The SparkFun Power Delivery Board uses the STMicroelectronics STUSB4500 controller to negotiate USB Power Delivery (PD) contracts with compatible chargers and adapters. Instead of being limited to 5 V from a standard USB connection, this board can request higher voltages — typically 5–20 V and up to 100 W — from any USB-C PD power source.

The STUSB4500 handles all power negotiation autonomously using profiles stored in its built-in non-volatile memory. Configuration is done over I²C, and the Qwiic connectors make it easy to connect to a microcontroller for setup. Once configured, the board operates standalone — no microcontroller needed during normal use.

Key Features

• USB-C Power Delivery – Negotiate 5–20 V from PD-compatible adapters
• Up to 100 W – High-power output from a single USB-C connection
• STUSB4500 Controller – Autonomous PD negotiation with NVM-stored profiles
• Qwiic / I²C Interface – Solderless configuration via Qwiic connector
• Standalone Operation – No microcontroller required after initial configuration
• Through-Hole Breakout – SDA and SCL plated through-holes for non-Qwiic setups

Specifications

• Controller: STMicroelectronics STUSB4500
• Input: USB-C (Power Delivery)
• Negotiable Voltages: 5–20 V (source dependent)
• Max Power: Up to 100 W
• Configuration Interface: I²C (Qwiic or through-hole)
• Profile Storage: Non-volatile memory (NVM)

Ideal For

• Powering projects from USB-C PD chargers at higher voltages
• Replacing multiple wall adapters with a single USB-C power source
• Battery charging systems that benefit from PD negotiation
• Portable and benchtop power supplies

Package Contents

• 1× SparkFun Power Delivery Board – USB-C (Qwiic)

Resources

• Hookup Guide