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PX3664 pdf datasheet
消耗积分:2 |
格式:rar |
大小:666 |
2008-09-19
刘伟
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The PX3664 is a Digital Multiphase Controller designed
to provide core power for today’s high current processors
and memory by driving up to four synchronous-rectified
buck-converter channels in parallel. Interleaved timing of
the channels results in a higher ripple frequency,
reducing input and output ripple. With up to four phases,
each capable of up to 2 MHz operation, the PX3664 can
be used to build DC-DC converters that provide greater
than 120A of output current with excellent efficiency and
low ripple.
The PX3664 utilizes digital technology to implement all
control functions, providing the ultimate in flexibility and
stability. The PX3664 incorporates an industry standard
I2C-bus serial interface for control and monitoring.
Through the serial interface, the power supply designer
can quickly optimize designs and monitor system
performance. The interface allows the PX3664 to provide
digitized information for real time system monitoring and
control.
The PX3664 supports dynamic phasing capability which
allows the system to shed one or more phases based on
average current. Autonomous phase control circuitry will
drop phases when average current goes below specified
threshold and add phases when average current is above
the threshold. An I2C based user phase control mode is
also provided.
to provide core power for today’s high current processors
and memory by driving up to four synchronous-rectified
buck-converter channels in parallel. Interleaved timing of
the channels results in a higher ripple frequency,
reducing input and output ripple. With up to four phases,
each capable of up to 2 MHz operation, the PX3664 can
be used to build DC-DC converters that provide greater
than 120A of output current with excellent efficiency and
low ripple.
The PX3664 utilizes digital technology to implement all
control functions, providing the ultimate in flexibility and
stability. The PX3664 incorporates an industry standard
I2C-bus serial interface for control and monitoring.
Through the serial interface, the power supply designer
can quickly optimize designs and monitor system
performance. The interface allows the PX3664 to provide
digitized information for real time system monitoring and
control.
The PX3664 supports dynamic phasing capability which
allows the system to shed one or more phases based on
average current. Autonomous phase control circuitry will
drop phases when average current goes below specified
threshold and add phases when average current is above
the threshold. An I2C based user phase control mode is
also provided.
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