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SC453

Part Number	SC453
Manufacturer	Semtech Corporation
Description	VID Programmed Single Phase Power Supply Controller
Published	Nov 17, 2008
Detailed Description	Portable, VID Programmed Single Phase Power Supply Controller POWER MANAGEMENT Description The SC453 IC is a single chip...
Datasheet	SC453 PDF File

Overview

... high-performance Hysteretic PWM controller.
With its integrated SmartDriver™, it powers advanced graphics and core processors.
It provides sleep mode and boot voltage support.
Automatic "powersave" is present to prevent negative current flow in the low-side FET during light loading conditions saving even more power.
The high side driver initially turns on with a weak drive to reduce ringing, EMI, and capacitive turn-on of the low side.
A 6-bit DAC, accurate to 0.
85%, sets the output voltage reference, and implements the 0.
700V to 1.
708V range required by the processor.
The hysteretic converter uses a comparator without an error amplifier, and therefore provides the fastest possible transien...

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