Power Integrations, Inc. Special Purpose Regulators DPA424GN

The DPA424GN is a highly integrated DC-DC converter IC designed for Power over Ethernet (PoE) and telecom applications. It operates within a wide input voltage range of 16-75 VDC and supports both forward and flyback topologies. The device can deliver a maximum output power of 35 W under specified conditions, making it suitable for various applications including VoIP phones, WLAN, and security cameras. This regulator features built-in protections such as auto-restart for output overload, undervoltage and overvoltage detection, and hysteretic thermal shutdown, ensuring reliable operation. It also includes user-configurable pins for selecting switching frequency (300/400 kHz) and programming current limits, which enhances design flexibility. The DPA424GN is available in multiple package options, including a thermally efficient TO-263-7C package for high power applications, as well as plastic DIP and surface mount options for designs up to 35 W. The device is RoHS compliant and incorporates energy-efficient features, such as low consumption at no-load and cycle skipping at light loads, contributing to high standby efficiency. Overall, the DPA424GN is a versatile choice for engineers looking for a compact and efficient power regulation solution in demanding applications.