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

document-pdfAcrobat TPS544C26 4-V to 16-V Input, 35-A Synchronous Buck Converter With SVID And I2C Interfaces datasheet PDF | HTML

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TPS544E27

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4V to 18V input, 40A, PMBus and SVID synchronous step-down converter Backwards compatible

TPS544C26

ACTIVE

Data sheet

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Product details

Rating

Catalog

Topology

Buck

Iout (max) (A)

35

Vin (max) (V)

16

Vin (min) (V)

4

Vout (max) (V)

3.04

Vout (min) (V)

0.5

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, I2C, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, SVID, Soft Start Adjustable, Synchronous rectification, Telemetry, UVLO adjustable, VID Interface

Control mode

D-CAP+

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

76

Rating

Catalog

Topology

Buck

Iout (max) (A)

35

Vin (max) (V)

16

Vin (min) (V)

4

Vout (max) (V)

3.04

Vout (min) (V)

0.5

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, I2C, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, SVID, Soft Start Adjustable, Synchronous rectification, Telemetry, UVLO adjustable, VID Interface

Control mode

D-CAP+

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

76

WQFN-FCRLF (RXX)

37

30 mm² (6 mm × 5 mm)

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
V_OUT programmable from 0.25 V to 3.04 V
Precision voltage reference and differential remote sense for high output accuracy
- ±0.5% V_OUT tolerance from 0°C to 85°C T_J
- ±1% V_OUT tolerance from –40°C to 125°C T_J
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
V_OUT programmable from 0.25 V to 3.04 V
Precision voltage reference and differential remote sense for high output accuracy
- ±0.5% V_OUT tolerance from 0°C to 85°C T_J
- ±1% V_OUT tolerance from –40°C to 125°C T_J
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, V_OUT OVF/UVF, and OTF are provided on the device. The TPS544C26 device provides a full set of telemetry, including V_OUT, I_OUT, 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, V_OUT OVF/UVF, and OTF are provided on the device. The TPS544C26 device provides a full set of telemetry, including V_OUT, I_OUT, 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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Top documentation	Type	Title	Format options	Date
*	Data sheet	TPS544C26 4-V to 16-V Input, 35-A Synchronous Buck Converter With SVID And I2C Interfaces datasheet	PDF \| HTML	Sep 15, 2022
	Application brief	Using Improved TPS544E27 in Existing TPS544C26 Applications.	PDF \| HTML	Dec 17, 2025
	Application note	Point-of-Load Designs in Data Center Applications for Intel Xeon Sapphire Rapids Scalable Processors (Rev. C)	PDF \| HTML	Oct 9, 2024
	Application brief	Solving Power Design Challenges in Enterprise SSD Applications	PDF \| HTML	Sep 23, 2024
	Certificate	TPS544C26EVM EU RoHS Declaration of Conformity (DoC)		Aug 5, 2022

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.

Supported products & hardware

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Simulation model