# How can sequencing circuits be implemented, and where are they commonly used?

**URL:** <https://forum.digikey.com/t/how-can-sequencing-circuits-be-implemented-and-where-are-they-commonly-used/72460>\
**Category:** Integrated Circuits (ICs)\
**Tags:** analog-devices-inc.maxim-integrated, tech-tips, power-management-pmic\
**Created:** [October 6, 2026, 12:51am UTC](https://forum.digikey.com/t/how-can-sequencing-circuits-be-implemented-and-where-are-they-commonly-used/72460 "2026-10-06T00:51:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![aswin\_babu](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@aswin\_babu](https://forum.digikey.com/u/aswin_babu)\
**Post date:** [October 6, 2026, 12:51am UTC](https://forum.digikey.com/t/how-can-sequencing-circuits-be-implemented-and-where-are-they-commonly-used/72460/1 "2026-10-06T00:51:22Z")

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Sequencing circuits can be implemented using several approaches, including cascading voltage converters through their enable pins, utilizing a microcontroller, employing a small FPGA, or using a dedicated sequencer IC.

Power sequencers are commonly used in systems containing FPGAs, GPUs, CPUs, DSPs, and SoCs, where controlled power-up and power-down sequences are required. For applications requiring multiple power supply rails, the [ADM6840](https://www.digikey.in/en/products/base-product/analog-devices-inc-maxim-integrated/175/ADM6840/744858) offers a simple sequencing and supervision solution that supports up to eight voltages without the need for software development or programming.

 ![ADM6840 power sequencing ic](https://global.discourse-cdn.com/digikey/original/3X/7/8/782f35384e2e9c4898babbd3a2082021a6c00673.png)

Figure1: The ADM6840 sequencer (credits: [Analog Devices](https://www.analog.com/en/resources/technical-articles/simple-sequencing-circuit.html)).

> Voltage and Temperature range of The ADM6840 sequencer is as follows.
> 
> - Temperature range: between –40°C and +125°C.
> 
> - Voltage range is: between 2.7 V and 15 V.

**Further Read**

- [How crucial is power sequencing, and what are the different phases of it?](https://forum.digikey.com/t/how-crucial-is-power-sequencing-and-what-are-the-different-phases-of-it/72459)
- [Reliable Power Up and Power Down Sequence](https://forum.digikey.com/t/reliable-power-up-and-power-down-sequence/10693)