SLUSCC7C July 2016 – June 2018 TPS546C23
The devices are PMBus 1.3 compliant 35-A, high-performance, synchronous buck converters with two integrated N-channel NexFET™ power MOSFETs, enabling high-power density and minimal PCB area. These devices implement the industry-standard fixed switching frequency, voltage-mode control with input feed-forward topology that responds instantly to input voltage change. These devices can be synchronized to the external clock to eliminate beat noise and reduce EMI and EMC. Monotonic prebias capability eliminates concerns about damaging sensitive loads. Two devices can be paralleled together to provide up to 70-A load. Current sensing for overcurrent protection, current reporting and current sharing between two devices are implemented by sampling a small portion of the power stage current which provides accurate information independent on the device temperature. The integrated PMBus interface capability provides precise current, voltage, and internal die-temperature monitoring, as well as many user-programmable configuration options including Adaptive Voltage Scaling (AVS) function through standard VOUT_COMMAND on the PMBus.