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This project is intended to implement some simple multipurpose DC/DC buck and buck-boost converters from easy available components. This project also features Excel based component values calculator.
I've stared this project to create stable and high quality DC/DC module for my private projects, covering most common usecases:
- Step-down to most common fixed voltages 3.3V, 5V and 12V up to 5A
- Step-up/down from 1.8V-5.5V to 3.3V and 5V up to 3A
- Step-up/down from 2.5V-12V to 3.3V and 5V up to 1A
DCDC-12V5V5A is simple DC/DC step-down converter with fixed output 5V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 12V (7V-24V)
- Output: 5V
- Current: 5A (peak 10A)
- Switching: 500kHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti LM3150
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-12V3V5A is simple DC/DC step-down converter with fixed output 3.3V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 12V (5V-24V)
- Output: 3.3V
- Current: 5A (peak 10A)
- Switching: 600kHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti LM3150
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-18V12V5A is simple DC/DC step-down converter with fixed output 12V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 18V (14V-24V)
- Output: 12V
- Current: 5A (peak 10A)
- Switching: 500kHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti LM3150
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-18VXV5A is simple DC/DC step-down converter with selectable output 2-12V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 18V (5V-24V)
- Output: 2-12V
- Current: 5A (peak 10A)
- Switching: 500kHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti LM3150
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-5V5V3A is simple DC/DC step-up/down converter with selectable fixed output 3.3/5V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 1.8-5.5V
- Output: 3.3/5V (select)
- Current: 3A (peak 5A)
- Switching: 2.4MHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti TPS63020
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-5VXV3A is simple DC/DC step-up/down converter with selectable output 1.2-5V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 1.8-5.5V
- Output: 1.2-5V
- Current: 3A (peak 5A)
- Switching: 2.4MHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti TPS63020
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-12V5V1A is simple DC/DC step-up/down converter with selectable fixed output 3.3/5V. When used for more than 1A current it's recommended to glue a heat sink about 20x20mm in a middle of the bottom side of the board.
Preview:
Features:
- Input: 2.5-12V
- Output: 3.3/5V (select)
- Current: 1A (peak 2A)
- Switching: 2.4MHz
- Efficiency: up to 90%
- Board size: 40x24mm
- Based on: Ti TPS63060
CAM files are available. BoM and PnP files for JLCPCB are available.
DCDC-BASE-X2A is base board for 2 DC/DC modules with common input and two separate outputs. When used for more than 1A current it's recommended to glue a heat sinks about 20x20mm in a middle of the bottom side of DCDC boards before soldering them to the base board.
Preview:
Features:
- Fits two compatible DCDC modules
- Common/single input
- Two separate outputs
- Compatible with heat sinks up to 24x24mm
- Supports direct and/or hole through soldering of DCDC modules
CAM files are available.
DCDC-BASE-X2B is base board for 2 DC/DC modules with common input and two separate outputs. When used for more than 1A current it's recommended to glue a heat sinks about 20x20mm in a middle of the bottom side of DCDC boards before soldering them to the base board.
Preview:
Features:
- Fits two compatible DCDC modules
- Common/single input
- Two separate outputs
- Compatible with heat sinks up to 24x24mm
- Supports direct and/or hole through soldering of DCDC modules
CAM files are available.
DCDC-BOX is a enclosure for a single DCDC module, suitable for FDM and SLA 3D printing.
STL file is available.
DCDC-BOX-X2 is a enclosure for a X2A and X2B base boards, suitable for FDM and SLA 3D printing.
STL file is available.
- Interesting paper from Ti Under the hood of a noninverting buck-boost converter
- Product page of Ti LM3150
- Product page of Ti TPS63020
- Product page of Ti TPS63060
Your contributions as code, resources, or finances are welcome! Please contact me directly via email at [email protected] or through my GitHub profile.
If you'd like to make a financial contribution, you can donate via PayPal or Ko-Fi. Your support is greatly appreciated.
Thanks in advance!
