I am trying to source an L4963 ( no suffix) switching regulator chip to repair a home control PC board.
Unfortunately everyone I have been able to track down as having these will only sell in 100's or has a minimum order value of 50 quid or more! I only want one and they are about a fiver. :-(
TIA
Hmmm are you looking at the surface mount (SO20) version or the "powerdip" version? The datasheet for the original part is here:
The packaging determines which suffix applies ... these ALWAYS have a suffix though it may not be printed on the chip.
I don't have any, but I think you could probably sub the whole thing with an L296P (available from Maplin at about a fiver) which will cover 5-40V up to
4A, though you'd have to rig up a daughter board and wire that to the original circuit and substitute a few components to get the right O/P voltage.Datasheet for L296P is here:
Their site also has application notes to DL.
You might also be able to use the L4962 which RS Components stock and will sell in units of 1 at £2.65 plus the vodka and tonic (yes this too has a different pinout, and fewer pins than the 4963).
repair
only
one
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