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    參數(shù)資料
    型號: NCP5220
    廠商: ON SEMICONDUCTOR
    元件分類: 基準(zhǔn)電壓源/電流源
    英文描述: 3&#8722;in&#8722;1 PWM Dual Buck and Linear Power Controller
    文件頁數(shù): 1/18頁
    文件大?。?/td> 182K
    代理商: NCP5220
    Semiconductor Components Industries, LLC, 2004
    November, 2004 Rev. 4
    1
    Publication Order Number:
    NCP5220/D
    NCP5220
    3in1 PWM Dual Buck and
    Linear Power Controller
    The NCP5220 3in1 PWM a Dual Buck and Linear Power
    Controller, is a complete power solution for MCH and DDR memory.
    This IC combines the efficiency of PWM controllers for the VDDQ
    supply and the MCH core supply voltage with the simplicity of linear
    regulator for the VTT termination voltage.
    This IC contains two synchronous PWM buck controller for driving
    four external NCh FETs to form the DDR memory supply voltage
    (VDDQ) and the MCH regulator. The DDR memory termination
    regulator (VTT) is designed to track at the half of reference voltage
    with sourcing and sinking current.
    Protective features include, softstart circuitry, undervoltage
    monitoring of 5VDUAL, BOOT voltage and thermal shutdown. The
    device is housed in a thermal enhanced spacesaving DFN20
    package.
    Features
    PbFree Package is Available*
    Incorporates Synchronous PWM Buck Controllers for VDDQ and
    VMCH
    Integrated Power FETs with VTT Regulator Source/Sink up to 2.0 A
    All External Power MOSFETs are NChannel
    Adjustable VDDQ and VMCH by External Dividers
    VTT Tracks at Half the Reference Voltage
    Fixed Switching Frequency of 250 kHz for VDDQ and VMCH
    Doubled Switching Frequency of 500 kHz for VDDQ Controller in
    Standby Mode to Optimize Inductor Current Ripple and Efficiency
    SoftStart Protection for All Controllers
    Undervoltage Monitor of Supply Voltages
    Overcurrent Protections for DDQ and VTT Regulators
    Fully Complies with ACPI Power Sequencing Specifications
    Short Circuit Protection Prevents Damage to Power Supply Due to
    Reverse DIMM Insertion
    Thermal Shutdown
    5x6 DFN20 Package
    Typical Applications
    DDR I and DDR II Memory and MCH Power Supply
    *For additional information on our PbFree strategy and soldering details, please
    download the ON Semiconductor Soldering and Mounting Techniques
    Reference Manual, SOLDERRM/D.
    PIN CONNECTIONS
    Device
    Package
    Shipping
    ORDERING INFORMATION
    NCP5220MNR2
    DFN20
    2500 Tape & Reel
    NCP5220= Specific Device Code
    A
    = Assembly Location
    WL
    = Wafer Lot
    YY
    = Year
    WW
    = Work Week
    MARKING
    DIAGRAM
    COMP
    FBDDQ
    SS
    SW_DDQ
    BG_DDQ
    TG_DDQ
    PGND
    VTT
    VDDQ
    AGND
    FBVTT
    SLP_S5
    FB1P5
    BOOT
    5VDUAL
    COMP_1P5
    SLP_S3
    TG_1P5
    BG_1P5
    GND_1P5
    DFN20
    MN SUFFIX
    CASE 505AB
    1
    20
    NCP5220
    AWLYYWW
    1
    For information on tape and reel specifications,
    including part orientation and tape sizes, please
    refer to our Tape and Reel Packaging Specification
    Brochure, BRD8011/D.
    NOTE: Pin 21 is the thermal pad
    on the bottom of the device.
    NCP5220MNR2G
    DFN20
    (PbFree)
    2500 Tape & Reel
    http://onsemi.com
    相關(guān)PDF資料
    PDF描述
    NCP5220MNR2 3&#8722;in&#8722;1 PWM Dual Buck and Linear Power Controller
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    NCP5220AMNR2 功能描述:DC/DC 開關(guān)控制器 3-in-1 PWM Dual Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
    NCP5220AMNR2G 功能描述:DC/DC 開關(guān)控制器 ANA DDR PWER CNTRLR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
    NCP5220MNR2 功能描述:DC/DC 開關(guān)控制器 3-in-1 PWM Dual Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
    NCP5220MNR2G 功能描述:DC/DC 開關(guān)控制器 3-in-1 PWM Dual Buck Linear DDR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
    NCP5222 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual-Channel / Two-Phase Synchronous Buck Controller for Notebook Power System