SLVSDF3F MARCH 2017 – JANUARY 2019 TPSM846C23
The TPSM846C23 device is a PMBus-1.3-compliant, 35-A, high-performance, synchronous buck-power module, enabling high-power density and minimal PCB area. This device implement the industry-standard fixed switching frequency, voltage-mode control with input feed-forward topology that responds instantly to input voltage change. This device 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 TPSM846C23 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 of the device temperature. The integrated PMBus interface capability provides precise current monitoring, voltage monitoring, 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.