Increase system reliability for POL conversions

The ISL8002B enables greater system reliability through several innovative features. For example, the regulator’s output tracking and sequencing of FPGAs and MPUs ensures sensitive multi-rails properly start up and shut down. In addition, the device's output rails are configurable for coincidental, ratiometric or sequential settings, ensuring the FPGA or MPU’s internal ESD diodes are not biased or overstressed during rising or falling outputs. The regulator’s undervoltage lockout and other protection features safeguard the system from damage when an unwanted electrical fault event occurs, while its negative current protection prevents switch failure.

The device’s superior transient response and high level of integration enable a complete synchronous step-down DC/DC converter solution in less than a 0.10”² footprint. By integrating low R_DS(ON) high-side PMOS and low-side NMOS MOSFETs, the ISL8002B eliminates the need for a bootstrap capacitor and diode, while its high efficiency allows the use of small inductors to further reduce board space.

“The number of voltage rails is proliferating across a broad range of applications, creating more complex system designs,” said Mark Downing, Senior Vice President, Infrastructure and Industrial Power Products, Intersil. “The ISL8002B synchronous buck regulator provides designers an easy to use, compact POL solution with the right combination of features required to improve reliability for the most demanding systems.”

The ISL8002B synchronous buck regulator is available now in a 2x2mm, 8-pin TDFN package, priced at $1 each and sold in 1,000 quantities. The ISL8002BDEMO1Z demonstration board can be purchased for $23 each.