Core Functional Blocks
The MAX77759A is a highly integrated, multi-functional companion PMIC optimized for USB Type-C architectures, combining three primary subsystems onto a single die:
- Battery Charger Subsystem: Manages the step-down switching regulation, controlling the power delivery path from the USB input to the system and battery.
- Fuel Gauge (FG) Engine: Integrates Maxim’s proprietary ModelGauge m5 algorithm to provide highly accurate battery state-of-charge (SoC) tracking without requiring a traditional sense resistor.
- USB Type-C Companion Controller: Interface blocks designed to detect orientation, negotiate power contracts, and handle overvoltage protection (OVP).




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