SparkFun Qwiic 5V Boost – AP3012K

Bridge 5V I2C devices to your 3.3V Qwiic system with the SparkFun Qwiic 5V Boost, providing boosted power and selectable logic levels for seamless integration.

The SparkFun Qwiic 5V Boost simplifies interfacing 5V I2C devices with the 3.3V Qwiic ecosystem. It takes the 3.3V I2C signals and power from its Qwiic connectors and boosts them to 5V, available on the PTH pins. This is perfect for powering peripherals like RGB LEDs or DC fans commonly used in SPS30, SEN54, and SEN55 air quality and particulate matter sensors.

To make this board more compatible with our Qwiic ecosystem, it features 3V3/5V jumpers that allow you to independently set the logic levels of the I2C signals on the PTH pins. This enables connection to I2C devices that require either 3.3V or 5V for their power and communication needs. Furthermore, the TTL-based logic-level shifting mechanism can also be applied to other communication interfaces, such as serial buses, mirroring the capability of our SparkFun Single Supply Logic Level Converter.

Note

• Soldering is required to connect a 5V I2C device to this board.
• The boost circuit on this board is rated to source up to a 100mA at 5V output, with 90% efficiency. However, users should note that this limitation is not only dependent on the load being connected, but also the amount of current that is being sourced to the Qwiic connector system.

Features & Specifications

• AP3012 5V boost converter
• 5V TTL signal converters (x2)
• Qwiic connectors (x2)
• PTH pins
  • GND: The common ground or the 0V reference
  • 3V3: 3.3V power input to the AP3012
  • SDA/SCL: TTL signals for I2C bus
  • 5V: Boosted 5V power output from the AP3012
  • SHDN: Control signal for AP3012 boost converter
• Jumpers
  • I2C: Pull-up resistors on Qwiic connector
  • I2C HV: Pull-up resistors on PTH pins
  • 3V3/5V: Logic-Level of PTH pins
  • LED: Red PWR LED
• Dimensions: 1.00in. x 1.00in. (24.50mm x 24.50mm)
• Weight: 0.082oz (2.35g)

Resources

• Schematic
• KiCad Files
• Hookup Guide
• Board Dimensions
• STEP File
• Datasheet (AP3012K)
• Manufacturer’s Product Page
  • Technical Documentation
  • Diodes Technical Support Page
• GitHub Hardware Repository

Package Contents

• 1x SparkFun Qwiic 5V Boost – AP3012K