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.