Richtek

Richtek, a MediaTek group company, is a power-management specialist whose USB-C and charging portfolio covers both sides of the Type-C link. The profiles here show its range: the RT1716WSC is a compact TCPC controller for phones and notebooks implementing USB PD 3.0, the RT1718SGQW adds PD 3.1 with integrated ESD protection, USB 2.0 switching and VCONN in a single WQFN, and the RT7202E is a secondary-side AC-DC controller with an integrated MCU for PD 3.0 charger and adapter designs. When sourcing Richtek Type-C parts, confirm whether your design needs the TCPC port-controller role or the full PD controller function, since the two use different firmware and host interfaces. Match the package code to your assembly process — the WL-CSP options save board area but need reflow assembly. For adapter designs, pair the secondary-side controller with a matching primary-side PWM from the same family to shorten the validation cycle.

Sourcing notes for Richtek parts. Always quote the complete manufacturer ordering code — package, temperature grade, speed or accuracy grade, and packing (reel, tube or tray) all change availability and price, and suffixes are where most mismatches happen. Check the lifecycle status on the manufacturer site before committing to a multi-year build; parts flagged not-recommended or obsolete need a last-time-buy plan or a verified alternate lined up early. With every offer, request traceability documents — date code, lot code and original packing — and confirm the inspection steps your supplier applies to high-risk lots.