General Description

The MAX5038A/MAX5041A dual-phase, PWM controllers provide high-output-current capability in a compact package with a minimum number of external components. The MAX5038A/MAX5041A utilize a dual-phase, average-current-mode control that enables optimal use of low RDS(ON) MOSFETs, eliminating the need for external heatsinks even when delivering high output currents.

Features

? +4.75V to +5.5V or +8V to +28V Input Voltage Range

? Up to 60A Output Current

? Internal Voltage Regulator for a +12V or +24V Power Bus

? True Differential Remote Output Sensing

? Two Out-Of-Phase Controllers Reduce Input

??? Capacitance Requirement and Distribute Power Dissipation

? Average-Current-Mode Control

??? Superior Current Sharing Between Individual Phases and Paralleled Modules

??? Accurate Current Limit Eliminates MOSFET and Inductor Derating

? Limits Reverse-Current Sinking in Paralleled Modules

? Integrated 4A Gate Drivers

? Selectable Fixed Frequency 250kHz or 500kHz per Phase (Up to 1MHz for Two Phases)

? Fixed (MAX5038A) or Adjustable (MAX5041A) Output Voltages

? External Frequency Synchronization from 125kHz to 600kHz

? Internal PLL with Clock Output for Paralleling Multiple DC-DC Converters

? Thermal Protection

? 28-Pin SSOP Package

Applications

??? Servers and Workstations

??? Point-of-Load High-Current/High-Density

??? Telecom DC-DC Regulators

??? Networking Systems

??? Large-Memory Arrays

??? RAID Systems

??? High-End Desktop Computers