- Dec 30, 2002
Has anybody noticed the new boards from AMB Labs?
σ78 ("sigma 78") and σ79 ("sigma 79") are DC voltage regulators designed as high-performance replacements for the common 78xx/79xx, LM340/LM320 and LM2940/LM2990 series of 3-terminal IC voltage regulators.* In most cases, a direct swap is possible due to physical, heatsink and pin compatibility. σ78 is a positive voltage regulator, just like the 78xx series, whereas the σ79 is a negative voltage regulator like the 79xx. σ7x offers much lower noise and other improved performance attributes.