CYPD3120-40 in EZ-PD USB-C Controllers Family
The CYPD3120-40 belongs to the EZ-PD CCG3 family from Infineon (formerly Cypress), representing a highly integrated USB Type-C and Power Delivery (PD) controller solution. It is designed to simplify the design of power adapters, mobile chargers, and power banks by integrating the VBUS provider MOSFET gate driver, regulator, and termination resistors. Built on a programmable ARM Cortex-M0 architecture, it provides the flexibility to support the latest USB Power Delivery specifications and custom charging protocols in a compact footprint.
Variants in This Sub-Family
Variants within the CYPD3120-40 sub-family primarily differ based on their thermal ratings, packaging options, and pre-programmed firmware configurations. The 'LQXI' suffix indicates an industrial-grade 40-pin QFN package, whereas other variants may offer different pinouts or temperature tolerances. Some specific part numbers are factory-configured for specific roles, such as power adapters (DFP) or power banks (DRP), though most retain the underlying hardware capability for full PD programmability.



