LTC4120EUD in Linear Tech / ADI LT Series Family
The LTC4120EUD sub-family, engineered by Analog Devices (formerly Linear Technology), is a series of wireless power receivers and constant-current/constant-voltage (CC/CV) battery chargers. Designed specifically for wireless charging applications, these ICs integrate a buck switching regulator with Dynamic Harmonization Control to optimize power transfer across varying coupling gaps. They are primarily utilized in systems requiring a robust, contactless charging solution for single-cell Li-Ion or Li-Polymer batteries in environments where physical connectors are impractical or impossible.
Variants in This Sub-Family
Variants within the LTC4120EUD sub-family primarily differ in their fixed float voltage settings and packaging options. For instance, the LTC4120-4.2 is pre-configured for standard 4.2V Li-Ion chemistries, while the base LTC4120 model features a programmable float voltage via an external resistor divider. Thermal grades also vary, with 'E' and 'I' designations specifying operation across different ambient temperature ranges for commercial versus industrial deployments.
