Adafruit TPA2012 Stereo 2.1W Class D Audio Amplifier Breakout
SKU: TH1988
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SKU: TH2002
The Adafruit 12V Bias Voltage Boost Converter Breakout uses the efficient Texas Instruments TPS61040 to generate a stable 12V output from as little as 3V input. It’s commonly used to provide the 12V bias voltage required by OLED displays and other low-current, high-voltage circuits.
The Adafruit 12V Bias Voltage Boost Converter Breakout uses the efficient Texas Instruments TPS61040 to generate a stable 12V output from as little as 3V input. It’s commonly used to provide the 12V bias voltage required by OLED displays and other low-current, high-voltage circuits.
Designed for light loads, the board delivers up to ~40 mA at 12V, making it ideal for OLED biasing, LED backlights, and FLASH/EEPROM programming—without the need for a separate 12V supply. Just feed 2–6V DC into the input pins to get a regulated 12V output, and use the Enable pin to turn the converter on or off as needed.
Technical details Adafruit TPS61040 12V Bias Voltage Boost Converter Breakout.
| Specification | Details |
|---|---|
| Boost Converter IC | TI TPS61040 |
| Input Voltage | 2V to 6V DC (chip supports 1.8V to 6V) |
| Output Voltage | Fixed 12V DC |
| Max Output Current | Up to ~40mA (low-power use cases) |
| Internal Switch Current | 400mA (not the same as output current) |
| Switching Frequency | Up to 1 MHz |
| No-Load Quiescent Current | 28 µA (typical) |
| Shutdown Current | 1 µA (typical) |
| Soft Start | Internal soft-start |
| Enable Pin | Active-low disable (pull EN low to disable output) |
| Use Cases | OLED bias voltage LED string backlight FLASH/EEPROM programming |
| Not Recommended For | Motors, solenoids, long analog LED strips, high-power loads |
| Included | Fully assembled breakout board + small header strip |
| Pin | Description |
|---|---|
| G | Ground (common ground for input and output) |
| 12V | 12V boosted output (up to ~40 mA) |
| IN | Input voltage supply (2V to 6V DC) |
| EN | Enable pin (pull low to disable output) |
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