ISL85402

ISL85402 NOT RECOMMENDED FOR NEW DESIGNS RECOMMENDED REPLACEMENT PART ISL85403 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter DATASHEET FN7640 Rev 1.00 April 25, 2013 The ISL85402 is a synchronous buck controller with a 125mΩ high-side MOSFET and low-side driver integrated. The ISL85402 supports a wide input range of 3V to 36V in buck mode. It supports 2.5A continuous load under conditions of 5V VOUT, VIN range of 8V to 36V, 500kHz and +105°C ambient temperature with still air. For any specific application, the actual maximum output current depends upon the die temperature not exceeding +125°C with the power dissipated in the IC, which is related to input voltage, output voltage, duty cycle, switching frequency, board layout and ambient temperature, etc. Refer to “Output Current” on page 14 for more details. The ISL85402 has a flexible selection of operation modes of forced PWM mode and PFM mode. In PFM mode, the quiescent input ...