The TPS40425RHAT is a PMBus synchronous Driverless Buck Controller operates in non-smart power mode in factory default setting and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is 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 5 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 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay. In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual.
- Non-smart power mode in factory default
- Dual or multi-phase synchronous buck controller
- Individual high-speed AVS interface
- Fast transient response
- Stackable up to four phases
- Accurate current sharing
- PMBus capability
- Margining up or down with 2mV step
- Programmable fault limit and response
- ±0.8% VOUT
- Accuracy current monitoring
- Programmable UVLO on/off thresholds
- Programmable soft-start time, turn-on delay and turn-off delay
- On-chip non-volatile memory (NVM) to store custom configurations
- Inductor DCR current sensing
- Supports pre-biased output
- Differential remote sensing
- Synchronization to an external clock
- OC/OV/UV/OT Fault protection
- Support for TI power stage
电源管理, 通信与网络, 无线
(EN)
