This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LT1054: LT1054

Part Number: LT1054

HII I AM USING THE LT1054 TO GENERATE  ( -5V) as a negative supply for an op-amp 

i build a circuit one a wire board and its working fine 

i edited circuit and build it on a pcb and the circuit is not stable 

i mean the output its not constant  -5v,  but it starts from -3v and goes down to -1 v when it reaches -1 it goes up to -3 ant then start to go down again to -1 v 

its not stable ' i checked the routing on the pcb and the component and its correct .

do you have any idea why is this happening??

thanks