IR3521 Datasheet (PDF) Download
International Rectifier
IR3521

Description

The IR3521 Control IC bined with an xPHASE3TM Phase IC provides a full featured and flexible way to implement a plete AMD SVID power solution.

Key Features

  • 2 converter outputs for the AMD processor VDD core and VDDNB auxiliary planes
  • Supports High Speed (HS) I2C Serial munications
  • PSI_L serial mands are municated to a programmable number of phase ICs
  • 0.5% overall system set point accuracy
  • High speed error amplifiers with wide bandwidth of 20MHz and fast slew rate of 10V/us
  • Remote sense amplifiers provide differential sensing and require less than 50uA bias current
  • Programmable Dynamic VID Slew Rates
  • Programmable VID Offset (VDD output only)
  • Programmable output impedance (VDD output only)
  • Programmable Dynamic OC for IDD_Spike