1
PC712A
J2
1
CONN_01X04
Conn_01x04_Pin
J3
1
1N5820
D1
1
LTST-C171KGKT
D2
2
1UF
C0805C105M8RACTU
C1, C2
2
4.7UF
C0805C475K4RACTU
C3, C4
1
255R
RC1206FR-07255RL
R1

Battery-Protected-Multi-Rail-Regulator design files

The KiCad project lives in the dineshkiran97/Battery-Protected-Multi-Rail-Regulator-PCB repository on GitHub; these links point at the commit this page was built from.

Battery-Protected-Multi-Rail-Regulator: common questions

How big is the Battery-Protected-Multi-Rail-Regulator PCB?

The Battery-Protected-Multi-Rail-Regulator measures 65 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Battery-Protected-Multi-Rail-Regulator?

12 components, from 10 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 Battery-Protected-Multi-Rail-Regulator design files?

From the dineshkiran97/Battery-Protected-Multi-Rail-Regulator-PCB 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 Battery-Protected-Multi-Rail-Regulator design in my own project?

Yes, under the terms of its MIT license, which dineshkiran97 chose for the repository.

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