IR3081A
DESCRIPTION
The IR3081A Control IC bined with an IR XPhase TM Phase IC provides a full featured and flexible way to implement a plete 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. The XPhase TM architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches. The IR3081A is intended for VRD 10 or VRM/EVRD 10 applications that use external VCCVID/VTT circuits. The IR3081A is functionally equivalent to the IR3081, but incorporates the following modifications:
- Under Voltage Lockout start threshold increased from 9.1V to 9.7V (typical) and hysteresis increased from 200m V to 800m V (typical).
- Hysteresis (52m V typical) added to the SS/DEL parator to prevent Power Good output chatter.
- Over current discharge current increased from 6u A to 40u A (typical) to...
