Telecom and datacom systems increasingly use high‑efficiency 48 V intermediate buses with hot‑swappable quarter‑brick DC‑DC converters. New industry standards now require PMBus® communication and stronger protection features, driving a shift toward fully digital, intelligently managed power solutions.
The LTC2971 is ideally suited to meet these requirements. It offers dual-channel rail management from –60 V to +60 V, implements programmable fault responses, and logs critical events to on-board EEPROM.
Its native PMBus interface enables seamless integration with standard system monitoring architectures, while its digital power system management (DPSM) functions—sequencing, margin testing, fault detection, and telemetry—are now considered essential in complex power platforms. Internal EEPROM and an independent watchdog further support autonomous operation with minimal host intervention, improving overall system reliability.
By integrating the power system manager (PSM) on the power board, designers gain centralized, high accuracy digital telemetry of all rail voltages, currents, and board temperatures via PMBus offering far greater precision and flexibility than legacy analog monitoring solutions, which often struggle to meet strict data center performance specifications.
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 161-LTC2971HY#PBF-ND | LTC2971HY#PBF |
| 161-LTC2971IY#PBF-ND | LTC2971IY#PBF |
| 161-LTC2971CY#PBF-ND | LTC2971CY#PBF |
| 161-LTC2971CY-2#PBF-ND | LTC2971CY-2#PBF |
| 161-LTC2971CY-3#PBF-ND | LTC2971CY-3#PBF |
| 161-LTC2971CY-1#PBF-ND | LTC2971CY-1#PBF |
| 505-LTC2971IY-1#PBF-ND | LTC2971IY-1#PBF |
| 505-LTC2971IY-2#PBF-ND | LTC2971IY-2#PBF |
| 161-LTC2971IY-3#PBF-ND | LTC2971IY-3#PBF |
| 505-LTC2971HY-1#PBF-ND | LTC2971HY-1#PBF |
| 161-LTC2971HY-2#PBF-ND | LTC2971HY-2#PBF |
| 161-LTC2971HY-3#PBF-ND | LTC2971HY-3#PBF |
Related article:
Why is a digital power system manager (PSM) needed in modern data center?