This product is currently under development!
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This product is a buck-boost switch mode power supply module using Analog Devices LTM8055. Supports the wide voltage input range of 5V to 36V. The output current and switching frequency are determined by the resistor value to be mounted.
This product was designed with a recommended 12V/6A output and a switching frequency of 600kHz. However, it was later changed to 18V/5A output and 800kHz switching frequency to suit SUSTAINA-OPTM applications.
- 12" x 7" (30.48 mm x 17.78 mm) PCB layout
- 1" (2.54mm) pitch through-holes for pin headers
- 1 x 7 pin headers - 1
- 3x VIN: Power In (5V to 36V)
- 1x NC: Non Connection
- 3x GND: Common Ground
- 1 x 7 pin headers - 2
- 3x VOUT: Power Out (Regulated 18V)
- 1x NC Non Connection
- 3x GND: Common Ground
- 1 x 7 pin headers - 1
- Complete Buck-Boost Switch Mode Power Supply
- VOUT Equal, Greater, Less Than VIN
- Wide Input Voltage Range: 5V to 36V
- 12V/3A Output from 6VIN
- 12V/6A Output from 12VIN
- 12V/8.5A Output from 24VIN
- Up to 97.5% Efficient
- Adjustable Input and Output Average Current Limits
This product is designed with the following software.
- \images
- PCB preview images and capture of design screen
- \libraries
- Libraries used in Autodesk Eagle design
- \documents
- Documentation for making and using this product
- \pcb_order
- Gerber data and documentation for ordering PCB
- schematic.pdf
- Circuit diagram of this product
- *.brd
- Board wiring design file by Autodesk Eagle
- *.sch
- Circuit diagram design file by Autodesk Eagle
- .gitignore
- A file that tells Git not to track a particular file
- LICENSE
- License to use this product
The following documents are available for this product.
- \pcb_order\README.md: Information for ordering the PCB
- \document\BOM.md: List of electronic components assembled on the PCB
The die temperature of the LTM8055/LTM8055-1 must be lower than the maximum rating of 125°C. Therefore, it is recommended that the following heat sinks be affixed to the LTM8055/LTM8055-1.
Details: Analog Devices LTM8055/LTM8055-1 Data Sheet Page#18
The output voltage of LTM8055/LTM8055-1 is determined by R4 and R5 on the board, and the switching frequency by R3. If the voltage is set other than the recommended configuration voltage, the voltage is determined by the following equation.
Output voltage [V] = 1.2 * (1 + R4 / R5)
Details: Analog Devices LTM8055/LTM8055-1 Data Sheet Page#10
This product was designed with reference to the following products.
If you have any questions, please contact the designer of this product, Masato Kubodera, by e-mail.
E-mail: masato.kubotera@sustaina-op.com
This product is open source. Please review the LICENSE for license information.
This product by Masato Kubotera is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.