Intersil Introduces New Family of VR11 PWM Controllers

Intersil Corporation, a designer and manufacturer of high-performance analog solutions, has introduced a new family of VR11 PWM (pulse width modulation) controllers with the industry's highest accuracy, the company said.

The ISL6306/07 family and Intersil FET drivers provide the control and switching functions for VR11 CPU core multiphase buck dc-dc converters on desktop, workstation, server, and industrial PC motherboards. These devices also feature 2-, 3-, 4-, 5-, or 6-phase operation for flexible voltage regulator design.

Intersil also announced sampling of its ISL6326/27 VR11 controller family with a new, proprietary, dual-edge pulse width modulation scheme that is pin-to-pin-compatible with the ISL6306/07, and enables capacitor elimination for further system cost reductions.

"Intersil's ISL6306/07 family addresses all VR11 CPU power requirements in desktop, server and embedded systems," said George Lakkas, senior product marketing manager of Intersil's Power Management group. "These VR11 PWM controllers are the industry's first with integrated loadline and over-current protection (OCP) temperature compensation, enabling the designer to maintain the same current limit threshold over temperature without any increase in external components.

"Additionally, we're sampling the ISL6326/27 VR11 PWM controllers that are drop-in enhancements to the released ISL6306/07 family, and enable significant bulk output capacitor reduction due to our proprietary, dual-edge PWM architecture. The ISL6326/27 enable the highest-performance-to-price ratio VR11 CPU core regulator, and customers can drop them into their existing systems using the ISL6306/07 family."

Intersil designs and manufactures high-performance analog semiconductors. Intersil products include power management devices for battery management, hot-swap and hot-plug controllers, linear regulators, supervisory ICs, switching dc-dc regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high-performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and rad-hard applications.