LTC2975 4-Channel PMBus™ Power System Managers

Analog Devices Inc. LTC2975 4-Channel PMBus™ Power System Managers (PSMs) are designed to sequence, trim (servo), margin, supervise, manage faults, provide telemetry, and create fault logs. These digital PSMs with a PMBus-compliant command set supports power supply sequencing, precision point-of-load voltage adjustment, and margining. The programmable fault responses can disable the power supplies with an optional retry after a fault is detected. The faults that disable the power supplies can automatically trigger black box EEPROM storage of fault status and associated telemetry. The LTC2975 PSMs feature an internal 16-bit Analog-to-Digital Converter (ADC) that monitors four output voltages, four output currents, four external temperatures, input voltage, input current, and die-temperature. Typical applications include computers, network servers, industrial test/measurement, video/medical imaging, and high-reliability systems.