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Voltage Regulator Designs for DDR DRAMS

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chanchg

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Hello Everybody,

Where can I get basic specs for designing Voltage Regulators for moderns DRAMS?
Any link, any article will be helpful..


Regards,
 

Kindly find the papers attached, They are to design a LDO for memories.
You shall face some hitches, but a good one

LOW-VOLTAGE LINEAR VOLTAGE REGULATOR SUITABLE FOR MEMORIES
W. Aloisi, S.M. Billé, G. Palumbo

ABSTRACT
In this communication a low-voltage linear voltage regulator in
CMOS technology is presented. It is based on a two class-AB
gain stage and, hence, does not suffers from internal slew-rate
limitation when very large load capacitances are used. The
linear regulator suitable for memory application was designed in
a 0.35 µm standard CMOS technology. The regulator can work
with a no-regulated input voltage in the range from 1.3 V to 3 V
providing a regulated voltage of 1 V with a load capacitance of 2.2nF
 

Hope this help:
h**p://users.ece.gatech.edu/rincon-mora/
 

Thanks to everyone... One more question...

How the Regulator specs changes for DDR RAMS used in Desktops and those used in NOtebooks?

Thanks,
 

In Desktops - you can use Linear regulator.

And those used in Notebooks you will use switch mode reg, this is to save power.

Regards


Moda
 

moda said:
In Desktops - you can use Linear regulator.

And those used in Notebooks you will use switch mode reg, this is to save power.

Regards


Moda
Click to expand...
Hi Moda:
what kind of switch mode reg needed?
Vin= ? Vout=? current mode/voltage mode? switching frequency ?

Thanks
 

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