1 Features

• 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

2 Applications

• Server and cloud-computing POLs

• Hardware accelerator

• Network interface card

3 Description

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.