MAX1939

双相、台式机CPU核电源控制器,带有受控的VID调节


点击查看特定型号的库存状况。

说明

MAX1937/MAX1938/MAX1939构成一类同步的、两相、降压控制器,具有高达60A的输出负载电流。这些控制器利用了和有效负载电流电压定位相结合的Quick-PWM™控制结构。Quick-PWM控制结构提供了迅疾的负载阶跃响应,同时可编程控制的电压定位技术允许转换器对全部瞬态调整予以限制,减少了对输出电容器容量的要求。两相按180°错相工作在500kHz有效开关频率下,降低了输入和输出的电流脉动,同时也减少了对输入滤波电容器的需求。

MAX1937/MAX1938/MAX1939和AMD Hammer、Intel®电压调整模块(VRM) 9.0/9.1、AMD Athlon™ Mobile VID编码规则(查VID码见完整数据资料中的表1)相兼容。内部DAC提供了±0.75%的超高精度。通过控制VID电压瞬变来尽可能地减小在VID输入变化时的欠压和过压过冲情况。

带有远端检测以达到高输出电压精度。通过一个6V的栅极驱动电路来驱动外部MOSFET以尽可能降低开关和交叉导通损失,可以取得高达90%的效率。MAX1937/MAX1938/MAX1939具有逐周期的电流保护特性以保证不出现过流。用强制钳位保护防止输出过压。
MAX1937、MAX1938、MAX1939:典型应用电路 MAX1937、MAX1938、MAX1939:典型应用电路 放大+

关键特性

  • ±0.75%输出电压精度
  • 快速负载瞬态响应
  • 高达90%的效率免用散热器
  • 高达60A的输出电流
  • 8V至24V的输入电压范围
  • 用户可编程的电压定位
  • 可控的VID电压过渡
  • 500kHz有效的开关频率
  • MAX1937:AMD Hammer相兼容
  • MAX1938:Intel VRM 9.0/9.1相兼容
  • MAX1939:AMD Athlon Mobile兼容
  • 软启动
  • 电源状态好(PWRGD)输出
  • 逐周期的电流限制
  • 输出过压保护(OVP)
  • RDS(ON)或RSENSE电流检测
  • 远端电压检测
  • 28引脚QSOP封装

应用

  • 刀片式服务器
  • 高端交换与路由器
  • 高端交换与路由器
  • 大基站
  • 笔记本电脑与台式计算机
  • 服务器与工作站
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX1937 6240.81.55Digital/VID60ExternalYesYes1250
QSOP/28
$2.79 @1k
查看所有Step-Down Switching Regulators (388)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
Status:
Package:
Temperature:

相关资料


MAX20473
Low-Voltage Synchronous Boost Converter

  • Synchronous Boost Converter
  • 3.0V to 4.0V Operating Supply Voltage
  • True Output Shutdown
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • 93V ±2% Undervoltage Monitoring
    • 107V ±2% Overvoltage Monitoring
  • Robust for the Automotive Environment
    • Current-Mode Control, Forced-PWM, and Skip Operation
    • Overtemperature and Overcurrent Protection
    • 12-Pin (3mm × 3mm) TDFN

  • MAX17662
    3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX77504
    14V Input, 3A High-Efficiency Buck Converter in WLP or QFN

    • 3A Single-Channel Buck Regulator
    • 2.6V to 14V Input Voltage
    • 0.6V to 6V Output Voltage Range

    MAX20458
    36V Boost Controller with 3.5A Synchronous Buck Converter For Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

    MAX20057
    36V Boost Controller with Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • Integration and Thermally Enhanced Packages Save Board Space and Cost

    MAX17631
    4.5V to 36V, 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX17634A
    4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX17634B
    4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX17634C
    4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX77501
    110VPK-PK High-Efficiency Piezo Haptic Actuator Boost Driver

    • 110VPK-PK Haptic Waveforms Generation
    • Optimized for up to 2µF Haptic Piezo Actuator
    • 2.8V to 5.5V Input Supply Range

    MAX20457
    36V Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input-Voltage Range

    MAXM17536
    4.5V to 60V, 4A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

    • Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
    • Saves Board Space in Space-Constrained Applications
    • Offers Flexibility for Power-Design Optimization

    MAX17576
    4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20412
    Automotive Low-Voltage 2-Channel Step-Down Controller

    • 2-Channel, High-Efficiency DC-DC Controller in a Small Solution Size
    • High-Precision Regulator for Applications Processors
    • Low-Noise Features Reduce EMI

    MAX20343
    Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

    • Extend System Run Time
    • Low, Continuous Noise Profile
    • Adaptable Load Transient Response

    MAX20004E
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX20006E
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX20008E
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX17630
    4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20011
    Automotive Single 8A/12A Step-Down Converter with High Efficiency

    • High-Efficiency DC-DC Converter
    • Up to 12A peak output current:
    • Differential Remote Voltage Sensing

    MAX15158Z
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX20079
    Automotive 36V 3.5A Buck Converter with 3.5μA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20026, MAX20026S
    汽车应用、四通道、低压、降压型DC-DC转换,带低噪声LDO

    • 高度集成减小方案尺寸
    • 设计性能支持汽车应用负载点调节
    • 低噪声特性改善EMI性能

    MAX20026S
    汽车应用、四通道、低压、降压型DC-DC转换,带低噪声LDO

    • 高度集成减小方案尺寸
    • 设计性能支持汽车应用负载点调节
    • 低噪声特性改善EMI性能

    MAX20801
    MPP跟踪DC-DC转换器

    • 对20-24个串联PV电池执行MPPT
    • 快速MPPT快速响应条件变化
    • 集成限压箝位输出电压

    MAX20800
    MPP跟踪DC-DC转换器

    • 对20-24个串联PV电池执行MPPT
    • 快速MPPT快速响应条件变化
    • 集成限压箝位输出电压

    MAX20059
    4.5V至76V、1A高效、同步降压型DC-DC转换器

    • 同步DC-DC转换器,集成FET
    • 设计灵活性
    • 低电平有效RESET输出和EN输入(最大26V)简化电源排序

    MAX20058
    60V、1A、汽车应用、同步降压型DC-DC转换器

    • 同步DC-DC转换器,集成FET
    • 设计灵活性
    • 低电平有效RESET输出和EN输入(最大26V)简化上电时序