International Rectifier, IR® (NYSE:IRF), a world leader in
power management technology, today introduced the IR3640M PWM control IC
for high performance synchronous DC-DC buck applications including
servers, storage, netcom, game consoles and general-purpose DC-DC
converters.
The IR3640M is a single phase synchronous buck PWM controller with
integrated MOSFET drivers and bootstrap diode. The device’s single loop
voltage mode architecture simplifies design while delivering precise
output voltage regulation and fast transient response.
“The IR3640M is a feature-rich controller that may be paired with IR’s
DirectFET® MOSFETs to deliver a highly flexible, efficient
solution and, because of its wide input and output voltage range can be
used in a variety of high performance point-of-load applications,” said
John Lambert, IR’s POL products marketing manager, Enterprise Power
Business Unit.
“Moreover, the IR3640M allows designers who use IR’s SupIRBuck™
integrated voltage regulators for loads lower than 12A to easily solve
their current needs in the 12 to 30A range, as the IC employs the same
control engine, monitoring and reporting as the newly established
SupIRBuck industry standard,” he added.
The IR3640M is designed to drive a pair of N-Channel MOSFETs from 250kHz
to 1.5MHz switching frequency, providing designers with the flexibility
to optimize the solution for best efficiency or smallest footprint. The
output voltage can be precisely regulated from as low as 0.7V within a
tolerance of +/-1% over temperature, line and load variations.
The new device integrates a range of features including programmable
soft start, pre-bias start up, voltage tracking, external
synchronization, enable input and Power Good output. Fault protection
features include thermal shutdown, over-voltage and over-current
shutdown and under-voltage lock out. The device is offered lead free and
is RoHS compliant.
More information is available on the International Rectifier website at http://www.irf.com/whats-new/nr090625.html
Design Support
A datasheet for the IR3640M is posted on the International Rectifier
website at www.irf.com.
In addition, a reference design kit, the IRDC3640, 25A, 600kHz
synchronous buck converter featuring the IR3640M PWM control IC and
IRF6710S and IRF6795M DirectFET® MOSFETs is available.
Availability and Pricing
Pricing for the IR3640MPbF begins at US $0.44 each in 10,000-unit
quantities. The IRDC3640 reference design kit costs US $94 per kit.
Production orders are available immediately. Prices are subject to
change.
About International Rectifier
International Rectifier (NYSE: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.
Trademark Notice
IR®, SupIRBuck™ and DirectFET® are
trademarks of International Rectifier Corporation. All other product
names noted herein may be trademarks of their respective holders.
International Rectifier Corporation
Sian Cummins, 1-310-252-7148
scummin1@irf.com
