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. It provides outputs for both the VDD core and VDDNB auxiliary planes required by the CPU. The IR3521 provides overall system control and interfaces with any number of Phase ICs each driving and monitoring a single phase.
IR3521 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