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TPS53647

ACTIVE

4-Phase, D-CAP+TM Step-Down Buck Controller with NVM and PMBus Interface for ASIC

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Data sheet

TPS53647

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 4.5 Vin (max) (V) 17 Iout (max) (A) 240 Operating temperature range (°C) -40 to 125 Control mode D-CAP+ Rating Catalog Vout (min) (V) 0.5 Vout (max) (V) 2.5 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Output discharge, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining Iq (typ) (µA) 8000 Duty cycle (max) (%) 50 Number of phases 4
Vin (min) (V) 4.5 Vin (max) (V) 17 Iout (max) (A) 240 Operating temperature range (°C) -40 to 125 Control mode D-CAP+ Rating Catalog Vout (min) (V) 0.5 Vout (max) (V) 2.5 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Output discharge, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining Iq (typ) (µA) 8000 Duty cycle (max) (%) 50 Number of phases 4
WQFN (RTA) 40 36 mm² 6 x 6
  • 8-bit Selectable BOOT Voltage via Pinstrap or NVM: 0.5 V to 2.5 V (down to 5-mV Step)
  • 1-, 2-, 3-, or 4- Phase Operation
  • PMBus System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
  • 1.8-V and 3.3-V PMBus Bias Compatible
  • Fault Reporting: Output Voltage, Output Current, and Temperature
  • Configurable with Non-Volatile Memory (NVM) or Resistor Pinstrap
  • 16 Levels of Programmable OCP with Pinstrap or NVM
  • Fast Transient with DCAP+Control
  • Optimized Efficiency at Light and Heavy Loads
  • Support Pre-Bias Startup
  • Phase Current Imbalance Detection and Reporting
  • 8 Independent Levels of Overshoot Reduction (OSR) and Undershoot Reduction (USR)
  • Driverless Configuration for Efficient High-Frequency Switching
  • Fully Compatible with CSD95372BQ5MC NexFET Power Stage
  • Accurate, Adjustable Voltage Positioning
  • 300-kHz to 1-MHz Frequency Selections with Closed-loop Frequency Control
  • Patented AutoBalance Phase Balancing
  • Uses TI’s Fusion Digital Power Designer GUI
  • Dynamic Phase Shedding with Programmable Current Threshold
  • Conversion Voltage Range: 4.5 V to 17 V
  • Small, 6 mm × 6 mm, 40-Pin, QFN, PowerPAD Package
  • 8-bit Selectable BOOT Voltage via Pinstrap or NVM: 0.5 V to 2.5 V (down to 5-mV Step)
  • 1-, 2-, 3-, or 4- Phase Operation
  • PMBus System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
  • 1.8-V and 3.3-V PMBus Bias Compatible
  • Fault Reporting: Output Voltage, Output Current, and Temperature
  • Configurable with Non-Volatile Memory (NVM) or Resistor Pinstrap
  • 16 Levels of Programmable OCP with Pinstrap or NVM
  • Fast Transient with DCAP+Control
  • Optimized Efficiency at Light and Heavy Loads
  • Support Pre-Bias Startup
  • Phase Current Imbalance Detection and Reporting
  • 8 Independent Levels of Overshoot Reduction (OSR) and Undershoot Reduction (USR)
  • Driverless Configuration for Efficient High-Frequency Switching
  • Fully Compatible with CSD95372BQ5MC NexFET Power Stage
  • Accurate, Adjustable Voltage Positioning
  • 300-kHz to 1-MHz Frequency Selections with Closed-loop Frequency Control
  • Patented AutoBalance Phase Balancing
  • Uses TI’s Fusion Digital Power Designer GUI
  • Dynamic Phase Shedding with Programmable Current Threshold
  • Conversion Voltage Range: 4.5 V to 17 V
  • Small, 6 mm × 6 mm, 40-Pin, QFN, PowerPAD Package

The TPS53647 is a high-current, multi-phase, step-down controller.The device offers built-in non volatile memory (NVM) and PMBus interface. It is compatible with theNexFET power stages (CSD95372BQ5MC). The TPS53647 provides 8-bitBOOT voltage selection covering output voltage from 0.5 V to 2.5 V, with steps as small as 5 mV,which is ideal for high current application with accurate output voltage setting. Advanced controlfeatures such as D-CAP+ architecture with undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance, and high efficiency. TheTPS53647 also provides novel phase interleaving strategy and dynamic phaseshedding for efficiency improvement at light loads. In addition, the TPS53647supports the PMBus communication interface with systems for telemetry of voltage, current, power,temperature, and fault conditions. Some of the configurations can be programmed by pinstrap orPMBus and stored in non-volatile memory to minimize the external component count.

The TPS53647 is offered in a space saving, thermally enhanced 40-pinQFN package and is rated to operate from –40°C to 125°C.

For all available packages, see the orderable addendum at the

The TPS53647 is a high-current, multi-phase, step-down controller.The device offers built-in non volatile memory (NVM) and PMBus interface. It is compatible with theNexFET power stages (CSD95372BQ5MC). The TPS53647 provides 8-bitBOOT voltage selection covering output voltage from 0.5 V to 2.5 V, with steps as small as 5 mV,which is ideal for high current application with accurate output voltage setting. Advanced controlfeatures such as D-CAP+ architecture with undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance, and high efficiency. TheTPS53647 also provides novel phase interleaving strategy and dynamic phaseshedding for efficiency improvement at light loads. In addition, the TPS53647supports the PMBus communication interface with systems for telemetry of voltage, current, power,temperature, and fault conditions. Some of the configurations can be programmed by pinstrap orPMBus and stored in non-volatile memory to minimize the external component count.

The TPS53647 is offered in a space saving, thermally enhanced 40-pinQFN package and is rated to operate from –40°C to 125°C.

For all available packages, see the orderable addendum at the
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Technical documentation

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Type Title Date
* Data sheet TPS53647 4-Phase, D-CAP+, Step-Down, Buck Controller with NVM and PMBus™ Interface for ASIC Power and High-Current Point-of-Load datasheet (Rev. B) PDF | HTML 10 Feb 2017
Application note Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) 07 Apr 2021
Application note Optimizing High Side FET Voltage Ringing of Multiphase Voltage Regulators Part 2 19 Jul 2019
Application note Optimizing High Side FET Voltage Ringing of Multiphase Voltage Regulators Part 1 11 Jul 2019
Technical article Minimize the impact of the MLCC shortage using D-CAP+™ control mode PDF | HTML 05 Apr 2019
Application note D-CAP+TM Control for Multiphase Step-Down Voltage Regulators for Powering Microp 13 Jan 2019
Selection guide DC/DC Buck Controller Solutions Selection Guide 06 Feb 2018
Technical article How to select the right power solution for your FPGA or PMIC PDF | HTML 10 Jan 2018
Technical article The D-CAP+™ Modulator: Evaluating the small-signal robustness PDF | HTML 15 Nov 2017
Technical article Simplifying loop compensation and poles and zeros calculations PDF | HTML 18 Mar 2016
Technical article Don’t say goodbye to your power supply PDF | HTML 07 Mar 2016
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 22 Feb 2016
Technical article How to balance current using multiphase converters PDF | HTML 18 Sep 2015
Technical article Select the correct PMBus POL solution for your application PDF | HTML 03 Aug 2015
EVM User's guide Using the PWR710 EVM:4-Phase D-CAP+ Step-Down DC-DC Analog with PMBus Interface (Rev. A) 23 Jun 2015

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