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SC488

Part Number	SC488
Manufacturer	Semtech Corporation
Description	Complete DDR1/2/3 Memory Power Supply
Published	Nov 17, 2008
Detailed Description	POWER MANAGEMENT Description The SC488 is a combination switching regulator and linear source/sink regulator intended fo...
Datasheet	SC488 PDF File

Overview

POWER MANAGEMENT Description The SC488 is a combination switching regulator and linear source/sink regulator intended for DDR1/2 memory systems.
The purpose of the switching regulator is to generate the supply voltage, VDDQ, for the memory system.
It is a pseudo-ﬁxed frequency constant on-time controller designed for high efﬁciency, superior DC accuracy, and fast transient response.
The purpose of the linear source/sink regulator is to generate the memory termination voltage, VTT, with the ability to source and sink 2.
8A peak curcom rents.
For the VDDQ regulator, the switching frequency is constant until a step in load or line voltage occurs at which time the pulse density, i...

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