Product details


VCC (Min) (V) 2.7 VCC (Max) (V) 5.5 Iq (Typ) (uA) 25 Time delay (ms) 2, 10, 16, 30, 60, 120 Number of sequenced outputs 3 Rating Catalog open-in-new Find other Sequencers

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Sequencers


  • Simple solution for sequencing three voltage rails from a single input signal
  • Easily cascade up to three devices to sequence as many as nine voltage rails
  • Powerup and powerdown control
  • Tiny 2.9-mm x 1.6-mm footprint
  • Low quiescent current: 25 µA
  • Input voltage range: 2.7 V to 5.5 V
  • Standard timing options available

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The LM3880 simple power supply sequencer offers the easiest method to control powerup sequencing and powerdown sequencing of multiple Independent voltage rails. By staggering the startup sequence, it is possible to avoid latch conditions or large in-rush currents that can affect the reliability of the system.

Available in a 6-pin SOT-23 package, the simple sequencer contains a precision enable pin and three open-drain output flags. The open-drain output flags permit that they can be pulled up to distinct voltage supplies separate from the sequencer VDD (only if they do not exceed the recommended maximum voltage of 0.3 V greater than VDD), so as to interface with ICs requiring a range of different enable signals. When the LM3880 is enabled, the three output flags sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags follow a reverse sequence during power down to avoid latch conditions.

EPROM capability allows every delay and sequence to be fully adjustable. Contact Texas Instruments to request a non-standard configuration.

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Technical documentation

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Type Title Date
* Data sheet LM3880 Simple Power Sequencer datasheet (Rev. M) Feb. 26, 2021
Application note High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision Aug. 05, 2019
Application note Creating a Sequencing Voltage Supervisor (Reset IC) Using TPS386000 and LM3880 May 14, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical article How to manage processor power during uncontrolled power off Jun. 21, 2018
Technical article FPGA power made simple: sequencing Nov. 13, 2017
Technical article Sequencing solutions: simple, reliable and cost-effective Sep. 27, 2017
Technical article Sequencing and managing multiple power rails in a system: common questions answered Feb. 01, 2017
Application note Analog Applications Journal 4Q 2014 Oct. 24, 2014
Application note Power-supply sequencing for FPGAs Oct. 24, 2014
User guide AN-1491 LM3880 Power Sequencer Demo Board (Rev. A) May 07, 2013
Application note LM1771 and LM3880 Based FPGA Power Supply Reference Design (Rev. A) May 05, 2013
Application note AN-1603 LM274X Reference Designs (Rev. C) May 01, 2013
Application note Power Supply Design Considerations for Modern FPGAs (Power Designer 121) Feb. 02, 2010

Design & development

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Hardware development

Power Sequencer
document-generic User guide

The LM3880 evaluation board has been designed to connect directly to the power supplies of an existing system to enable sequencing. Upon enabling the device, the three open drain output flags will rise in sequential order, 1-2-3. Once the part is disabled, the shutdown sequence will occur in reverse (...)

  • Power up and power down control
  • Input voltage range of 2.7 V to 5.5 V
  • Small footprint SOT23-6
  • Low quiescent current of 20 mA
  • Standard timing options available

Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
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Reference designs

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CAD/CAE symbols

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SOT-23 (DBV) 6 View options

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