The MAX17020 is a pin-for-pin replacement of the MAX8778.

General Description
The MAX17020 is a dual Quick-PWM™ step-down power-supply (SMPS) controller with synchronous rectification, intended for main 5V/3.3V or I/O 1.5V/1.05V power generation in battery-powered systems. Low side MOSFET sensing provides a simple low-cost, highly efficient current sense for valley current-limitprotection. Combined with the output overvoltage and undervoltage protection features, this current limit ensures robust output supplies.