IR's 35A IR3846 SupIRBuck® Integrated Voltage Regulator Delivers Over 97% Efficiency, Shrinks PCB Si
IR's 35A IR3846 SupIRBuck®Integrated Voltage Regulator Delivers Over 97% Efficiency, Shrinks PCB Size 60% Compared to Discrete Solutions
EL SEGUNDO, Calif.--(BUSINESS WIRE)-- International Rectifier, IR® (NYS: IRF) , a world leader in power management technology, today announced the introduction of the IR3846 35A Point-of-Load (POL) integrated voltage regulator for space constrained enterprise power applications including servers, storage and netcom and telecom equipment that require high power density.
The IR3846 offers industry leading efficiency greater than 97% peak, and 95% at 35A with the capability to operate directly from 12V at high switching frequency without the need for a heatsink or fan. The new device features remote differential sensing enabling 0.5% Vref accuracy between 0°C and 105°C making it well suited for high power FPGAs and ASICs requiring 1% DC or 3% DC+AC accurate power supply.
As part of the Gen3 SupIRBuck® family, the IR3846 features a proprietary modulator scheme that enables jitter-free and noise-free operation to allow higher frequency/higher bandwidth operation for better transient response and fewer output capacitors, and space savings of 20% PCB space compared to alternative integrated solutions and 60% compared to discrete solutions.
"Leveraging the key attributes of IR's Gen3 SupIRBuck® technology, the IR3846 is a complete 35A solution that offers high density and superior performance in a highly compact 200mm2 footprint for today's space constrained server, network communications and storage systems," said Cecilia Contenti, IR's POL Senior Marketing Manager.
The pinout of the IR3846 is optimized for easy placement of bypass capacitors and the internal thermally compensated current limit offers three settings that allow programmability without extra components and layout complications.
More information is available on the International Rectifier website at http://www.irf.com/whats-new/nr131003.html
A datasheet and application notes are posted on the International Rectifier website at www.irf.com. The IRDC3846 reference design featuring the new device is also available.
Price and Availability
Pricing for the IR3846M begins at US $2.60 each in 100,000-unit quantities. The IRDC3846 reference design can be purchased for US $29 per kit. Production orders are available immediately.
About International Rectifier
International Rectifier (NYS: IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com.
Patent and Trademark Notice
IR® and SupIRBuck® are registered trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.
Sian Cummins, 310-252-7148
KEYWORDS: United States North America California
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