Infineon Technologies AG Power Management - Specialized IRS25751LTRPBF

The IRS25751LTRPBF is a high-voltage start-up integrated circuit (IC) designed for applications requiring initial supply starting current from a high-voltage bus, capable of handling voltages up to 480V. It provides a constant output current of 4.5mA during start-up and features an ultra-low standby current of 2.5µA when off. The IC includes a fixed lower threshold of 4.2V, programmability for the upper turn-off threshold, and an ENN input for enhanced control. Additional protective features include over-temperature shutdown and integrated ESD protection on all pins, ensuring robust operation in demanding environments. The device is housed in a compact 5-pin SOT-23 package, making it suitable for various applications such as low standby power circuits and general-purpose switched mode power electronics.