MAX20751

Multiphase Master with PMBus Interface and Internal Buck Converter


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说明

The MAX20751 PMBus-compliant multiphase master IC, with extensive status and parameter monitoring, is capable of driving up to four smart-slave integrated power devices.

Utilizing Maxim’s smart-slave ICs, the device provides a high-density and flexible solution that can be tailored to a range of power loads used in communication equipment. Proprietary-coupled inductors, recommended to reduce the effective inductor value without excessive ripple current, results in improved transient response and reduction in the number of output capacitors required.

The device incorporates current reporting, temperature monitoring, fault detection, and PMBus support. Overcurrent and overtemperature faults are detected by the individual smart slaves and faults communicated through the master IC. The highest junction temperature is reported, both before and after smart-slave regulation.

The device features an integrated switching regulator that can optionally be used to supply the VDD rail for the master controller and smart-slave devices to reduce the power-rail requirements and simplify the regulator design.
MAX20751: Typical Operating Circuit MAX20751: Typical Operating Circuit 放大+

关键特性

  • Increased Power Density with Fewer External Components Needed
    • Scalable, Multiphase Solution
    • Compatibility with Coupled Inductors Enables Fast Transient Response and Reduced COUT
    • Integrated Internal Switching Regulator to Power Smart Slaves
  • Optimized Component Performance and Efficiency with Reduced Design-In Time
    • PMBus-Compliant Interface for Telemetry and Power Management
    • Field-Programmable Memory to Allow Storage of Desired Configuration Parameters
    • Fault Logging
  • Comprehensive System and IC Self-Protection Features Promote Increased Power-Supply Reliability
    • Overcurrent and Overtemperature
    • Boost Voltage UVLO
    • VX Short to Ground or VDDH Detection
    • Phase-Current Steering for Thermal Balancing
  • 36-Pin (6mm × 6mm) QFN Package

应用

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请查看具体的参数规格 Step-Down Switching Regulators (408)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxmaxSee Notes
MAX20751 1.713.630.51.52
Digital/VID
Resistor
120ExternalYesYes1800EE-Sim
SAWN QFN/36
$3.39 @1k

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。

MAX20751S1VKIT: MAX20751/VT1697SB评估板

工具和模型

  • EE-Sim: MAX20751 设计和仿真
  • 产品可靠性报告: MAX20751.pdf 
    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    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。

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    类型 编号 标题
    评估板8940MAX20751S1VKIT MAX20751/VT1697SB评估板