1 Features

• Integrated 4.0-mΩ and 1.0-mΩ MOSFETs for 40-A

continuous current operation

• Supports external 5-V bias improving efficiency

and enabling 2.7-V minimum input voltage

• 0.6-V to 5.5-V output voltage range

• 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

• Selectable internal loop compensation through SS

pin

• 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 prebiased outputs

• Programmable soft-start time from 0.75 ms to 6 ms

• Open-drain power-good output (PG)

• Overcurrent, overvoltage, undervoltage, and

overtemperature protections with selectable hiccup

or latch-off response

• 5-mm × 6-mm, 37-pin WQFN-FCRLF package

2 Applications

• Server and cloud-computing POLs

• Hardware accelerator

• Data center switches

3 Description

The TPS548D26 device is a highly integrated buck

converter with D-CAP+ control topology for the fast

transient response. Because external compensation is

not required, the device is easy to use and requires

few external components. The device is well-designed

for space-constrained data center applications.

The TPS548D26 device has true differential remote

sense, high-performance integrated MOSFETs, and

an accurate ±1, 0.6-V reference over the full

operating junction temperature range. The device

features fast load-transient response, accurate

load regulation and line regulation, skip-mode

or FCCM operation, and programmable soft-start

time. Overcurrent, overvoltage, undervoltage, and

overtemperature protections are provided with

selectable hiccup or latch-off response.

The TPS548D26 device is a lead-free device and is

RoHS compliant without exemption.