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TPS53679

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Dual-Channel 6+1/5+2 VR13 D-CAP+™ Step-Down Multiphase Controller With NVM and PMBus

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Data sheet

TPS53679

ACTIVE
Data sheet Order now

Product details

Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.25 Vout (Max) (V) 2.8125 Iout (Max) (A) 240 Iq (Typ) (uA) 13000 Switching frequency (Min) (kHz) 300 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Dynamic Voltage Scaling, Enable, I2C, Light Load Efficiency, Multiple Outputs, PMBus, Phase Interleaving, Power Good, Pre-Bias Start-Up, Remote Sense, SVID, Synchronous Rectification, UVLO Adjustable, Voltage Margining Operating temperature range (C) -40 to 125 Regulated outputs (#) 2 Number of phases 6+1, 5+2, 7 Rating Catalog
Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.25 Vout (Max) (V) 2.8125 Iout (Max) (A) 240 Iq (Typ) (uA) 13000 Switching frequency (Min) (kHz) 300 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Dynamic Voltage Scaling, Enable, I2C, Light Load Efficiency, Multiple Outputs, PMBus, Phase Interleaving, Power Good, Pre-Bias Start-Up, Remote Sense, SVID, Synchronous Rectification, UVLO Adjustable, Voltage Margining Operating temperature range (C) -40 to 125 Regulated outputs (#) 2 Number of phases 6+1, 5+2, 7 Rating Catalog
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WQFN (RSB) 40 25 mm² 5 x 5
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  • 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 High-Frequency 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
  • 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 High-Frequency 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
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The TPS53679 is a fully VR13 SVID compliant step-down controller with dual channels, built-in non-volatile 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 fast transient response, low output capacitance, and good current sharing. The device also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at different loads. Adjustable control of VCORE slew rate and voltage positioning round out the Intel® VR13™ features. In addition, the device supports the PMBus communication interface for reporting the telemetry of voltage, current, power, temperature, and fault conditions to the systems. All programmable parameters can be configured by the PMBus interface and can be stored in NVM as the new default values to minimize the external component count.

The TPS53679 device if offered in a thermally enhanced -pin QFN packaged and is rated to operate from –40°C to 125°C.

The TPS53679 is a fully VR13 SVID compliant step-down controller with dual channels, built-in non-volatile 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 fast transient response, low output capacitance, and good current sharing. The device also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at different loads. Adjustable control of VCORE slew rate and voltage positioning round out the Intel® VR13™ features. In addition, the device supports the PMBus communication interface for reporting the telemetry of voltage, current, power, temperature, and fault conditions to the systems. All programmable parameters can be configured by the PMBus interface and can be stored in NVM as the new default values to minimize the external component count.

The TPS53679 device if offered in a thermally enhanced -pin QFN packaged and is rated to operate from –40°C to 125°C.

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More Information

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Technical documentation

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Type Title Date
* Data sheet TPS53679 Dual-Channel (6-Phase +1-Phase) or (5-Phase + 2-Phase) D-CAP+™ Step-Down Multiphase Controller with NVM and PMBus™ for VR13 Server VCORE datasheet 07 Aug 2017
Application note Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) 07 Apr 2021
Application note D-CAP+TM Control for Multiphase Step-Down Voltage Regulators for Powering Microp 13 Jan 2019
Application note NVM Programming for VR13 Power Controllers 04 May 2018
Technical article The D-CAP+™ Modulator: Evaluating the small-signal robustness 15 Nov 2017
Technical article An introduction to the D-CAP+™ modulator and its real world performance 08 Nov 2017
User guide Using the Fusion Digital Power Designer for TPS536xx VR13 Multiphase Solutions 16 Dec 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Application software & framework

FUSION_DIGITAL_POWER_DESIGNER — Digital Power Software

Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

TIDA-01367 — Cavium CN99xx Thunder X2 CPU PMBus VDD/VDD SRAM core power design

The TIDA-01367 reference design uses the TPS53679 multiphase controller and CSD95490Q5MC Smart Power Stages to implement a high-performance design suitable for powering Cavium ThunderX2® ARM Processors.

The dual outputs of the controller target a 240-A, 0.8-V core rail with a six-phase design and a (...)

document-pdfAcrobat Schematic
Reference designs

PMP20489 — High Density 12Vin 0.8V 200A & 3.3V 75A POL Reference Design

The TPS53679-based reference design provides a single IC for control of two multi-phase outputs with up to 6 phases on main output and up to 2 phases on channel 2; up to 7 phases in all.  Multi-phase also allows output ripple cancellation and effective higher bandwidth control for a (...)
document-pdfAcrobat Schematic
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WQFN (RSB) 40 View options

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