LP2981-N_15_15 Datasheet, PDF (18/29 Pages) Texas Instruments – LP2981-N Micropower 100-mA Ultra-Low Dropout Regulator in SOT-23 Package

LP2981-N
SNOS773M – MARCH 2000 – REVISED SEPTEMBER 2015
www.ti.com
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
18
Submit Documentation Feedback
Product Folder Links: LP2981-N
Copyright © 2000–2015, Texas Instruments Incorporated