1 Features

1• Integrated 13.8– and 5.9-mΩ MOSFETs Support

12-A Continuous Output Current

• Adjustments Available Through

PMBus™SWIFT™

– Voltage Margin and Adjustment

– Soft-Start Time

– Power-On Delay

– VDD UVLO Level

– Fault Reporting

– Switching Frequency

• Supports All Ceramic Output Capacitors

• Reference Voltage 600 mV ±0.5% Tolerance

• Output Voltage Range: 0.6 V to 5.5 V

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

Response

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

Efficiency

• FCCM for Tight Output Ripple and Voltage

Requirements

• Eight Selectable Frequency Settings from

200 kHz to 1 MHz

• 3.5 mm × 4.5 mm, 28-Pin, QFN Package

2 Applications

• Server and Cloud-Computing Point-of-Load (POL)

Products

• Broadband, Networking, and Optical

Communications Infrastructure

• I/O Supplies

• Supported at the WEBENCH™ Design Center

3 Description

The TPS53915 is a small-sized, synchronous buck converter with an adaptive on-time D-CAP3 control

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

external-component count for space-conscious power

systems.

This device features high-performance integrated

MOSFETs, accurate 0.5% 0.6-V reference, and an integrated boost switch. Competitive features include

very-low external-component count, fast load-

transient response, auto-skip mode operation,

internal soft-start control, and no requirement for

compensation. The device also features

programmability and fault report via PMBus™ to

simplify the power supply design.

A forced continuous conduction mode helps meet

tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53915 is

available in a 28-pin QFN package and is specified

from –40°C to 85°C ambient temperature.