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From: Joerg on 9 Jan 2010 15:57
TTman wrote:
> "Joerg" <invalid(a)invalid.invalid> wrote in message
> news:7qrsg2FdjaU2(a)mid.individual.net...
>> TTman wrote:
>>> "Joerg" <invalid(a)invalid.invalid> wrote in message
>>> news:7qpvfoF1rrU1(a)mid.individual.net...
>>>> TTman wrote:
>>>>> Any suggestions? ...
>>>> LTC3810.
>>>>
>>>>
>>>>> ... Will a separate fet be a cheaper solution ?
>>>> Yes.
>>>>
>>>>
>>>>> TIA
>>>> YAW (you are welcome) :-)
>>>>
>>>> --
>>>> Regards, Joerg
>>> Thanks but I need something small.... 8 pin soic ?
>> For five amps? That would require a water cooling feature :-)
>>
>> --
>> Regards, Joerg
>>
>>
> I've found MAX 8546 + fairchild fet FDS6982..... suits the bill ( I think)
>

Only 174 in stock at Digikey, I'd be careful if that goes into a
product. Then again I never spec Maxim parts anyway.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
From: TTman on 9 Jan 2010 17:24
>>>>> --
>>>>> Regards, Joerg
>>>> Thanks but I need something small.... 8 pin soic ?
>>> For five amps? That would require a water cooling feature :-)
>>>
>>> --
>>> Regards, Joerg
>>>
>>>
>> I've found MAX 8546 + fairchild fet FDS6982..... suits the bill ( I
>> think)
>
> Only 174 in stock at Digikey, I'd be careful if that goes into a product.
> Then again I never spec Maxim parts anyway.
>
> --
> Regards, Joerg
>
Plenty(enough) in Farnell UK... (I'm uk)


From: Hammy on 9 Jan 2010 17:33
On Sat, 09 Jan 2010 12:57:27 -0800, Joerg <invalid(a)invalid.invalid>
wrote:

>TTman wrote:
>> "Joerg" <invalid(a)invalid.invalid> wrote in message
>> news:7qrsg2FdjaU2(a)mid.individual.net...
>>> TTman wrote:
>>>> "Joerg" <invalid(a)invalid.invalid> wrote in message
>>>> news:7qpvfoF1rrU1(a)mid.individual.net...
>>>>> TTman wrote:
>>>>>> Any suggestions? ...
>>>>> LTC3810.
>>>>>
>>>>>
>>>>>> ... Will a separate fet be a cheaper solution ?
>>>>> Yes.
>>>>>
>>>>>
>>>>>> TIA
>>>>> YAW (you are welcome) :-)
>>>>>
>>>>> --
>>>>> Regards, Joerg
>>>> Thanks but I need something small.... 8 pin soic ?
>>> For five amps? That would require a water cooling feature :-)
>>>
>>> --
>>> Regards, Joerg
>>>
>>>
>> I've found MAX 8546 + fairchild fet FDS6982..... suits the bill ( I think)
>>
>
>Only 174 in stock at Digikey, I'd be careful if that goes into a
>product. Then again I never spec Maxim parts anyway.

Did you see the TPS40200D 8-SOIC

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=296-21153-5-ND



http://focus.ti.com/docs/prod/folders/print/tps40200.html

Semtech makes some inexpensive controllers as well.
From: Joerg on 9 Jan 2010 18:21
Hammy wrote:
> On Sat, 09 Jan 2010 12:57:27 -0800, Joerg <invalid(a)invalid.invalid>
> wrote:
>
>> TTman wrote:
>>> "Joerg" <invalid(a)invalid.invalid> wrote in message
>>> news:7qrsg2FdjaU2(a)mid.individual.net...
>>>> TTman wrote:
>>>>> "Joerg" <invalid(a)invalid.invalid> wrote in message
>>>>> news:7qpvfoF1rrU1(a)mid.individual.net...
>>>>>> TTman wrote:
>>>>>>> Any suggestions? ...
>>>>>> LTC3810.
>>>>>>
>>>>>>
>>>>>>> ... Will a separate fet be a cheaper solution ?
>>>>>> Yes.
>>>>>>
>>>>>>
>>>>>>> TIA
>>>>>> YAW (you are welcome) :-)
>>>>>>
>>>>>> --
>>>>>> Regards, Joerg
>>>>> Thanks but I need something small.... 8 pin soic ?
>>>> For five amps? That would require a water cooling feature :-)
>>>>
>>>> --
>>>> Regards, Joerg
>>>>
>>>>
>>> I've found MAX 8546 + fairchild fet FDS6982..... suits the bill ( I think)
>>>
>> Only 174 in stock at Digikey, I'd be careful if that goes into a
>> product. Then again I never spec Maxim parts anyway.
>
> Did you see the TPS40200D 8-SOIC
>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=296-21153-5-ND
>
>
>
> http://focus.ti.com/docs/prod/folders/print/tps40200.html
>
> Semtech makes some inexpensive controllers as well.


Well, yeah, with an external FET there are tons of chips.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
From: Joerg on 9 Jan 2010 18:24
TTman wrote:
>>>>>> --
>>>>>> Regards, Joerg
>>>>> Thanks but I need something small.... 8 pin soic ?
>>>> For five amps? That would require a water cooling feature :-)
>>>>
>>>> --
>>>> Regards, Joerg
>>>>
>>>>
>>> I've found MAX 8546 + fairchild fet FDS6982..... suits the bill ( I
>>> think)
>> Only 174 in stock at Digikey, I'd be careful if that goes into a product.
>> Then again I never spec Maxim parts anyway.
>>
>> --
>> Regards, Joerg
>>
> Plenty(enough) in Farnell UK... (I'm uk)
>

Ok, it's your design. But I warned ya :-)

A noticeable chunk of my consulting income resulted from Maxim
design-outs. The usual: You can easily buy or sample engineering
quantities. Then the purchasing folks place an order for x reels ...
phsssst ... "Oh dang!"

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
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