IR Unveils IR3527 XPhase Dual Phase IC

Power management technology specialist International Rectifier has reportedly unveiled the new IR3527 XPhase dual-phase IC with independent power savings function for energy-efficient multiphase server applications.

 

IR3527 XPhase is a RoHS compliant device with a small thermally enhanced 24L 4 x 4mm MLPQ package utilizing XPhase distributed multiphase architecture that consists of control ICs and phase ICs that communicate using a simple six-wire bus scheme. It even has an option to add or remove phases without changing the fundamental design.

 

According to the company, the best feature of this new device is that it complements an independent power savings function for each power stage and sequential phase timing for use in single output multiphase converters.

 

Whenever the power saving mode is on, the power stage disables its output, eliminating switching losses while the correct converter operation is maintained by the single power stage or in conjunction with other converter power stages.

 

In addition, the IR3527 provides self-calibration of PWM ramp, current share amplifier and single-wire bidirectional average current sharing as well as a debugging function to isolate the phase from the converter. Also, the current sense amplifiers in device remain active when in power savings mode to support adaptive voltage positioning.

 

George Schuellein, marketing director for IR’s Multiphase Products, Enterprise Power Business Unit, said that the new IR3527 -- combined with IR’s latest generation XPhase control ICs such as the IR3502B, which can interface with any number of IR3527 phase ICs -- provides a full-featured, flexible and cost-effective way to implement energy-efficient multiphase power solutions that optimize board space.

 

International Rectifier is currently offering the newIR3527TRPBF starting at $1.50 each in 10,000-unit quantities.

 

The company was recently in the news for introducing the AUIRS2016S for automotive gate drive applications, which include common injection rails, diesel and gasoline direct-injection applications and solenoid drivers.