Intersil Debuts ISL6565 Three-Phase Controller IC
Intersil Corp. (Milpitas, CA) announced the new Endura™ ISL6565 three-phase, synchronous-buck, pulse-width modulated (PWM) controller IC targeted to power Intel® Pentium® 4 processors on VR 10.X platforms. The ISL6565 offers high integration, low overall solution cost, popular current-sensing topologies, and the precision voltage control that is required for next-generation VR 10.X platforms to ensure stable upset-free operation of the CPU.
The high 1.5 MHz maximum per-phase switching frequency of the ISL6565 ensures low high-frequency ripple voltage that is easily filtered using smaller inductors and fewer than usual capacitors. The ISL6565A and ISL6565B are offered in the near-chip-scale, 28-pad, 5 mm x 5 mm, quad flat no-lead (QFN) and the 28-lead TSSOP packages. The QFN package provides enhanced thermal efficiency by transferring heat directly to the printed circuit board via a copper land on the ICs underbelly and the perimeter contact pads. The ISL6565 can run three phases at maximum switching frequency without the need for additional and costly heatsinking.
The ISL6565 is available now. The price in 100-unit to 999-unit quantities is $2.15 for each IC.
