> <> > The LM2940 data sheet recommends a minimum of 22uF on the output and > 0.47uF on the input to assure stability. LDOs are fussy about output > caps. I have a 33 uF tantalum capacitor directly across the LM2740 regulator output. I also have the recommended 0.47uF across the input. The 10 uF and 0.1 uF capacitors are directly across the PIC itself. The distance between the 2940 output and the Pic is only 1.75 inches. Ed _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist