ISL8541x Synchronous Buck Regulators

Renesas / Intersil's ISL8541x Synchronous Buck Regulators are a 150mA (ISL85412) or 300mA (ISL85413) synchronous buck regulator with an input range of 3.5V to 36V. It provides an easy-to-use, high-efficiency, low BOM count solution for a variety of applications. The ISL8541x integrates both high-side and low-side NMOS FET's and features a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is desired. The part switches at a default frequency of 700kHz. By integrating both NMOS devices and providing internal configuration, minimal external components are required, reducing BOM count and complexity of design. With the wide V_IN range and reduced BOM, the part provides an easy to implement design solution for a variety of applications while giving superior performance. It will provide a very robust design for high-voltage Industrial applications as well as an efficient solution for battery-powered applications.