Datasheet

PTV12020W/L

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SLTS231C –NOVEMBER 2004–REVISED FEBRUARY 2007

voltage applied to the Track control pin, the output sinks current during the period that the track control

voltage is below that of the back-feeding source. For this reason, it is recommended that Auto-Track be

disabled when not being used. This is accomplished by connecting the Track pin to the input voltage, V

. This

raises the Track pin voltage well above the set-point voltage prior to the module’s start up, thereby, defeating

the Auto-Track feature.

3. To further ensure that the regulator's output does not sink current when power is first applied (even with a

ground signal applied to the Inhibit control pin), the input voltage must always be greater than the applied

prebias source. This condition must exist throughout the power-up sequence of the power system.

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