LTC2955CDDB-1

Power Supply Controllers, Monitors Overview

The LTC2955CDDB-1 is a micro-power push-button on/off controller manufactured by Analog Devices Inc. It manages system power by generating a clean enable output from a supply monitor input and a debounced push-button input. The device features an interrupt output to notify the system of button or low-power events. It supports a wide power input range of 1.5V to 36V and includes a strong button input capable of handling ±36V voltage swings and ±25kV ESD shocks without latch-up. The part operates with a low supply current of 1.2µA to maximize battery life and provides a high-active enable output suitable for controlling system power rails.

Power Supply Controllers, Monitors Feature Summary

• Generates clean enable outputs from supply monitor and debounced push-button inputs
• Provides interrupt output to signal button presses or low-power events
• Supports wide input voltage range from 1.5V to 36V
• Features robust button input with high ESD protection capability

Power Supply Controllers, Monitors Applications

• Battery-powered systems requiring extended run time
• Embedded systems needing manual power control via push-button
• Applications requiring automatic turn-on based on supply voltage monitoring

Power Supply Controllers, Monitors Procurement Notes

Verify availability status as distribution channels may indicate limited stock or discontinuation. Confirm package type matches design requirements. Check RoHS compliance documentation. Ensure ordering suffix corresponds to correct enable polarity. Validate pinout compatibility with existing PCB layout before procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when a micro-power solution is required for managing system power states via mechanical switches. The LTC2955CDDB-1 is appropriate for designs needing automatic power-on functionality triggered by supply voltage thresholds. Consider the specific enable output polarity requirements, as this variant provides a high-active output. Evaluate the need for interrupt signaling to the host processor for event logging or state management.

Power Supply Controllers, Monitors Part Context

This component belongs to the LTC2955 family of push-button controllers designed for low-power applications. It is distinct from other variants in the series by its specific enable output configuration. The device integrates necessary filtering and logic to interface directly with power management ICs or linear regulators, simplifying system design compared to discrete solutions.

Power Supply Controllers, Monitors Replacement Considerations

Direct substitutes within the same family include the LTC2955IDDB-2, which offers an inverted enable output. Designers must verify that the alternative part's output polarity aligns with the downstream regulator's enable logic. Electrical characteristics such as supply current and input voltage ranges should be compared to ensure functional equivalence.