General Description

The MAX8833 high-efficiency, dual step-down regulator is capable of delivering up to 3A at each output. The device operates from a 2.35V to 3.6V supply, and provides output voltages from 0.6V to 0.9 x VIN, making it ideal for on-board point-of-load applications. Total output error is less than ±1 over load, line, and temperature.

Features

♦ 35mΩ On-Resistance Internal MOSFETs

♦ Dual, 3A, PWM Step-Down Regulators

♦ Fully Protected Against Overcurrent, Short Circuit, and Overtemperature

♦ ±1 Output Accuracy over Load, Line, and Temperature

♦ Operates from 2.35V to 3.6V Supply

♦ REFIN on One Channel for Tracking or External Reference

♦ Integrated Boost Diodes

♦ Adjustable Output from 0.6V to 0.9 x VIN

♦ Soft-Start Reduces Inrush Supply Current

♦ 0.5MHz to 2MHz Adjustable Switching, or FSYNC Input

♦ All-Ceramic-Capacitor Design

♦ 180° Out-of-Phase Operation Reduces Input Ripple Current

♦ Individual Enable Inputs and PWRGD Outputs

♦ Safe-Start into Prebiased Output

♦ Available in 5mm x 5mm Thin QFN Package

♦ Sink/Source Current in DDR Applications

Applications

   ASIC/CPU/DSP Power Supplies

   DDR Power Supplies

   Set-Top Box Power Supplies

   Printer Power Supplies

   Network Power Supplies