Control Chip Provides Flexible CPU Power Designs

Designed to power Intel processors per the VR11.0 and VR11.1 specifications, International Rectifier’s IR3502 XPhase control IC provides overall system control and interfaces with any number of the company’s XPhase phase ICs.

“The IR3502 is 50% smaller than a traditional six-phase control IC...Co-designed with the IR3507 phase IC and DirectFET MOSFETs, the XPhase chipset provides higher power density compared to traditional multiphase architectures,” said IR’s Jeff Sherman.

Device type: multiphase controller IC
Features: 0.5% overall system set point accuracy; daisy-chain digital phase timing for accurate phase interleaving without external components; programmable 250-kHz to 9-MHz clock oscillator frequency to provide per phase switching frequency of 250 kHz to 1.5 MHz; programmable dynamic VID slew rate; programmable VID offset or no offset; a high-speed error amplifier with 30-MHz bandwidth and 10-V/us slew rate; improved droop capability that reduces the potential need for an external thermistor
Packaging: 32-lead, 5-mm x 5-mm MLPQ
RoHS compliant? yes
Target applications: Intel microprocessors
Pricing: begins at $1.90 each in 10,000-unit quantities
Availability: available now
Data sheet posted on web? A partial datasheet is posted at http://www.irf.com/product-info/datasheets/data/ir3502mpbf.pdf . Also, see press release at http://www.irf.com/whats-new/nr080310.html .