IR3081A
Overview
The IR3081A Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way to implement a complete VR 10 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.
- 6 bit VR 10 compatible VID with 0.5% overall system accuracy 1 to X phases operation with matching phase ICs Programmable Dynamic VID Slew Rate No Discharge of output capacitors during Dynamic VID step-down (can be disabled) +/-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 Powergood provides indication of proper operation and avoids false triggering Operates from 12V input with 9.1V Under-Voltage Lockout 6.8V/5mA Bias Regulator provides System Reference Voltage Enable Input Small thermally enhanced 28L MLPQ pac
