TPS40428RHAT

TPS40425/28 PMBus Driverless Controllers

Texas Instruments TPS40425/28 PMBus™ Synchronous Buck Driverless Controllers are a PMBus, synchronous buck, driverless controller that operates in non-smart power mode or smart power mode depending on factory settings. They can be configured for use as dual-output or 2-phase. They are also stackable up to 4 phases to support load current as high as 120A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance. The wide input voltage range can support 5V and 12V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs. Using the PMBus standard, the TPS40425/28 devices can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.