DESCRIPTION
The IR3082PbF Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible
way to implement a complete Opteron or Athlon64 power solution. The “Control” IC provides overall
system control and interfaces with any number of “Phase ICs” which each drive and monitor a single
phase of a multiphase converter. With simple 5 bit voltage programming and a few external components,
the IR3082PbF is also well suited for general purpose multiphase applications. The XPhaseTM architecture
results in a power supply that is smaller, less expensive, and easier to design while providing higher
efficiency than conventional approaches.

FEATURES
• 5 bit VID with 1% overall system set point accuracy
• Programmable Dynamic VID Slew Rate
• +/-300mV Differential Remote Sense
• Programmable 150kHz to 1MHz oscillator
• Programmable VID Offset and Load Line output impedance
• Programmable Softstart
• Programmable Hiccup Over-Current Protection with Delay to prevent false triggering
• Simplified Power Good output provides indication of proper operation and avoids false triggering
• Operates from 12V input with 9.75V Under-Voltage Lockout
• 7.0V/5mA Bias Regulator provides System Reference Voltage
• Small thermally enhanced 20L MLPQ package