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LM3881 Datasheet Simple Power Sequencer

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3881 SNVS555D – JANUARY 2008 – REVISED DECEMBER 2014 LM3881 Simple Power Sequencer With Adjustable Timing.

General Description

The LM3881 Simple Power Sequencer offers the easiest method to control power up and power down of multiple power supplies (switching or linear regulators).

By staggering the start-up sequence, it is possible to avoid latch conditions or large inrush currents that can affect the reliability of the system.

Available in VSSOP-8 package, the Simple Sequencer contains a precision enable pin and three open-drain output flags.

Key Features

  • 1 Easiest Method to Sequence Rails.
  • Power-Up and Power-Down Control.
  • Tiny Footprint.
  • Low Quiescent Current of 80 µA.
  • Input Voltage Range of 2.7 V to 5.5 V.
  • Output Invert Feature.
  • Timing Controlled by Small Value External Capacitor 2.

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