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CPU voltage regulator integration
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Jamie M
May 14, 2013, 12:08:43 AM5/14/13
to
Hi,
Apparently some new Intel CPU's are being tested with on board voltage
regulators (2.4V input buck converters for CPU power rails). Whats
really surprising is these voltage regulators include the power mosfets
and also the inductors, and possibly even the capacitors I'm not sure!
The efficiency right now is only about 80% for the on die regulator,
which might be a deal killer I'd say, plus it is eating up expensive
real estate on the CPU die, and adding heat. But I wonder how long
until IR.com has a programmable one of these on their site?
Here are the links to the story and a pdf of the technology:
http://hardware.slashdot.org/story/13/05/13/2249209/intels-haswell-moves-voltage-regulator-on-die
http://www.psma.com/sites/default/files/uploads/tech-forums-nanotechnology/resources/400a-fully-integrated-silicon-voltage-regulator.pdf
cheers,
Jamie
Apparently some new Intel CPU's are being tested with on board voltage
regulators (2.4V input buck converters for CPU power rails). Whats
really surprising is these voltage regulators include the power mosfets
and also the inductors, and possibly even the capacitors I'm not sure!
The efficiency right now is only about 80% for the on die regulator,
which might be a deal killer I'd say, plus it is eating up expensive
real estate on the CPU die, and adding heat. But I wonder how long
until IR.com has a programmable one of these on their site?
Here are the links to the story and a pdf of the technology:
http://hardware.slashdot.org/story/13/05/13/2249209/intels-haswell-moves-voltage-regulator-on-die
http://www.psma.com/sites/default/files/uploads/tech-forums-nanotechnology/resources/400a-fully-integrated-silicon-voltage-regulator.pdf
cheers,
Jamie
Jasen Betts
May 14, 2013, 4:22:27 AM5/14/13
to
On 2013-05-14, Jamie M <jmo...@shaw.ca> wrote:
> Hi,
>
> Apparently some new Intel CPU's are being tested with on board voltage
> regulators (2.4V input buck converters for CPU power rails). Whats
> really surprising is these voltage regulators include the power mosfets
> and also the inductors, and possibly even the capacitors I'm not sure!
>
> The efficiency right now is only about 80% for the on die regulator,
> which might be a deal killer I'd say, plus it is eating up expensive
> real estate on the CPU die, and adding heat. But I wonder how long
> until IR.com has a programmable one of these on their site?
80% is not a big deal, the current crop of intel CPUs have tiny
> Hi,
>
> Apparently some new Intel CPU's are being tested with on board voltage
> regulators (2.4V input buck converters for CPU power rails). Whats
> really surprising is these voltage regulators include the power mosfets
> and also the inductors, and possibly even the capacitors I'm not sure!
>
> The efficiency right now is only about 80% for the on die regulator,
> which might be a deal killer I'd say, plus it is eating up expensive
> real estate on the CPU die, and adding heat. But I wonder how long
> until IR.com has a programmable one of these on their site?
heatsinks, and low heastsink clamping force compared to 4 years
ago. They can't be producing much heat to start with. Another
20% isn't going to be a big deal.
--
⚂⚃ 100% natural
rickman
May 14, 2013, 5:34:42 AM5/14/13
to
switchers for a number of years that include on die magnetics. I agree
that it seems an odd duck to want to include in the CPU package much
less on the die.
--
Rick
John Larkin
May 14, 2013, 10:40:52 AM5/14/13
to
the CPU but not the same chip.
The umpta-phase switcher is cool. I've done three phase, but IC designers don't
much care about parts count.
What's the "virus" on p18 of the PDF?
--
John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators
lang...@fonz.dk
May 14, 2013, 11:58:32 AM5/14/13
to
On May 14, 4:40 pm, John Larkin
>
> >>http://www.psma.com/sites/default/files/uploads/tech-forums-nanotechn...
they used is 65nm. don't know if it is even possible to do all the
thick metal and magnetic layers in the process used for the CPU
the e7330 they used is already two processor dies in one package
>
> The umpta-phase switcher is cool. I've done three phase, but IC designers don't
> much care about parts count.
>
> What's the "virus" on p18 of the PDF?
>
I believe that is what they call a special software that can put
maximum load on all parts of the chip at the same time
-Lasse
<jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
> On Tue, 14 May 2013 05:34:42 -0400, rickman <gnu...@gmail.com> wrote:
> >On 5/14/2013 12:08 AM, Jamie M wrote:
> >> Hi,
>
> >> Apparently some new Intel CPU's are being tested with on board voltage
> >> regulators (2.4V input buck converters for CPU power rails). Whats
> >> really surprising is these voltage regulators include the power mosfets
> >> and also the inductors, and possibly even the capacitors I'm not sure!
>
> >> The efficiency right now is only about 80% for the on die regulator,
> >> which might be a deal killer I'd say, plus it is eating up expensive
> >> real estate on the CPU die, and adding heat. But I wonder how long until
> >> IR.com has a programmable one of these on their site?
>
> >> Here are the links to the story and a pdf of the technology:
>
> >>http://hardware.slashdot.org/story/13/05/13/2249209/intels-haswell-mo...
> On Tue, 14 May 2013 05:34:42 -0400, rickman <gnu...@gmail.com> wrote:
> >On 5/14/2013 12:08 AM, Jamie M wrote:
> >> Hi,
>
> >> Apparently some new Intel CPU's are being tested with on board voltage
> >> regulators (2.4V input buck converters for CPU power rails). Whats
> >> really surprising is these voltage regulators include the power mosfets
> >> and also the inductors, and possibly even the capacitors I'm not sure!
>
> >> The efficiency right now is only about 80% for the on die regulator,
> >> which might be a deal killer I'd say, plus it is eating up expensive
> >> real estate on the CPU die, and adding heat. But I wonder how long until
> >> IR.com has a programmable one of these on their site?
>
> >> Here are the links to the story and a pdf of the technology:
>
>
> >>http://www.psma.com/sites/default/files/uploads/tech-forums-nanotechn...
>
> >That sounds a lot like the Enpirion technology. They have been selling
> >switchers for a number of years that include on die magnetics. I agree
> >that it seems an odd duck to want to include in the CPU package much
> >less on the die.
>
> It looks like the switcher is a separate piece of silicon, in the package with
> the CPU but not the same chip.
maybe that is because it is a test chip?, it says 90nm, the processor
> >That sounds a lot like the Enpirion technology. They have been selling
> >switchers for a number of years that include on die magnetics. I agree
> >that it seems an odd duck to want to include in the CPU package much
> >less on the die.
>
> It looks like the switcher is a separate piece of silicon, in the package with
> the CPU but not the same chip.
they used is 65nm. don't know if it is even possible to do all the
thick metal and magnetic layers in the process used for the CPU
the e7330 they used is already two processor dies in one package
>
> The umpta-phase switcher is cool. I've done three phase, but IC designers don't
> much care about parts count.
>
> What's the "virus" on p18 of the PDF?
>
maximum load on all parts of the chip at the same time
-Lasse
josephkk
May 18, 2013, 12:19:53 AM5/18/13
to
on chip. More likely the regulator is on chip but the switch, inductor,
and caps are in package. I'll bet it runs at some several MHz.
?-)
lang...@fonz.dk
May 18, 2013, 5:58:41 AM5/18/13
to
On May 18, 6:19 am, josephkk <joseph_barr...@sbcglobal.net> wrote:
>
> >http://www.psma.com/sites/default/files/uploads/tech-forums-nanotechn...
switches and inductors are on chip and it is programmable between
30 and 140MHz
-Lasse
> On Mon, 13 May 2013 21:08:43 -0700, Jamie M <jmor...@shaw.ca> wrote:
> >Hi,
>
> >Apparently some new Intel CPU's are being tested with on board voltage
> >regulators (2.4V input buck converters for CPU power rails). Whats
> >really surprising is these voltage regulators include the power mosfets
> >and also the inductors, and possibly even the capacitors I'm not sure!
>
> >The efficiency right now is only about 80% for the on die regulator,
> >which might be a deal killer I'd say, plus it is eating up expensive
> >real estate on the CPU die, and adding heat. But I wonder how long
> >until IR.com has a programmable one of these on their site?
>
> >Here are the links to the story and a pdf of the technology:
>
> >http://hardware.slashdot.org/story/13/05/13/2249209/intels-haswell-mo...
> >Hi,
>
> >Apparently some new Intel CPU's are being tested with on board voltage
> >regulators (2.4V input buck converters for CPU power rails). Whats
> >really surprising is these voltage regulators include the power mosfets
> >and also the inductors, and possibly even the capacitors I'm not sure!
>
> >The efficiency right now is only about 80% for the on die regulator,
> >which might be a deal killer I'd say, plus it is eating up expensive
> >real estate on the CPU die, and adding heat. But I wonder how long
> >until IR.com has a programmable one of these on their site?
>
> >Here are the links to the story and a pdf of the technology:
>
>
> >http://www.psma.com/sites/default/files/uploads/tech-forums-nanotechn...
>
> >cheers,
> >Jamie
>
> Cute. I expect that the shebang is more in package rather than completely
> on chip. More likely the regulator is on chip but the switch, inductor,
> and caps are in package. I'll bet it runs at some several MHz.
>
> ?-)
it's right there in the presentation, it is a separate chip but
> >cheers,
> >Jamie
>
> Cute. I expect that the shebang is more in package rather than completely
> on chip. More likely the regulator is on chip but the switch, inductor,
> and caps are in package. I'll bet it runs at some several MHz.
>
> ?-)
switches and inductors are on chip and it is programmable between
30 and 140MHz
-Lasse
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