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.