Road rage and dirtbag problem.

[hoyager]

Thanks, this isn't road rage specific but def LT1054 specific, I have 7815cv and 7915cv from Tayda and Futurlec which are MAR and CHN labelled at the bottom (country they're made maybe) and the ones from Futurlec (CHN) are working better... The ones from Tayda are reading all over the place on the diode test function on the mm.

The voltage drop of 1n4001's I have is all over the place too which is affecting input voltage to the regulators, not sure how this is affecting the output of the regs. Haven't tried 1n5817 yet, will try 1n60p.

Apparently the cap between pins 2 and 4 needs to be low ESL and ESR which can be achieved with a ceramic or tant in parallel. Same goes I think on the caps to ground at the voltage outputs.

This is quite pertinent, to me anyway.

http://brettcave.net/howto/circuits/PowerSupply_DualRail-LT1054-Straight.pdf
http://brettcave.net/howto/circuits/PowerSupply_DualRail-LT1054-Boosted.pdf

I am trying to draw upwards of 50mah though from the 1054, and have 2 of them paralleled, but the components seem to influence outcome more..

Andy