In IEEE 802.3bt Power over Ethernet (PoE) applications, an isolated power supply is implemented in most Power Devices (PDs) for safety considerations. In addition, DC-DC output overcurrent protection is an important topic especially end-equipment damage that creates an output short circuit condition. This paper introduces the thermal issues that can exist in a prolonged output short condition and how to alleviate any thermal concerns with discrete hiccup circuit. This circuit could be implemented in all of tps2375x family of PoE PDs.