https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.ti.com/lit/ml/slyp173/slyp173.pdf&ved=0ahUKEwjP7YzCzsjNAhXJcD4KHbfVBaIQFggqMAU&usg=AFQjCNHLctfFjfF5eBPKA07n3SfSwn1_Vw

And other basic info for PCBs