LP2981-N_16 Datasheet, PDF (19/30 Pages) Texas Instruments – Micropower 100-mA Ultralow Dropout Regulator

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LP2981-N
SNOS773N – MARCH 2000 – REVISED APRIL 2016
The ON/OFF signal may come from either a totem-pole output, or an open-collector output with pullup resistor to
the LP2981-N input voltage or another logic supply. The high-level voltage may exceed the LP2981-N input
voltage, but must remain within the Absolute Maximum Ratings for the ON/OFF pin.
It is also important that the turnon/turnoff voltage signals applied to the ON/OFF input have a slew rate which is
greater than 40 mV/μs.
NOTE
IMPORTANT: The regulator shutdown function will not operate correctly if a slow-moving
signal is applied to the ON/OFF input.
8.2.3 Application Curves
Figure 36. 5-V, 3.3-μF ESR Curves
Figure 37. 5-V, 10-μF ESR Curves
Figure 38. 3-V, 3.3-μF ESR Curves
Figure 39. 3-V, 10-μF ESR Curves
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