The LTC2978 is a power management integrated circuit designed to digitally monitor and control up to eight power supplies. It features an integrated precision reference and 15-bit ADC to deliver +0.25% absolute accuracy when measuring or adjusting supply voltages.
Key capabilities include flexible sequencing (on/off) for any number of supplies, fault supervision, and margin testing to improve manufacturing yields. The device utilizes the industry-standard PMBus command protocol to simplify firmware development and includes nonvolatile memory to record system voltage and fault information during critical failures.
The device can sequence, supervise, monitor, and trim up to eight power supplies.
The precision integrated reference and ADC deliver +0.25% absolute accuracy.