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Well, If you pick a specialized single-source golden hammer to pound in a penny nail, don’t complain if the hammer is out of stock some times! This TPS27081A part is just a high-side power path switch that’s dressed uo in an expensive tuxedo. Instead, simply use a jelly-bean dual NMOS logic level switch (yeah, PMOS transistors have lower Rdson, but they are more expensive and harder to source). I won’t even bother with a parametric search, off the top of my head look at the ubiquitous FS8205A, they have 18mOhm Rdson per transistor and cost qty.-10 USD $0.0575 each, and qty.-1,000 $0.0384 each. Shipping containers full of these tiny SOT-23-6L 6A switches are made every week. There are three regular sources for the FS8205A that I can see. Right now LCSC lists 10,000+ FS8205A ready to go. See here:
Well, If you pick a specialized single-source golden hammer to pound in a penny nail, don’t complain if the hammer is out of stock some times! This TPS27081A part is just a high-side power path switch that’s dressed uo in an expensive tuxedo. Instead, simply use a jelly-bean dual NMOS logic level switch (yeah, PMOS transistors have lower Rdson, but they are more expensive and harder to source). I won’t even bother with a parametric search, off the top of my head look at the ubiquitous FS8205A, they have 18mOhm Rdson per transistor and cost qty.-10 USD $0.0575 each, and qty.-1,000 $0.0384 each. Shipping containers full of these tiny SOT-23-6L 6A switches are made every week. There are three regular sources for the FS8205A that I can see. Right now LCSC lists 10,000+ FS8205A ready to go. See here:
https://lcsc.com/search?q=FS8205A
And here is a datasheet:
https://datasheet.lcsc.com/lcsc/2010271837_FUXINSEMI-FS8205A_C908265.pdf