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From: "Edward Rawde" <invalid@invalid.invalid>
Newsgroups: sci.electronics.design
Subject: Re: P-channel MOSFET model
Date: Mon, 6 May 2024 02:02:05 -0400
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"Edward Rawde" <invalid@invalid.invalid> wrote in message 
news:v19rhq$24dg$1@nnrp.usenet.blueworldhosting.com...
> "John Larkin" <jjSNIPlarkin@highNONOlandtechnology.com> wrote in message 
> news:aesf3j1po3glh1c23se3lofoni6j7ol75m@4ax.com...
>> On Sun, 5 May 2024 14:42:30 -0400, "Edward Rawde"
>> <invalid@invalid.invalid> wrote:
>>
>>>"Edward Rawde" <invalid@invalid.invalid> wrote in message
>>>news:v16s2i$2uv4$1@nnrp.usenet.blueworldhosting.com...
>>>> Does anyone know of a P-channel MOSFET, roughly equivalent to
>>>> XP233P1501TR-G which has a model I can use in LTSpice?
>>>> XP202A0003PR-G would be useful too.
>>>
>>>Infineon BSS215P  might be more suitable for the FET.
>>>That does have a simulation model.
>>>http://www.infineon.com/dgdl/Infineon-SimulationModel_OptiMOS_PowerMOSFET_PSpice_20V_P-Channel-SM-v01_00-EN.zip?fileId=db3a30433d346a2d013d493ff9d160ab
>>>I'll have to look into how compatible the model is with LTspice.
>>>
>>>Microchip TC105 is also interesting but a bit pricey.
>>>However it does lead to CD54NP as a possible choice for the inductor.
>>>MA737 doesn't seem to be easily available but a suitable shottky diode
>>>shouldn't be hard to find.
>>>
>>>Vishay SI2371EDS-T1-GE3 looks interesting too.
>>>Not too pricey for lower on resistance.
>>>
>>>>
>>>>
>>>
>>
>> Some of the TI TPS5- series buck switchers are 19 cents.
>>
>> Your circuit looks like a good way to blow up transistors.
>>
>
> Here's 12V to 5V 1A using the concept I had in mind of using a comparator 
> capacitively coupled to a FET.
> Also using only components I could find in a fresh install of LTSpice.
> If it doesn't work, fix the character encoding issue in the value of some 
> components.
>
> Don't worry it won't be going into production any time soon.
>
> Comments/laugter is welcome.
>
May need to fix line wraps too.