Hi there,
I am searching for a DC-DC stepdown converter with up to at least 80V maximum input voltage, 200-300mA maximum output current and a programmable output voltage. The output will be adjusted to a voltage between 7V and 12V. The input voltage will range between 7 and 70V. An important feature is that when the input voltage drops below the output voltage, the output must track the input (of course minus a certain drop out voltage). So the converter is not allowed to shutdown in this mode.
Is this possible with an LM5010?, LM250xx or any other TI chip?
Thank you!