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ISL6336B - 6-Phase PWM Controller

Datasheet Summary

Features

  • include a pin (IMON) for current monitoring and a Power State Indicator (PSI#) input pin to initiate a proprietary phase dropping and diode emulation scheme for higher efficiency at light load by dropping to 1- or 2-phase operation with optional diode emulation to reduce switching and core losses in the converter. After the PSI# signal is de-asserted, the dropped phase(s) are added back to sustain heavy load transient and efficiency. Today’s microprocessors require a tightly regulated output vol.

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Datasheet preview – ISL6336B

Datasheet Details

Part number ISL6336B
Manufacturer Intersil
File Size 751.85 KB
Description 6-Phase PWM Controller
Datasheet download datasheet ISL6336B Datasheet
Additional preview pages of the ISL6336B datasheet.

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Full PDF Text Transcription

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® Data Sheet August 31, 2010 ISL6336B FN6696.2 6-Phase PWM Controller with Light Load Efficiency Enhancement and Current Monitoring The ISL6336B controls microprocessor core voltage regulation by driving up to 6 interleaved synchronous-rectified buck channels in parallel. Multiphase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents. Lower ripple results in fewer components, lower component cost, reduced power dissipation, and smaller implementation area. Microprocessor loads can generate load transients with extremely fast edge rates and require high efficiency over the full load range.
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