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The OnsemiNCP1075STCT3G is a highly integrated PWM controller IC specifically designed for Power over Ethernet (PoE) applications. It features various protection mechanisms, high efficiency, and low standby power consumption. Functions: The NCP1075STCT3G IC provides various functions such as overvoltage protection, undervoltage lockout, thermal shutdown, and programmable frequency operation. It also incorporates a high-voltage startup circuit and a power factor correction. Applications: This IC is commonly used in PoE applications, network communications equipment, VoIP phones, wireless access points, security cameras, and other power supply systems requiring high efficiency and reliability. Alternative Parts: Alternatively, you may consider the Texas Instruments TPS23753A, the Maxim MAX5959B, or the Infineon ILIM01G. These ICs also provide power management solutions for PoE applications. Embedded Modules: The OnsemiNCP1075STCT3G does not feature embedded modules but can be used in conjunction with various external components such as power management modules, voltage regulators, and digital control components for complete system integration. Related Q&A: 1. Q: What is the maximum operating frequency of the OnsemiNCP1075STCT3G? A: The OnsemiNCP1075STCT3G has a programmable frequency operation with a maximum frequency typically ranging from 100kHz to 500kHz depending on the application. 2. Q: How does the overvoltage protection function of the NCP1075STCT3G work? A: The overvoltage protection of the NCP1075STCT3G triggers when the input voltage surpasses a preset threshold, causing the controller to enter a protection mode and shut down the power supply temporarily. 3. Q: Can the OnsemiNCP1075STCT3G be used in low-power standby applications? A: Yes, the NCP1075STCT3G is designed with low standby power consumption in mind, making it suitable for applications requiring efficient standby operation while maintaining power supply readiness.