Maxim Integrated MAX5066EUI

Description
The MAX5066 is a configurable, single-/dual-output, synchronous buck controller designed for high-current applications. It operates with an input voltage range of 4.75V to 5.5V or 5V to 28V. Each phase of the MAX5066 is designed for 180° operation, allowing for a dual-output supply or connecting two phases together for a single-output, high-current supply. Each output channel drives n-channel MOSFETs and is capable of providing more than 25A of load current. The MAX5066 uses average current-mode control with a switching frequency up to 1MHz per phase, where each phase is 180° out of phase with respect to the other. Out-of-phase operation significantly reduces input capacitor ripple current and output voltage ripple in dual-phase, single-output voltage applications. Each buck regulator output has its own high-performance current and voltage-error amplifier that can be compensated for optimum output filter L-C values and transient response.

Features
Dual-Output Synchronous Buck Controller
Configurable for Two Separate Outputs or One Single Output
Each Output is Capable of Up to 25A Output Current
Average Current-Mode Control Provides Accurate Current Limit
180° Interleaved Operation Reduces Size of Input Filter Capacitors
Limits Reverse Current Sinking When Operated in Parallel Mode
Each Output is Adjustable from 0.61V to 5.5V
Independently Programmable Adaptive Voltage Positioning
Independent Shutdown for Each Output
100kHz to 1MHz per Phase Programmable Switching Frequency
Oscillator Frequency Synchronization from 200kHz to 2MHz
Hiccup Mode Overcurrent Protection
Overtemperature Shutdown
Thermally Enhanced 28-Pin TSSOP Package Capable of Dissipating 1.9W
Operates Over -40°C to 85°C or -40°C to 125°C Temperature Range

Applications
High-End Desktop Computers
Graphics Cards
Networking Systems
Point-of-Load High-Current/High-Density
Telecom DC-DC Regulators
RAID Systems