MAX1624-MAX1625中文資料美信數(shù)據(jù)手冊PDF規(guī)格書

General Description

The MAX1624/MAX1625 are ultra-high-performance, step-down DC-DC controllers for CPU power in high-end computer systems. Designed for demanding applications in which output voltage precision and good transient response are critical for proper operation, they deliver over 35A from 1.1V to 3.5V with ±1 total accuracy from a +5V ±10 supply. Excellent dynamic response corrects output transients caused by the latest dynamically clocked CPUs. These controllers achieve over 90 efficiency by using synchronous rectification. Flying-capacitor bootstrap circuitry drives inexpensive, external N-channel MOSFETs.

Features

? Better than ±1 Output Accuracy Over Line and Load

? 90 Efficiency

? Excellent Transient Response

? Resistor-Programmable Fixed Switching Frequency from 100kHz to 1MHz

? Over 35A Output Current

? Digitally Programmable Output from 1.1V to 3.5V in 100mV Increments (MAX1624)

? Resistor-Adjustable Output down to 1.1V (MAX1625)

? Remote Sensing

? Adjustable AC Loop Gain (MAX1624)

? GlitchCatcher? Circuit for Fast Load-Transient Response (MAX1624)

? Power-Good (PWROK) Output

? Current-Mode Feedback

? Digital Soft-Start

? Strong 2A Gate Drivers

? Current-Limited Output

Applications

Pentium Pro?, Pentium II?, PowerPC?, Alpha?, and K6? Systems

Desktop Computers

LAN Servers

Industrial Computers

GTL Bus Termination