General Description

The MAX15109 high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches deliver up to 8A of output current. This regulator operates from 2.7V to 5.5V and provides four output voltages using two VID control inputs.

This IC utilizes a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.

Features

● Continuous 8A Output Current

● Efficiency Over 90

● ±1 Accuracy Over Load, Line, and Temperature

● Operates from a 2.7V to 5.5V Supply

● VID Control Inputs for Selecting Output Voltage

● Programmable Slew-Rate Control

● Safe Startup into Prebiased Output

● 1MHz Switching Frequency

● Stable with Low-ESR Ceramic Output Capacitors

● Enable Input and Power-Good Output for Power

   Supply Sequencing

● Cycle-by-Cycle Overcurrent Protection Faults

● Fully Protected Against Overcurrent and

   Overtemperature

● Input Undervoltage Lockout

● 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package

Applications

● Distributed Power Systems

● DDR Memory

● Notebook Power