TPS548C26 4-V to 16-V Input, 35-A Synchronous Buck Converter with Differential

Remote Sense

1 Features

• 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

• 0.8-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 pre-biased outputs

• Programmable soft-start time from 1 ms to 8 ms

• Open-drain power-good output (PG)

• Overcurrent, overvoltage, undervoltage,

overtemperature protections with selectable hiccup

or latch-off response

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

• TPS544C26 SVID/I2C converter in the same

package available

2 Applications

• Server and cloud-computing POLs

• Hardware accelerator

• Data center switches

3 Description

The TPS548C26 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-suited for

space-constrained data center applications.

The TPS548C26 device has true differential remote

sense,

high-performance

integrated

MOSFETs,

and an accurate ±1%, 0.8-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,

overtemperature

protections

are

provided

with

selectable hiccup or latch-off response.

The TPS548C26 device is a lead-free device and is

RoHS compliant without exemption.

Package Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

TPS548C26

RXX (WQFN-FCRLF, 37) 5.00 mm × 6.00 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

PVIN

VCC

EN

PG

MODE

ILIM

SS

DNC

EN

Power Good

BOOT

SW

FB

GOSNS

V

OUT

V

IN

AGND

PGND

VDRV

PHASE

VOSNS

AVIN

NC

NC

NC

Load

NC

33

34

35

6

37

Simplified Schematic

Iout (A)

0

5

10

15

20

25

30

45

50

55

60

65

70

75

80

85

90

95

PVIN=12V

VOUT=1.1V

fSW=800kHz

Use the internal LDO

Use an external 5V bias

Typical Efficiency

TPS548C26

SLVSGM2 – MARCH 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.