Boardoza TPS63020 Buck Boost Converter Evaluation Board
High-efficiency buck-boost converter evaluation board using TI TPS63020, supporting 1.8V–5.5V input and multiple selectable output voltages up to 5V.
Boardoza TPS63020 Buck-Boost Converter Evaluation Board
The Boardoza TPS63020 Buck-Boost Converter Evaluation Board is designed around the Texas Instruments TPS63020 high-efficiency buck-boost regulator IC. It provides a stable and flexible power solution for systems powered by a wide range of sources such as single-cell Li-ion batteries, multi-cell NiMH/NiCd batteries, supercapacitors, or regulated rails.
This evaluation board supports automatic transition between step-down and boost modes, ensuring continuous operation even when the input voltage is above or below the desired output voltage. It operates at a fixed 2.4 MHz switching frequency, enabling compact design and high efficiency across the full load range. The board allows output voltage selection via jumper configuration and delivers up to 3 A peak current with up to 2 A continuous output current at 3.3V.
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| Front Side | Back Side |
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Key Features
- Wide Input Range: Accepts 1.8V to 5.5V input voltage.
- Adjustable Output Voltage: Selectable output levels — 1.2V, 1.8V, 2.8V, 3.3V, or 5V via jumpers.
- Automatic Buck-Boost Operation: Seamlessly transitions between step-down and step-up modes.
- High Efficiency: Synchronous rectification and power save mode for light-load optimization.
- Compact and Reliable: Ideal for battery-powered, portable, and embedded systems.
- Power Save Mode: Can be disabled for constant-frequency operation.
Technical Specifications
Model: TPS63020
Manufacturer: Texas Instruments
Input Voltage Range: 1.8V – 5.5V
Output Voltage Range: 1.2V, 1.8V, 2.8V, 3.3V, 5V (Selectable)
Output Current (VIN > 2.5V, VOUT = 3.3V): 2 A
Switch Current Limit: 4 A (typ.)
Switching Frequency: 2.4 MHz
Functions: Buck-Boost DC/DC Converter
Power Input Type: Molex 2-pin 2.50mm header
Operating Temperature: -40°C ~ +150°C
Board Dimensions: 40mm x 60mm
Board Pinout
( J1 ) Power Input Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VIN | Voltage Input Pin (1.8V - 5.5V) |
| 2 | GND | Ground |
( J4 ) Power Output Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VOUT | Adjustable Buck-Boost converter output (1.2V - 5V selectable) |
| 2 | GND | Ground |
( J2 ) Enable Control
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | LOW | GND |
| 2 | EN | Regulator enable pin. To disable, connect EN to LOW. |
| 3 | HIGH | VIN voltage level |
( J3 ) PS/SYNC Control
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | LOW | GND |
| 2 | PS/SYNC | Power Save or Synchronization pin. Set LOW to enable power save mode for light load efficiency; set HIGH for fixed-frequency operation. |
| 3 | HIGH | VIN voltage level |
Voltage Selection Jumpers
| Jumper | Description |
|---|---|
| JP1 | 5V selection – Adjusted feedback resistor for 5V output |
| JP2 | 3.3V selection – Adjusted feedback resistor for 3.3V output |
| JP3 | 2.8V selection – Adjusted feedback resistor for 2.8V output |
| JP4 | 1.8V selection – Adjusted feedback resistor for 1.8V output |
| JP5 | 1.2V selection – Adjusted feedback resistor for 1.2V output |
Board Dimensions
Step Files
Datasheet
Texas Instruments TPS63020 Datasheet.pdf
Version History
- V1.0.0 - Initial Release
Support
If you have any questions or need support, please contact support@boardoza.com
License
Shield: 
This work is licensed under a
Creative Commons Attribution-ShareAlike 4.0 International License.
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