General Description

The MAX8664 dual-output PWM controller is a low-cost, high-performance solution for systems requiring dual power supplies. It provides two individual outputs that operate 180° out-of-phase to minimize input current ripple, and therefore, capacitance requirements. Built-in drivers are capable of driving external MOSFETs to deliver up to 25A output current from each channel.

Features

♦ ±0.8 Output Accuracy Over Load and Line

♦ Operates from a Single 4.5V to 28V Supply

♦ Simple Compensation for Any Type of Output

   Capacitor

♦ Internal 6.5V Regulator for Gate Drive

♦ Integrated Boost Diodes

♦ Adjustable Output from 0.6V to 0.9 x VIN

♦ Digital Soft-Start Reduces Inrush Current

♦ 100kHz to 1MHz Adjustable Switching

♦ 180° Out-of-Phase Operation Reduces Input

   Ripple Current

♦ Overcurrent and Overvoltage Protection

♦ External Reference Input for Second Controller

♦ Prebiased Startup Operation

Applications

   Desktop and Notebook PCs

   Graphic Cards

   ASIC/CPU/DSP Power Supplies

   Set-Top Box Power Supply

   Printer Power Supply

   Network Power Supply

   POL Power Supply