April 22, 2025
Understanding PPS Fast Charging: What It Is and How It Works
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Fast charging has come a long way—and one of the most advanced technologies in this space is Programmable Power Supply (PPS). If you’ve ever wondered why your device charges faster with some cables and adapters than others, PPS might be the answer.
Let’s break down what PPS fast charging is, how it compares to other standards like Power Delivery (PD) and Qualcomm® Quick Charge, and which chips are typically used in devices that support it.
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PPS (Programmable Power Supply) is an extension of the USB Power Delivery 3.0 (USB PD 3.0) standard, introduced by the USB Implementers Forum (USB-IF) in 2017.
What makes PPS unique? Unlike traditional fast charging that delivers a fixed voltage, PPS dynamically adjusts voltage and current every 10 seconds, based on what your device actually needs at any given moment. This real-time communication between your device and charger leads to:
PPS support is becoming more widespread in premium devices. Here are a few well-known examples:
Here are some widely used ICs (Integrated Circuits) that power these fast-charging protocols:
PPS fast charging isn’t just about speed—it’s about smarter, more efficient charging. By dynamically negotiating voltage and current, PPS reduces heat, protects battery health, and delivers a better experience for power users.
If you're designing or sourcing power solutions for modern electronics, make sure your charger and cable support PPS. And if you're a developer, integrating chips like the STUSB4761 or TPS25750 can give your products that next-gen charging edge.
Want help selecting a chip for your power design or building your own PPS-compatible device? Let’s build it together.
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