1 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: 40A continuous and 50A peak

? Cycle-by-cycle valley IOUT OCF limit

programmable up to 50A

? 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)

2 Applications

? Server and cloud-computing POLs

? Hardware accelerator

? Network interface card

? Broadband, networking, and optical

? Wireless infrastructure

3 Description

The TPS544E27 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 spaceconstrained

applications.

The TPS544E27 device is designed to work with

Intel CPUs and fits well for single-phase, low-tomid

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 TPS544E27 device

provides a full set of telemetry, including output

voltage, output current, and device temperature.

Additionally, input power monitoring through an

external sensing resistor is provided for board-level

power management.

TPS544E27 is a lead-free device and is RoHS

compliant without exemption.