Apple™ has defined new overcurrent protection (OCP) requirements in its recent Accessory Design Guidelines for Apple Device spec, so the USB power providing accessories need to meet the new overcurrent protection requirements. Many RTMed USB chargers and USB controller devices cannot pass this test without making design adjustments. This application report introduces solutions to pass the MFi OCP test based on TPS2583x/4x-Q1. These methods can be used as reference for other USB controllers and USB switches.