Key features:
- Support for fixed PDO, PPS and AVS profiles
- Output voltage range: 3.3V to 28V
- Fine-grained voltage adjustment via PPS negotiation (100mV/Step)
- Output current up to 5A (charger and cable dependent)
- Programmable current limit (250mA/Step)
- User-switchable output
For a detailed look at the schematics, PCB design and firmware, visit the GitHub repository.
Sponsor time
Huge thank you to PCBWay for providing me PCBs and SMD stencil for free.
PCBWay offers high-quality PCBs at affordable prices. The boards are ready to solder straight out of the box, with no leftover tabs that need to be sanded down. Ordering is super easy: just upload the Gerber files and select the desired parameters.
What I like most is their customer support. They are quick to review orders and don’t just point out issues - they provide detailed explanations on how to address them. Whether it is about a missing Gerber file or out of capabilies issue. At the end, the outcome is always positive.