Description
The Adafruit 12V Bias Voltage Boost Converter utilizes the TI TPS61040 chip to generate a stable 12V DC output from an input voltage as low as 2V up to 6V. This compact booster is ideal for applications requiring a small amount of 12V current, such as powering OLED displays, LED string backlights, or reprogramming FLASH or EEPROM memories.
Note that this boost converter is not meant for high-power applications like solenoids, motors, or long LED strips, as it provides a maximum output current of approximately 40mA.
The breakout board comes fully assembled with the TPS61040 chip, passive components, and a small length of header pins. Simply supply 2 to 6V DC to the IN and G round pins, and you will get 12V on the 12V output pin. The Enable (En) pin can be pulled low to disable the output.
Features:
- Generates 12V output from 2-6V input using TPS61040 chip
- Output current up to ~40mA suitable for biasing OLEDs and small loads
- Compact dimensions: 15.2mm x 10.0mm x 2.9mm (0.6″ x 0.4″ x 0.1″)
- Low quiescent current and shutdown current
- Enable pin for easy power control
Technical Specifications:
- Input Voltage Range: 1.8V to 6V
- Fixed Output Voltage: 12V
- Internal Switch Current: 400mA (max)
- Output Current: approx. 40mA max
- Switching Frequency: up to 1 MHz
- No-Load Quiescent Current: 28 µA typical
- Shutdown Current: 1 µA typical
- Soft Start: internal
- Weight: 0.1g
TPS61040 Datasheet PDF
PCB fabrication files are available on GitHub.
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