XPhase IC device features power-saving function
An International Rectifier product story
Edited by the Electronicstalk editorial team Oct 2, 2009
International Rectifier (IR) has introduced the IR3527 XPhase dual-phase IC with an independent power-saving function (PSI) for energy-efficient multiphase server applications.
The IR3527 IC drives and monitors two phases of a multiphase synchronous buck converter to reduce the overall system cost and the size of the complete solution.
The device implements an independent PSI for each power stage and sequential phase timing for use in single-output multiphase converters.
When the power-saving mode is enabled, 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.
The IR3527's current sense amplifiers remain active when in power-saving mode to support adaptive voltage positioning.
Combined with IR's latest-generation XPhase control ICs - such as the IR3502B, which can interface with any number of IR3527 phase ICs - the IR3527 provides a full-featured, flexible and cost-effective way to implement energy-efficient multiphase power solutions that optimise board space, according to the company.
IR's new Gen3 XPhase device features converter output voltage up to 5.1V, loss-less inductor current sensing, feed-forward voltage mode control and integrated bootstrap synchronous PFET.
The IR3527 provides the self calibration of pulse-width-modulation ramp, current share amplifier and single-wire bidirectional average current sharing, as well as a debugging function to isolate the phase from the converter.
The RoHS-compliant device is available in a small, thermally enhanced, 24L 4 x 4mm MLPQ package.
Not what you're looking for? Search the site.
Google Ads
Contact International Rectifier
Related Stories
Browse by category
- Active Components (11,490)
- Active Components (4)
- Analogue and Mixed Signal ICs (1,709)
- Communications ICs (Wired) (1,795)
- Communications ICs (Wireless) (1,582)
- Discrete Power Devices (426)
- Memory Devices and Modules (766)
- Microprocessors, Microcontrollers and DSPs (2,063)
- Power Supply ICs and Controllers (2,399)
- Programmable Logic Devices (604)
- Standard Logic Devices (142)
- Design and Development (9,570)
- Design and Development (1)
- Design and Development Hardware (1,034)
- Design and Development Software (4,641)
- Design Services (309)
- Embedded Software and Operating Systems (1,678)
- Intellectual Property Cores (1,554)
- Reference Designs (353)
- Electronics Manufacturing, Packaging (3,233)
- Enclosures and Panel Products (3,448)
- Enclosures and Panel Products (2)
- Fans and Blowers (228)
- Floor-Standing Racks, Cabinets, Enclosures (252)
- Gaskets, Seals and Screens (125)
- Handheld and Other Small Enclosures (142)
- Heatsinks and Thermal Management (202)
- Indicators and Audio (80)
- Instrument Cases, Benchtop, Wall-Mounting Enclosures (344)
- LCD Modules (491)
- Monitors (134)
- Other OEM Display Modules, Meters (240)
- Printers, Knobs, Bezels, Other Panelware (156)
- Rotary Controls, Joysticks etc (138)
- Switches and Keyboards (598)
- Touchscreens and Touch Sensors (309)
- Industry News (1,969)
- Interconnection (3,128)
- Antennas and Feeders (315)
- Boards and Backplanes (156)
- Cables and Wires (472)
- Interconnection (12)
- PCB Connectors (607)
- Plugs and Sockets (1,225)
- Terminals and Power (286)
- Optoelectronics (1,744)
- Passive Components (3,190)
- Capacitors (691)
- Circuit Protection Devices (505)
- Electromechanical Components (575)
- EMC Components (412)
- Frequency Control Components (429)
- Passive Components (1)
- Resistors (317)
- Transformers and Inductors (260)
- Power Supplies (2,535)
- AC/DC Power Supplies (1,057)
- Batteries and Chargers (252)
- DC/AC Inverters (78)
- DC/DC Convertors (918)
- OEM Power Supplies (0)
- Power Supplies (7)
- UPSs (223)
- Subassemblies (4,980)
- CompactPCI Boards, Assemblies (380)
- Embedded Computing and Control (1,342)
- Networking Hardware (943)
- PC-Compatible Boards, Assemblies (804)
- Subassemblies (1)
- VMEbus Boards, Assemblies (424)
- Wireless Communications (1,086)
- Test and Measurement (5,262)
- ATE Systems (393)
- Board-Level Instruments (556)
- Compliance Engineering (908)
- Sensors and Data Acquisition (923)
- Stand-Alone Instruments (2,032)
- Test Accessories (430)
- Test and Measurement (5)
