The ISL85402 is a synchronous buck controller with an integrated 125mΩ high-side MOSFET and low-side driver, designed for buck or boost-buck converter applications with an input voltage range of 3V to 36V. It supports 2.5A continuous output current at 5V output, 8V to 36V input, 500kHz switching frequency, and +105°C ambient temperature with still air. The device is available in a 20-lead 4mm × 4mm QFN package with a bottom thermal pad for enhanced thermal performance. It features selectable forced PWM or PFM mode, programmable switching frequency from 200kHz to 2.2MHz, ±1% voltage regulation accuracy, and comprehensive protections including cycle-by-cycle current limiting, frequency foldback, hiccup mode, overvoltage, and over-temperature shutdown. The ISL85402IRZ variant is rated for operation from -40°C to +105°C and is Pb-free and RoHS compliant.
2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter
| Rochester Electronics | |
|---|---|
| Product Category | Metal-Oxide Semiconductor FET (MOSFET) |
| Product Number | ISL85402IRZ |
| Package Type | QFN20 |
