www.DataSheet4U.com
IR3500
DATA SHEET XPHASE3TM VR11.0 & AMD PVID CONTROL IC
DESCRIPTION
The IR3500 Control IC combined...
www.DataSheet4U.com
IR3500
DATA SHEET XPHASE3TM VR11.0 & AMD PVID CONTROL IC
DESCRIPTION
The IR3500 Control IC combined with an xPHASE3 Phase IC provides a full featured and flexible way to implement a complete VR11.0 or AMD PVID 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 TM multiphase converter. The XPhase3 architecture implements a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches.
TM
FEATURES
1 to X phase operation with matching Phase IC VID Select pin configures AMD 5 or 6 bit PVID, Intel VR11 with/out startup to 1.1V Boot
voltage 0.5% overall system set point accuracy Programmable 250kHz to 9MHz Daisy-chain digital phase timing clock oscillator frequency provides a per phase switching frequency of 250kHz to 1.5MHz without external components Programmable Dynamic VID Slew Rate Programmable VID Offset or No Offset Programmable Load Line Output Impedance High speed error amplifier with wide bandwidth of 30MHz and fast slew rate of 12V/us Programmable converter current limit during soft start, hiccup with delay during normal operation Central over
voltage detection with programmable threshold and communication to phase ICs Over
voltage signal output to system with over
voltage detection during powerup and normal operation Detection and protection of o...