4 layers80 × 60 mm
2 layers
3levelstepDown
AVSRAVITEJA/stepDownConverter- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 13
- Pads
- 124
- Tracks, vias
- 56, 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 May 2025
- Updated
- 28 May 2025
Overview
3levelstepDown is an open-source printed circuit board by AVSRAVITEJA, from the AVSRAVITEJA/stepDownConverter repository on GitHub. It is a 2-layer board with 35 parts on 13 nets, routed with 56 tracks and 5 vias.
It is built around the LM2596S-12, LM2596S-5.0 and XL4015E1. Its parts include 13 capacitors, 5 ICs, 5 diodes, 5 connectors and 5 inductors.
Main components
3
LM2596S-12
TO-263-5L-20℃~+70℃ 1 12V 170kHz 2mA 3A 4.5V~40V Buck Buck Built-in Fixed No TO-263-5L DC-DC Converters ROHSGRDC-DC ConvertersLM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersXL4015E1
TO-263-5-40℃~+125℃ 1 1.25V~32V 180kHz 5A 5mA 8V~36V Adjustable Buck Buck Built-in No TO-263-5 DC-DC Converters ROHSXLSEMIDC-DC Converters
README
README.mdstepDownConverter
In this project I have designed a DC-DC converter that steps down 48V to 28V, 12V and 5V. The pcb designed is used to distribute the input voltage to a camera, gimbal, flight controller and a radio. This pcb is a part of a high altitude surveillance drone with an endurance of 5hrs. The pcb uses LM2596 IC and XL4015 IC to step down the voltages. Most of the components used are SMD.
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1N5822 | Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D2, D3, D4, D5 |
| 5 | Conn_01x02_Pin | Connector:JWT_A3963_1x02_P3.96mm_Vertical | J1, J2, J3, J4, J5 |
| 4 | 56uF | Capacitor_SMD:CP_Elec_6.3x5.8 | C1, C3, C5, C7 |
| 3 | 330uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C2, C6, C8 |
| 3 | 68uH | Inductor_SMD:L_0201_0603Metric | L1, L3, L4 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric | C12, C13 |
| 2 | LM2596S-12 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1, U4 |
| 2 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U2, U3 |
| 1 | 100uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C9 |
| 1 | 120uH | Inductor_SMD:L_0201_0603Metric | L2 |
| 1 | 220uF | Capacitor_SMD:CP_Elec_6.3x5.8 | C4 |
| 1 | 2k | Resistor_SMD:R_0201_0603Metric | R2 |
| 1 | 43k | Resistor_SMD:R_0201_0603Metric | R1 |
| 1 | 470uF | Capacitor_SMD:CP_Elec_8x10.5 | C10 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 47uH | Inductor_SMD:L_0201_0603Metric | L5 |
| 1 | XL4015 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U5 |
Similar boards
- 2 layers130 × 75 mm
Aaron
alcaaron/esi_project
ENGINYERIA DE SISTEMES: PROJECTE DE CURS Fet per - Aaron Alcalá - Albert Bombí - Marcos García
64 parts - 2 layers100 × 100 mm
River sampler
Aquaflowies/Rotatory-Distribution-System
combinedtests: tests the combined action of the different components. The fullTest() function tests the entire operation of the system.
99 parts - 2 layers
- 4 layers166.4 × 60 mm
- 2 layers165 × 85 mm
TCC Placa 3KG
TCC-Sumo-Telemetria/Eletronica_Sumo_Telemetria
Projetos eletrônicos relacionados ao trabalho de conclusão de curso "SISTEMA DE TELEMETRIA PARA A AVALIAÇÃO DE DESEMPENHO DE UM ROBÔ DE MEGA SUMÔ AUTÔNOMO".
128 parts - 2 layers99.9 × 99.9 mm
- 2 layers98 × 99.5 mm
Questions
What parts does the 3levelstepDown use?
35 parts, built around the LM2596S-12, LM2596S-5.0 and XL4015E1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the 3levelstepDown KiCad files?
From the AVSRAVITEJA/stepDownConverter repository on GitHub, at the commit this page was made from: the board is 3levelstepDown.kicad_pcb and its schematic 3levelstepDown.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 3levelstepDown design in my own project?
Its repository states no licence, so its author keeps all rights: ask AVSRAVITEJA before reusing the design.