1 Features

1• Integrated SWIFT™ 9.9-mΩ and 4.3-mΩ

MOSFETs Support 15-A Continuous IOUT

• Wide Conversion Input Voltage Range: 1.5 V to

20 V (with Snubber)

• Output Voltage Range from 0.6 V to 5.5 V

• Supports All Ceramic Output Capacitors

• Reference Voltage: 600 mV with ±0.5% Tolerance

from –40°C to 85°C ambient temperature

• D-CAP3™ Control Mode With Fast Load-Step

Response

• Hiccup Over Current Protection

• Auto-Skipping Eco-Mode™ for High Light-Load

Efficiency

• FCCM for Tight Output Ripple and Voltage

Tolerance Requirements

• Pre-charged Startup Capability

• Eight Selectable Frequency Settings from

200 kHz to 1 MHz

• 4.5 mm x 3.5 mm, 28-Pin, VQFN-CLIP Package

• Supported at the WEBENCH™ Design Center

2 Applications

• Server, Cloud-Computing, Storage

• Telecom & Networking, Point-of-Load (POL)

• IPCs, Factory Automation, PLC, Test

Measurement

• Performance DSPs, FPGAs

3 Description

The TPS548A20 is a small-sized, synchronous buck

converter with an adaptive on-time D-CAP3 control

mode. The device offers ease-of-use and low bill-ofmaterial

count for space-conscious power systems.

This device features high-performance integrated

MOSFETs, accurate 0.6-V reference, and an

integrated boost switch. Competitive features include

very-low external-component count, fast loadtransient

response, auto-skip mode operation,

internal soft-start control, and no requirement for

compensation.

A forced continuous conduction mode helps meet

tight voltage regulation accuracy requirements for

performance DSPs and FPGAs. The TPS548A20 is

available in a 28-pin VQFN-CLIP package and is

specified from –40°C to 125°C ambient temperature.