Question for Win: P-channel Power MOSFETs?

[Jim Thompson]

Win, Are there any P-channel Power MOSFETS that will work at 3.3V
supplies, 300mA < ID < 1A ??

Thanks!

...Jim Thompson

 

[Spehro Pefhany]

Win, Are there any P-channel Power MOSFETS that will work at 3.3V
supplies, 300mA < ID < 1A ??

I'm not Win, but here's a couple:

http://www.fairchildsemi.com/ds/FD/FDG314P.pdf
http://www.fairchildsemi.com/ds/ND/NDS332P.pdf <-- April 1 est avail
at Digikey.

There's plenty more if you allow Id>1A, but I suppose you want low
gate charge.

Best regards,
Spehro Pefhany

 

[Jim Thompson]

I'm not Win, but here's a couple:

http://www.fairchildsemi.com/ds/FD/FDG314P.pdf
http://www.fairchildsemi.com/ds/ND/NDS332P.pdf <-- April 1 est avail
at Digikey.

There's plenty more if you allow Id>1A, but I suppose you want low
gate charge.

Best regards,
Spehro Pefhany

Thanks, Spehro, I picked up a chip cell design that requires some
external power devices :-(

...Jim Thompson

 

[Winfield Hill]

Spehro Pefhany <Spehro Pefhany wrote...

I'm not Win, but here's a couple:
http://www.fairchildsemi.com/ds/FD/FDG314P.pdf
http://www.fairchildsemi.com/ds/ND/NDS332P.pdf <-- April 1
est, avail at Digikey.

There's plenty more if you allow Id > 1A, but I suppose you
want low gate charge.

Very nice, Spef...!

p-chan Vds Ciss R(on)
------- --- ---- -----
FDG314P 25V 63pF 1.5-ohms at Vgs = 2.7V
NDS332P 20V 195 0.41

It's interesting how the related n-channel devices fare much
better for low gate charge, for similar R(on).

n-chan
-------
FDG313N 25V 50 0.6

Thanks,
- Win

whill_at_picovolt-dot-com

 

[Jim Thompson]

Spehro Pefhany <Spehro Pefhany wrote...

Very nice, Spef...!

p-chan Vds Ciss R(on)
------- --- ---- -----
FDG314P 25V 63pF 1.5-ohms at Vgs = 2.7V
NDS332P 20V 195 0.41

It's interesting how the related n-channel devices fare much
better for low gate charge, for similar R(on).

n-chan
-------
FDG313N 25V 50 0.6

Thanks,
- Win

whill_at_picovolt-dot-com

Now can either of you two recommend a companion Schottky (max reverse
voltage is 4V)?

...Jim Thompson

 

[Ken Smith]

http://www.fairchildsemi.com/ds/FD/FDG314P.pdf
http://www.fairchildsemi.com/ds/ND/NDS332P.pdf <-- April 1 est avail
at Digikey.

Also check out http://www.supertex.com/pdf/datasheets/LP0701.pdf

 

[Winfield Hill]

Ken Smith wrote...

Also check out http://www.supertex.com/pdf/datasheets/LP0701.pdf

Hmm, a p-mos type specified at 2-ohms typical at -2V, very nice.

Thanks,
- Win

whill_at_picovolt-dot-com

 

[Leeper]

Or depending on the trade-offs you need, this is another interesting
part.

http://www.onsemi.com/pub/Collateral/MGSF2P02HD-D.PDF

 

[Jim Thompson]

Or depending on the trade-offs you need, this is another interesting
part.

http://www.onsemi.com/pub/Collateral/MGSF2P02HD-D.PDF

[snip]

Thanks!

...Jim Thompson

 

[Leeper]

No problem Jim, anytime!

Or depending on the trade-offs you need, this is another interesting
part.

http://www.onsemi.com/pub/Collateral/MGSF2P02HD-D.PDF

[snip]

Thanks!

...Jim Thompson