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.