General Description

The MAX15118 high-efficiency, current-mode step-down regulator with integrated power switches operates from 2.7V to 5.5V and delivers up to 18A of output current in a small 2mm x 3.5mm package. The MAX15118 offers excellent efficiency with skip mode capability at light load conditions, yet provides unmatched efficiency under heavy load conditions. The combination of small size and high efficiency makes this device suitable for both portable and nonportable applications.

Features

♦ Continuous 18A Output Current Over Temperature

♦ ±1 Feedback Accuracy Over Load, Line, and  Temperature

♦ Operates from 2.7V to 5.5V Supply

♦ Input Undervoltage Lockout

♦ Adjustable Output Range from 0.6V Up to 0.94 x VIN

♦ Programmable Soft-Start

♦ Factory-Trimmed 1MHz Switching Frequency

♦ Stable with Low-ESR Ceramic Output Capacitors

♦ Safe-Startup into a Prebiased Output

♦ External Reference Input

♦ Selectable Skip Mode Option for Improved  Efficiency at Light Loads

♦ Enable Input/PGOOD Output Allows Sequencing

♦ Remote Ground Sense for Improved Accuracy

♦ Thermal and Overcurrent Protection

♦ Tiny 2.10mm x 3.56mm, 28-Bump WLP Package

Applications

   Notebooks

   Servers

   Distributed Power Systems

   DDR Memory

   Base Stations