TPS546C23 Synchronous Buck Converters

Texas Instruments TPS546C23 Synchronous Buck Converters are PMBus 1.3 compliant, non-isolated DC-DC converters with integrated FETs. These are capable of high-frequency operation and 35A current output from a 5mm×7mm package. Two Texas Instruments TPS546C23 devices can be paralleled together to provide up to 70A load. Current sensing is realized by sampling a small portion of the power stage current and is independent of the device temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS functions through VOUT_COMMAND, flexible converter configuration, and key parameters monitoring, including output voltage, current, and internal die temperature. Depending on system requirements, response to fault conditions can be set to either restart, latch-off, or ignore.