The SR9900 with Ethernet ICs QFN-24 RoHS is an integrated circuit (IC) manufactured by CoreChips. It provides a full-featured 2.5G/1G/100M Ethernet Physical Layer (PHY) transceiver solution for high-speed wired communication applications. It is suitable for connection to Ethernet switches, hubs, modems, and directly connected to host processors and media access controllers (MACs). The PHY features low power, high-speed, high-transmission and low-latency, making it an ideal solution for high-speed wired communication while still providing an excellent power-efficiency. The SR9900 includes advanced features such as Flow Control, auto-negotiation, polarity reversal detection, smart power down, and 10M/100M/1G auto-detection. It is compliant with IEEE 802.3 standards and offered in an extremely small QFN-24 RoHS foot print. Additionally, it provides extensive power management features with 3 external on-board LDOs (low-drop-out regulators), which allow for both power savings and system design flexibility.