LTC2911CDDB-1

Supervisors Overview

The LTC2911CDDB-1 is a three-channel voltage supervisor integrated circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 1.7V to 5.5V and features a low operating supply current of 10 µA. The device provides independent monitoring for three distinct voltage rails, with fixed thresholds at 3.086V and 4.675V, plus one adjustable channel. It utilizes an 8-pin DFN (3x2 mm) surface-mount package and supports a reset timeout that is selectable via external components.

Supervisors Feature Summary

• Provides simultaneous supervision of three independent voltage channels with dedicated threshold detection
• Features a configurable reset output with selectable timeout duration to accommodate various system startup requirements
• Operates with ultra-low quiescent current to minimize power consumption in battery-powered applications

Supervisors Applications

• Portable electronic devices requiring multi-rail power management
• Embedded systems with multiple voltage domains needing synchronized reset sequencing
• Industrial control units utilizing low-power microcontrollers

Supervisors Procurement Notes

Verify the specific suffix and tape/reel configuration against the manufacturer's latest datasheet before ordering. Confirm availability status as distribution channels may report limited stock or discontinuation notices. Ensure the selected package variant matches the PCB footprint design specifications exactly.

Supervisors Selection Notes

Select this component when a system requires monitoring of three distinct voltage levels with minimal active power draw. The adjustable threshold channel offers flexibility for custom voltage references. Ensure the required reset delay aligns with the available selection options provided by the external capacitor network.

Supervisors Part Context

This part belongs to the LTC2911 series of supervisory circuits designed for portable and battery-operated equipment. It shares the core architecture with other variants in the family but differs in package type and specific threshold configurations. The DFN package allows for compact board layouts in space-constrained designs.

Supervisors Replacement Considerations

Direct replacements include other LTC2911 variants such as LTC2911ITS8-1#TRMPBF for TSOT-23-8 packaging. Verify pin compatibility and threshold values when substituting with different suffixes from the same product line.