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TPS544C27
  • TPS544C27

TPS544C27

PREVIEW

4V to 18V input, 35A, PMBus and SVID synchronous step-down converter

Texas Instruments TPS544C27 Product Info

1 April 2026 5

Parameters

Rating

Catalog

Topology

Buck

Iout (max) (A)

35

Vin (max) (V)

18

Vin (min) (V)

2.7

Vout (max) (V)

5.5

Vout (min) (V)

0.25

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Extended security, Forced PWM, Light load efficiency, Over Current Protection, PMBus, Power good, Pre-Bias Start-Up, SVID, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, VID Interface, Voltage Margining

Control mode

D-CAP+

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.009

Duty cycle (max) (%)

80

Package

WQFN-FCRLF (VBD)-33-20 mm² 5 x 4

Features

  • Single chip power supply for SVID rails
  • Intel VR14 and VR13 compliant
  • VR14.Cloud compliant with telemetry level 2 and security level 2
  • PMBus 1.5 interface with NVM for configuration, telemetry (V/I/T) and fault reporting
  • Input voltage: 4V to 18V
  • Output voltage: 0.25V to 5.5V
  • Supports external 5V bias improving efficiency and enabling 2.7V minimum input voltage
  • Output current: 35A continuous and 40A peak
  • Cycle-by-cycle valley IOUT OCF limit programmable up to 40A
  • Input power monitoring (PIN sense)
  • Programmable DCM or FCCM operation
  • Switching frequency: 400kHz to 2MHz
  • Programmable internal loop compensation including droop (DC Load Line)
  • Programmable soft-start time from 0.5ms to 16ms
  • Programmable soft-stop time from 0.5ms to 4ms
  • Programmable output voltage slew rate: 0.625mV/µs to 25mV/µs
  • Programmable VIN UVLO, VOUT OVF/UVF, and OTF
  • Safe start-up into prebiased outputs
  • Precision voltage reference and differential remote sense for high output accuracy
    • ±0.5% tolerance from 0°C to 85°C junction
    • ±1% tolerance from –40°C to 125°C junction
  • Analog output current output pin (IMON)
  • D-CAP+™ control topology with fast transient response
  • Open-drain power-good output (VRRDY)
  • Single chip power supply for SVID rails
  • Intel VR14 and VR13 compliant
  • VR14.Cloud compliant with telemetry level 2 and security level 2
  • PMBus 1.5 interface with NVM for configuration, telemetry (V/I/T) and fault reporting
  • Input voltage: 4V to 18V
  • Output voltage: 0.25V to 5.5V
  • Supports external 5V bias improving efficiency and enabling 2.7V minimum input voltage
  • Output current: 35A continuous and 40A peak
  • Cycle-by-cycle valley IOUT OCF limit programmable up to 40A
  • Input power monitoring (PIN sense)
  • Programmable DCM or FCCM operation
  • Switching frequency: 400kHz to 2MHz
  • Programmable internal loop compensation including droop (DC Load Line)
  • Programmable soft-start time from 0.5ms to 16ms
  • Programmable soft-stop time from 0.5ms to 4ms
  • Programmable output voltage slew rate: 0.625mV/µs to 25mV/µs
  • Programmable VIN UVLO, VOUT OVF/UVF, and OTF
  • Safe start-up into prebiased outputs
  • Precision voltage reference and differential remote sense for high output accuracy
    • ±0.5% tolerance from 0°C to 85°C junction
    • ±1% tolerance from –40°C to 125°C junction
  • Analog output current output pin (IMON)
  • D-CAP+™ control topology with fast transient response
  • Open-drain power-good output (VRRDY)

Description

The TPS544C27 device is highly integrated buck converter with D-CAP+ control topology for fast transient response. All programmable parameters can be configured by the PMBus interface and stored in non-volatile memory (NVM) as the new default values to minimize the external component count. These features make the device well-designed for space-constrained applications.

The TPS544C27 device is designed to work with Intel CPUs and fits well for single-phase, low-to-mid current SVID rails in the Intel server and SoC platforms requiring VR13, VR14, or VR14.Cloud compliance.

Fault management and status reports for the overcurrent fault (OCF), VOUT overvoltage fault (OVF), undervoltage fault (UVF), and overtemperature fault are provided on the device. The TPS544C27 device provides a full set of telemetry, including output voltage, output current, and device temperature.

TPS544C27 is a lead-free device and is RoHS compliant without exemption.

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