LTC2974CUP

Power Supply Controllers, Monitors Overview

The LTC2974CUP is a quad digital power supply manager manufactured by Analog Devices Inc., designed for comprehensive power system management. It integrates an EEPROM for non-volatile configuration storage and supports I2C, SMBus, and PMBus communication protocols. The device provides four independent channels for monitoring and controlling power supplies, featuring programmable thresholds for voltage, current, temperature, and fault conditions. It operates within a supply voltage range of 4.5V to 15V and is housed in a 64-pin QFN package.

Power Supply Controllers, Monitors Feature Summary

• Integrates on-chip EEPROM for persistent storage of user-defined power system configurations and operational parameters.
• Supports standard industry communication interfaces including I2C, SMBus, and PMBus for flexible host integration.
• Provides four independent monitoring channels with programmable thresholds for voltage, current, and temperature.
• Enables detailed power system analysis and control through software tools such as LTpowerPlay.

Power Supply Controllers, Monitors Applications

• FPGA power supply sequencing and monitoring
• Server and data center power distribution units
• Telecommunications infrastructure equipment
• Industrial automation control systems

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix (CUP) against the manufacturer's official datasheet to confirm the commercial temperature grade and lead-free status. Ensure compatibility with the target PCB footprint and pinout. Confirm that the required EEPROM programming tools and software licenses are available for the intended application development.

Power Supply Controllers, Monitors Selection Notes

Select this component when multi-channel digital power management with persistent configuration is required. It is suitable for applications needing precise monitoring of multiple rails via standard serial interfaces. Consider the 64-pin QFN package size and thermal requirements during layout. Evaluate if the integrated EEPROM meets the necessary data retention and endurance specifications for the product lifecycle.

Power Supply Controllers, Monitors Part Context

The LTC2974 belongs to Analog Devices' family of digital power system managers, which replace traditional analog sequencers and supervisors. These devices offer enhanced flexibility and diagnostic capabilities compared to fixed-function analog ICs. The CUP variant specifically denotes the commercial temperature range version within the 64-QFN package lineup, aligning with other models like the LTC2975 and LTC2977.

Power Supply Controllers, Monitors Replacement Considerations

Direct functional substitutes within the same package include the LTC2975CUP and LTC2977CUP. Verify pin-to-pin compatibility and register-level differences before substitution. Alternative packages or families may require schematic and layout modifications.