Hi everyone, I just wanted to confirm if the following mosfets will work, since I want to do a “one fits all” design, using just replacement parts.
I want to build an “input agnostic” power supply.
It will be based on the following IC from Linear:
LT4320Input supply from 7V – 36V AC/DC using a 2.1mm barrel plug.
So, can someone please confirm if the following mosfets are suitable:
The design will be made in two variations, one SMT (MSOP) at some point in the future, and the other THT.
It will be for my own personal use and then I will share it once I have it working
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)
The SMT will only be used for up to 1Amp continuous
The mosfet I chose, is the
IRLML0040 (SOT23). Will this work?
For the voltage output, the following chip will be used:
LT3988It should not reach the total of 2Amps, i.e. 1Amp each rail, but around 100mA – 500mA tops on each rail.
The THT will use any of the following, depended on power need (Iout) :
IPP040N06N or similar but cheaper
hereIPP060N06NIRFIZ24NIf someone can suggest a TO-92 package for up to 1-2amps… or other TO220 with less amperage, that would be great, as I am not sure at what characteristics I should be looking for.
2SK975TZ-E or the same one in
stock would this work?
![Roll Eyes ::)](https://www.eevblog.com/forum/Smileys/default/rolleyes.gif)
or will it be a
![Face Palm :palm:](https://www.eevblog.com/forum/Smileys/default/facepalm.gif)
. If this TO-92 does work, that mean I will have one less component to worry about chaning over
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/wink.gif)
but will I need a
TO-92 heatsink for it?
![Undecided :-\](https://www.eevblog.com/forum/Smileys/default/undecided.gif)
As for the voltage regulator, it will be either of these:
Single output options will be 5V and then a 3V3 linear.
LTC3118 MAX5090MAX5035 1A THT available
LM2574 500mA PDIP
LM2575 1A PDIP
LM2576 3A TO-220-5
Come to think of it, I just want the “beefy” parts for a “just in case” future scenario, so up to 1A is adequate for me at the moment, and in the future, I will consider upping it more :-)
Just thinking of using this method instead of 4 diodes, of which shouldn't be an issue for low output current, but if I need more power or make what I want to use it for in the end, like for driving motors, and not worrying about any power adaptor if it will be suitable and what type it is and polarity etc, just thought to use this design.
Thank you to all in advance.