The IM2603 is a power-management IC mainly for  Type-C peripheral applications. It integrates a  synchronous Buck converter with a built-in high-side  MOSFET and a gate driver for an optional low-side  external MOSFET. If the input voltage VIN decreases  to a voltage close to VOUT, it enters low dropout  operation with 100% duty cycle. It features an  internal fixed soft-start function and offers protection  features including input UVLO, cycle-by-cycle  current limit, output short-circuit protection (SCP) or  OVP and thermal shutdown. 

The IM2603 also control two N-MOSFETs as load  switches helping to reduce BOM cost. With a  micro-processor, it can realize input bulk capacitance  discharging during power swap.

The IM2603 is available in a 16-pin QFN package  with featuring an exposed die attach pad to aid  thermal dissipation.