1 Features

• New products available: TPS548A28 and

TPS548A29 16V, 15A, synchronous converters

with remote sense

• Conversion input voltage range: 1.5V to 22V

• VDD input voltage range: 4.5V to 25V

• 91% efficiency from 12V to 1.5V at 14A

• Output voltage range: 0.6V to 5.5V

• 5V LDO output

• Supports single-rail input

• Integrated power MOSFETs with 8A (TPS53318)

or 14A (TPS53319) of continuous output current

• Auto-skip Eco-mode for light-load efficiency

• < 110μA shutdown current

• D-CAP™ integrated circuit mode with fast transient

response

• Selectable switching frequency from 250kHz to

1MHz with external resistor

• Selectable auto-skip or PWM-only operation

• Built-in 1% 0.6V reference

• 0.7ms, 1.4ms, 2.8ms and 5.6ms selectable internal

voltage servo soft-start

• Integrated boost switch

• Pre-charged start-up capability

• Adjustable overcurrent limit with thermal

compensation

• Overvoltage, undervoltage, UVLO and

overtemperature protection

• Supports all ceramic output capacitors

• Open-drain power-good indication

• Incorporates NexFET™ power MOSFET block

technology

• 22-pin QFN (DQP) package with PowerPAD™

integrated circuit package

2 Applications

• Server and storage

• Workstations and desktops

• Telecommunications infrastructure

3 Description

The TPS53318 and TPS53319 devices are D-CAP

mode, 8A or 14A, synchronous switchers with

integrated MOSFETs. These devices are designed

for ease of use, low external component count, and

space-conscious power systems.

These devices feature accurate 1%, 0.6V reference,

and integrated boost switch. A sample of competitive

features include: 1.5V to 22V wide conversion input

voltage range, very low external component count,

D-CAP integrated circuit mode control for super

fast transient, auto-skip mode operation, internal softstart

control, selectable frequency, and no need for

compensation.

The conversion input voltage ranges from 1.5V to

22V, the supply voltage range is from 4.5V to 25V,

and the output voltage range is from 0.6V to 5.5V.

These devices are available in 5mm × 6mm, 22-pin

QFN package and is specified from –40°C to 85°C.

The TPS548A28 and TPS548A29 are newer 15A

devices designed for data center applications in a

smaller, fully lead-free package.