The product is a USB power management IC that can simultaneously support USB On-The-Go and USB charging functions.
The document introduces the LTC3576, an integrated USB battery charger and power manager designed to combine USB On-The-Go functionality with battery charging in portable products. It explains how the device handles bidirectional power flow between a host and a peripheral using a switching regulator.
The text details the operational modes of the LTC3576, including its ability to act as a step-down converter for charging or a step-up converter for OTG A-device functionality. It covers mode detection protocols, system implementation strategies involving I2C control registers, and specific configurations for overvoltage protection and battery monitoring.
A device designated as a USB charger can supply up to 1.54.
The IC provides two 400mA and one 1A step-down switching regulators.
The default battery charge current has been set to 500mA.