IR3081A Description
The IR3081A Control IC bined with an IR XPhaseTM 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 XPhaseTM architecture results in a power supply that is smaller, less expensive, and easier to design...
IR3081A Applications
- Under Voltage Lockout start threshold increased from 9.1V to 9.7V (typical) and hysteresis increased from 200mV to 800mV (typical)
- Hysteresis (52mV typical) added to the SS/DEL parator to prevent Power Good output chatter
- Over current discharge current increased from 6uA to 40uA (typical) to reduce the over current delay time
- IIN pin precondition circuit added to disable current sharing in the phase ICs during soft start