Hi all
I'm using the L5970AD to provide a 3.3V supply, however the undervoltage lockout (UVLO) does not appear to operate when the input voltage drops too low for normal regulation to occur; that is, the output voltage does not shut down cleanly but droops at about 0.5V below the input voltage. This is proving a major problem as the equipment is battery operated some of the time. Does anyone have any info on what this device actually does or how the UVLO actually operates.
Cheers Brian