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TPS544C26

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4-V to 16-V, 35-A SVID and I²C synchronous step-down converter

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Data sheet

TPS544C26

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 35 Vin (min) (V) 4 Vin (max) (V) 16 Topology Buck Type Converter Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1200 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, I2C, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, SVID, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, VID Interface Control mode D-CAP+ Vout (min) (V) 0.5 Vout (max) (V) 3.04 Rating Catalog Operating temperature range (°C) -40 to 125
Iout (max) (A) 35 Vin (min) (V) 4 Vin (max) (V) 16 Topology Buck Type Converter Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1200 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, I2C, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, SVID, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, VID Interface Control mode D-CAP+ Vout (min) (V) 0.5 Vout (max) (V) 3.04 Rating Catalog Operating temperature range (°C) -40 to 125
WQFN-FCRLF (RXX) 37 30 mm² 6 x 5
  • Single chip power supply for SVID rails
  • Intel VR13 SVID compliant

  • I2C interface with NVM for configuration, telemetry (V/I/T) and fault reporting

  • Input power monitoring for DDR5 memory RAPL
  • Integrated 4.0-mΩ and 1.0-mΩ MOSFETs for 35-A continuous current operation
  • Supports external 5-V bias improving efficiency and enabling 2.7-V minimum input voltage
  • VOUT programmable from 0.25 V to 3.04 V
  • Precision voltage reference and differential remote sense for high output accuracy
    • ±0.5% VOUT tolerance from 0°C to 85°C TJ
    • ±1% VOUT tolerance from –40°C to 125°C TJ
  • D-CAP+™ control topology with fast transient response, supporting all ceramic output capacitors
  • Programmable internal loop compensation including droop
  • Selectable cycle-by-cycle valley current limit
  • Selectable operation frequency 0.6 MHz to 1.2 MHz with DCM or FCCM operation
  • Safe start-up into pre-biased outputs
  • Programmable soft-start time from 1 ms to 16 ms
  • Programmable soft-stop time from 0.5 ms to 4 ms
  • Open-drain power-good output (VRRDY) and Catastrophic fault indicator (CAT_FAULT#)
  • Programmable overcurrent, overvoltage, undervoltage, overtemperature protections
  • 5 mm × 6 mm, 37-pin WQFN-FCRLF package
  • TPS548C26 non-SVID/I2C analog converter in the same package available soon
  • Single chip power supply for SVID rails
  • Intel VR13 SVID compliant

  • I2C interface with NVM for configuration, telemetry (V/I/T) and fault reporting

  • Input power monitoring for DDR5 memory RAPL
  • Integrated 4.0-mΩ and 1.0-mΩ MOSFETs for 35-A continuous current operation
  • Supports external 5-V bias improving efficiency and enabling 2.7-V minimum input voltage
  • VOUT programmable from 0.25 V to 3.04 V
  • Precision voltage reference and differential remote sense for high output accuracy
    • ±0.5% VOUT tolerance from 0°C to 85°C TJ
    • ±1% VOUT tolerance from –40°C to 125°C TJ
  • D-CAP+™ control topology with fast transient response, supporting all ceramic output capacitors
  • Programmable internal loop compensation including droop
  • Selectable cycle-by-cycle valley current limit
  • Selectable operation frequency 0.6 MHz to 1.2 MHz with DCM or FCCM operation
  • Safe start-up into pre-biased outputs
  • Programmable soft-start time from 1 ms to 16 ms
  • Programmable soft-stop time from 0.5 ms to 4 ms
  • Open-drain power-good output (VRRDY) and Catastrophic fault indicator (CAT_FAULT#)
  • Programmable overcurrent, overvoltage, undervoltage, overtemperature protections
  • 5 mm × 6 mm, 37-pin WQFN-FCRLF package
  • TPS548C26 non-SVID/I2C analog converter in the same package available soon

The TPS544C26 device is a highly integrated buck converter with D-CAP+ control topology for the fast transient response. All programmable parameters can be configured by the I2C interface and stored in NVM as the new default values to minimize the external component count. These features make the device well-suited for space-constrained applications.

The TPS544C26 device is designed to work with Intel CPUs and fits well for single-phase, low-to-mid current SVID rails in Intel’s server and SoC platforms.

Fault management and status reports for the Overcurrent limit, VOUT OVF/UVF, and OTF are provided on the device. The TPS544C26 device provides a full set of telemetry, including VOUT, IOUT, and IC temperature. Additionally, input power monitoring through an external sensing resistor is provided for board-level power management.

The TPS544C26 device is a lead-free device and is RoHS compliant without exemption.

The TPS544C26 device is a highly integrated buck converter with D-CAP+ control topology for the fast transient response. All programmable parameters can be configured by the I2C interface and stored in NVM as the new default values to minimize the external component count. These features make the device well-suited for space-constrained applications.

The TPS544C26 device is designed to work with Intel CPUs and fits well for single-phase, low-to-mid current SVID rails in Intel’s server and SoC platforms.

Fault management and status reports for the Overcurrent limit, VOUT OVF/UVF, and OTF are provided on the device. The TPS544C26 device provides a full set of telemetry, including VOUT, IOUT, and IC temperature. Additionally, input power monitoring through an external sensing resistor is provided for board-level power management.

The TPS544C26 device is a lead-free device and is RoHS compliant without exemption.
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Technical documentation

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* Data sheet TPS544C26 4-V to 16-V Input, 35-A Synchronous Buck Converter With SVID And I2C Interfaces datasheet PDF | HTML 15 Sep 2022
Application note Point-of-Load Designs in Data Center Apps for Intel Xeon Sapphire Rapids Scalabl (Rev. B) PDF | HTML 29 Aug 2023
EVM User's guide TPS544C26EVM 4-V to 16-V, 35-A Step-Down Converter Evaluation Module PDF | HTML 25 Aug 2022
Certificate TPS544C26EVM EU RoHS Declaration of Conformity (DoC) 05 Aug 2022

Design & development

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

Evaluation board

TPS544C26EVM — TPS544C26 4-V to16-V, 35-A step-down converter evaluation module

The TPS544C26EVM is an evaluation module for the TPS544C26 DC/DC synchronous buck converter with a digital I²C and a serial voltage identification (SVID) interface to accommodate Intel processors. The evaluation module accepts an 8-V to 16-V input and can deliver an output current up to 35-A. The (...)
User guide: PDF | HTML
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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 model

TPS544C26 SIMPLIS Transient and Average Model

SLVMDX8.ZIP (749 KB) - SIMPLIS Model
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Calculation tool

SLVRBM2 — TPS544C26 Calculator Tool and Schematic Checklist

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS544C26 — 4-V to 16-V, 35-A SVID and I²C synchronous step-down converter
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WQFN-FCRLF (RXX) 37 View options
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