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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

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

TPS53679

ACTIVE
Data sheet Order now

Product details

Parameters

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 open-in-new Find other Buck controllers (external switch)

Package | Pins | Size

WQFN (RSB) 40 25 mm² 5 x 5 open-in-new Find other Buck controllers (external switch)

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 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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Description

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
* Datasheet 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 Aug. 07, 2017
Application note Multiphase Buck Design from Start to Finish, Part 1 (Rev. A) May 24, 2019
Application note D-CAP+TM Control for Multiphase Step-Down Voltage Regulators for Powering Microp Jan. 13, 2019
Application note NVM Programming for VR13 Power Controllers May 04, 2018
Technical articles The D-CAP+™ Modulator: Evaluating the small-signal robustness Nov. 15, 2017
Technical articles An introduction to the D-CAP+™ modulator and its real world performance Nov. 08, 2017
User guide Using the Fusion Digital Power Designer for TPS536xx VR13 Multiphase Solutions Dec. 16, 2016

Design & development

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

Software development

APPLICATION SOFTWARE & FRAMEWORK Download
Digital Power Software
FUSION_DIGITAL_POWER_DESIGNER — Fusion Digital Power™  is the Graphical User Interface (GUI) 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.
Features

Some of the tasks you can perform with the GUI include:

  • Turn on or off the power supply output, either through the hardware control line or the PMBus OPERATION command
  • Monitor real-time data. Items such as input voltage, output voltage, output current, temperature, and warnings/faults are continuously (...)
View details

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details

Reference designs

REFERENCE DESIGNS Download
Cavium CN99xx Thunder X2 CPU PMBus VDD/VDD SRAM core power design
TIDA-01367 — 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-generic Schematic
REFERENCE DESIGNS Download
High Density 12Vin 0.8V 200A & 3.3V 75A POL Reference Design
PMP20489 — 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 given (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WQFN (RSB) 40 View options

Ordering & quality

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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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