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Add Texas Instruments TPL5111 - Nano Power Timer, Active-High

Ed Peguillan III requested to merge github/fork/yankee14/TI_TPL5111 into master

This is an ultra low power timer from TI. It draws 35 nA while running. Timing interval set with a resistor, from 100 ms to 2 h, 1% accuracy typical. Can be triggered manually. It is designed to be used as a low side driver or active-high enabler, e.g. for the enable pin on a voltage regulator. It has an optional one-shot mode driving high only once.

Datasheet: http://www.ti.com/lit/ds/symlink/tpl5111.pdf

Screenshot: tpl5111

Footprint: SOT-23-6* 1. https://github.com/KiCad/kicad-footprints/blob/master/Package_TO_SOT_SMD.pretty/SOT-23-6.kicad_mod 2. https://github.com/KiCad/kicad-footprints/blob/master/Package_TO_SOT_SMD.pretty/SOT-23-6_Handsoldering.kicad_mod

NOTE: The manufacturer's datasheet differs from the stock KiCad footprint. By the datasheet, the pad centerline distance between the two columns of pads should be 2.7 mm (no tolerance given), but it is only 2.2 mm in the stock KiCad footprint.

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