TPS53679RSBT Description

The TPS53679RSBT is a fully VR13 SVID-compliant step-down controller with dual channels, built-in nonvolatile memory (NVM), and PMBus? interface, and is fully compatible with TI NexFET ?power stage. Advanced control features such as D-CAP+? architecture with undershoot reduction (USR) provide a fast transient response, low output capacitance, and good current sharing.

TPS53679RSBT Features

• Intel VR13 Serial VID (SVID) Compliant

• Full VR13 Server Feature Set Including Digital Input Power Monitor

• Programmable Loop Compensations

• Configurable with Non-Volatile Memory (NVM) for Low External Component Counts

• Individual Phase Current Calibrations and Reports

• Dynamic Phase Shedding with Programmable Current Threshold for Optimizing Efficiency at Light and Heavy Loads

• Fast Phase-Adding for Undershoot Reduction (USR)

• Backward VR12.0 and VR12.5 Compatible

•  8-Bit DAC with Selectable 5 mV or 10 mV

• Resolution and Output Ranges from 0.25 V to 1.52 V or 0.5 to 2.8125 V for Dual Channels

• Driverless Configuration for Efficient HighFrequency Switching

• Fully Compatible with TI NextFET? Power Stage for High-Density Solutions

• Accurate, Adjustable Voltage Positioning

• Patented AutoBalance? Phase Balancing

• Selectable, 16-level Per-Phase Current Limit

• PMBus? System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions

• Dynamic Output Voltage Transitions with Programmable Slew Rates via SVID or PMBus Interface Conversion Voltage Range: 4.5 V to 17 V

•  Low Quiescent Current

TPS53679RSBT Applications

• ASIC Needs Dual Power Rails 

• High-Performance Processor Power