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    參數(shù)資料
    型號(hào): SC418ULTRT
    廠商: Semtech
    文件頁數(shù): 5/30頁
    文件大?。?/td> 691K
    描述: IC REG DL BUCK/LINEAR 20MLPQ
    產(chǎn)品培訓(xùn)模塊: Power Supplies 101
    標(biāo)準(zhǔn)包裝: 1
    系列: EcoSpeed®
    拓?fù)洌?/td> 降壓(降壓)(1),線性(LDO)(1)
    功能: 任何功能
    輸出數(shù): 2
    頻率 - 開關(guān): 1MHz
    電壓/電流 - 輸出 1: 控制器
    電壓/電流 - 輸出 2: 0.75 V ~ 5.25 V,200mA
    帶 LED 驅(qū)動(dòng)器:
    帶監(jiān)控器:
    帶序列發(fā)生器:
    電源電壓: 3 V ~ 28 V
    工作溫度: -40°C ~ 85°C
    安裝類型: 表面貼裝
    封裝/外殼: 20-MLPQ
    供應(yīng)商設(shè)備封裝: 20-MLPQ(3x3)
    包裝: 標(biāo)準(zhǔn)包裝
    其它名稱: SC418ULTRTDKR
    SC418
    5
    Electrical Characteristics (continued)
    Parameter
    Conditions
    Min  Typ  Max  Units
    Fault Protection
    I
    LIM
     Source Current
    9    0        糀
    I
    LIM
     Source Current Temperature Coefficient
    (2)
    0.4
    %/癈
    I
    LIM
    Comparator Offset
    With respect to AGND
    -8    0    +8    mV
    Output Under-Voltage Threshold
    V
    FB
     with respect to internal 500mV reference,
    8 consecutive cycles
    -25
    %
    Smart Power-Save Protection Threshold
    (2)
    V
    FB
     with respect to internal 500mV reference
    +0
    %
    Over-Voltage Protection Threshold
    V
    FB
     with respect to internal 500mV reference
    +20
    %
    Over-Voltage Fault Delay
    (2)
     
    5
    Over-Temperature Shutdown
    (2)
    0癈 hysteresis
    50
    Logic Inputs/Outputs
    Logic Input High Voltage - EN, ENL
    (4)
    .0
    V
    Logic Input High Voltage - PSV
    Forced continuous mode operation;
    PSV with respect to VDDA
    -0.4
    V
    Logic Input Low Voltage - EN, ENL
    With respect to AGND
    0.4    V
    EN Input Bias Current
    EN = VDDA or AGND
    -0
    +0   糀
    ENL Input Bias Current
    V
    IN
     = 28V
    -        +8   糀
    FB, FBL Input Bias Current
    FB, FBL = VDDA or AGND
    -
    +    糀
    PSV Input Bias Current
    PSV = VDDA
    
    Linear Dropout Regulator
    FBL Accuracy
    VLDO load = 0mA
    0.735   0.75   0.765   V
    Current Limit
    Start-up and foldback;
    V
    LDO
     < 90% of programmed value
    5
    mA
    Operating
    35   200
    VLDO to VOUT Switch-over Threshold
     (5)
    -40
    +40   mV
    VLDO to VOUT Non-switch-over Threshold
     (5)
    -450
    +450   mV
    VLDO to VOUT Switch-over Resistance
    V
    LDO
     = V
    OUT
     = 5V
    2.0
    &
    V
    LDO
     = V
    OUT
     = 3.3V
    (6)
    2.2
    LDO Drop Out Voltage
    (6)
    V
    IN
     to V
    VLDO
    , V
    VLDO
     = 5V, VLDO load = 00mA
    .2
    V
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