• 參數(shù)資料
    型號: MAX8553EEE
    廠商: MAXIM INTEGRATED PRODUCTS INC
    元件分類: 穩(wěn)壓器
    英文描述: 4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications
    中文描述: SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PDSO16
    封裝: 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
    文件頁數(shù): 5/24頁
    文件大?。?/td> 483K
    代理商: MAX8553EEE
    M
    4.5V to 28V Input, Synchronous PWM Buck Controllers
    for DDR Termination and Point-of-Load Applications
    _______________________________________________________________________________________
    5
    ELECTRICAL CHARACTERISTICS (continued)
    (V
    V+
    = V
    HSD
    = +12V, V
    EN/HSD
    = V
    REFIN
    = +2.5V, V
    EN
    = +5V, C
    VL
    = 4.7μF, C
    VTTR
    = 1μF, C
    REF
    = 0.22μF, V
    FSEL
    = 0V, ILIM = VL,
    PGND = LX = GND, BST = VL,
    T
    A
    = 0
    °
    C to +85
    °
    C.
    Typical values are at T
    A
    = +25
    °
    C, unless otherwise specified.)
    PARAMETER
    CONDITIONS
    MIN
    TYP
    MAX
    UNITS
    POWER-OK OUTPUT
    Upper VTT and VTTR Threshold
    Lower VTT and VTTR Threshold
    Upper Threshold
    Lower Threshold
    POK Output Low Level
    POK Output High Leakage
    MAX8553
    MAX8553
    MAX8554
    MAX8554
    I
    SINK
    = 2mA
    V
    POK
    = +5V
    55
    43
    56
    44
    57
    45
    % V
    RE FIN
    % V
    RE FIN
    V
    V
    V
    μA
    0.646
    0.504
    0.672
    0.528
    0.698
    0.552
    0.4
    5
    ELECTRICAL CHARACTERISTICS
    (V
    V+
    = V
    HSD
    = +12V, V
    EN/HSD
    = V
    REFIN
    = +2.5V, V
    EN
    = +5V, C
    VL
    = 4.7μF, C
    VTTR
    = 1μF, C
    REF
    = 0.22μF, V
    FSEL
    = 0, ILIM = VL, PGND
    = LX = POK = GND, BST = VL,
    T
    A
    = -40
    °
    C to +85
    °
    C
    , unless otherwise specified.) (Note 3)
    PARAMETER
    CONDITIONS
    MIN
    6
    4.5
    1.5
    1.5
    MAX
    28
    5.5
    28.0
    28.0
    3
    28.0
    40
    3.6
    1.2
    0.90
    250
    10
    1.2
    5
    1
    12
    4.40
    UNITS
    V
    V
    V
    V
    μA
    V
    μA
    V
    mA
    mA
    μA
    μA
    mA
    μA
    μA
    μA
    V
    V+ Input Voltage Range
    V+ Input Voltage Range
    EN/HSD Input Voltage Range
    EN Input Voltage Range
    EN Input Current
    HSD Input Voltage Range
    HSD Input Current
    REFIN Input Voltage Range
    V+ Supply Current (MAX8553)
    V+ Supply Current (MAX8554)
    REFIN Supply Current
    EN/HSD Supply Current
    VL Supply Current
    V+ Shutdown Supply Current
    REFIN Shutdown Supply Current
    VL Shutdown Supply Current
    VL Undervoltage-Lockout Threshold
    VTT
    VTT Input Bias Current
    VTT Feedback Voltage Range
    VL not connected to V+
    VL connected to V+
    MAX8553 enabled
    MAX8554 enabled
    MAX8554 enabled
    1.5
    0
    V
    VTT
    = +1.35V
    V
    FB
    = 630mV
    V
    VL
    = V
    V+
    = 5.5V, V
    VTT
    = +1.35V
    EN/HSD = GND
    EN/HSD = GND
    V
    VL
    = V
    V+
    = +5.5V, V
    EN/HSD
    = 0V
    Rising edge, typical hysteresis = 40mV
    4.05
    V
    VTT
    = +1.25V
    -0.2
    0
    49.5
    49.5
    -0.2
    0.598
    0.6
    0
    μA
    V
    1.8
    50.5
    50.5
    0
    0.616
    3.5
    V
    REFIN
    = V
    EN/HSD
    = +1.8V
    V
    REFIN
    = V
    EN/HSD
    = +3.6V
    MAX8554, V
    FB
    = +600mV
    MAX8554, V
    OUT
    = +2.5V, FSEL unconnected
    MAX8554 (Note 1)
    VTT Feedback Voltage Accuracy
    % V
    RE FIN
    FB Input Bias Current
    FB Regulation Voltage
    Output Adjust Range
    μA
    V
    V
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    參數(shù)描述
    MAX8553EEE+ 功能描述:電流型 PWM 控制器 4.5-28V Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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    MAX8554EEE+ 功能描述:電流型 PWM 控制器 4.5-28V Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14