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高速、同步整流、降压型控制器,用于CPU电源

业内尺寸最小、响应速度最快的Pentium® Pro/Pentium II电源

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主要特征

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采样:
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后,所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站,请创建一个新帐户。有关此样片网站的任何问题,请联系SampleSupport@analog.com

主要特征

  • 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

应用/用途

  • 计算机:台式机、工作站和服务器
  • GTL总线端接
  • 工业计算机
  • LAN服务器
  • Pentium®

描述

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.

The switching frequency is resistor programmable from 100kHz to 1MHz. High switching frequencies allow the use of a small surface-mount inductor and decrease output filter capacitor requirements, reducing board area and system cost.

The MAX1624 is available in a 24-pin SSOP and offers additional features such as a digitally programmable output in 100mV increments; adjustable transient response; selectable 0.5%, 1%, or 2% AC load regulation; and gate drive for a current-boost MOSFET. The MAX1625 is resistor adjustable and comes in a 16-pin narrow SO package. Other features in both controllers include internal digital soft-start, a power-good output, and a 3.5V ±1% reference output. For a similar controller compatible with the latest Intel® VRM/VID specification, see the MAX1638 data sheet.

简化框图

MAX1624、MAX1625:典型工作电路 MAX1624、MAX1625:典型工作电路 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

采样:
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后,所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站,请创建一个新帐户。有关此样片网站的任何问题,请联系SampleSupport@analog.com