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    參數(shù)資料
    型號(hào): LD1117S12C
    廠商: 意法半導(dǎo)體
    元件分類(lèi): 基準(zhǔn)電壓源/電流源
    英文描述: 5.0 AMP POSITIVE VOLTAGE REGULATOR
    中文描述: 5.0放大器正電壓穩(wěn)壓器
    文件頁(yè)數(shù): 1/28頁(yè)
    文件大小: 624K
    代理商: LD1117S12C
    1/28
    October 2004
    I
    LOW DROPOUT VOLTAGE (1V TYP.)
    2.85V DEVICE PERFORMANCES ARE
    SUITABLE FOR SCSI-2 ACTIVE
    TERMINATION
    OUTPUT CURRENT UP TO 800 mA
    FIXED OUTPUT VOLTAGE OF: 1.2V, 1.8V,
    2.5V, 2.85V, 3.0V, 3.3V, 5.0V
    ADJUSTABLE VERSION AVAILABILITY
    (V
    rel
    =1.25V)
    INTERNAL CURRENT AND THERMAL LIMIT
    AVAILABLE IN ± 1% (AT 25°C) AND 2% IN
    FULL TEMPERATURE RANGE
    SUPPLY VOLTAGE REJECTION: 75dB (TYP.)
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    DESCRIPTION
    The LD1117 is a LOW DROP Voltage Regulator
    able to provide up to 800mA of Output Current,
    available even in adjustable version (Vref=1.25V).
    Concerning fixed versions, are offered the
    following Output Voltages: 1.2V,1.8V,2.5V,2.85V,
    3.0V 3.3V and 5.0V. The 2.85V type is ideal for
    SCSI-2 lines active termination. The device is
    supplied in: SOT-223, DPAK, SO-8, TO-220 and
    TO-220FM. The SOT-223 and DPAK surface
    mount
    packages
    optimize
    characteristics even offering a relevant space
    saving effect. High efficiency is assured by NPN
    the
    thermal
    pass transistor. In fact in this case, unlike than
    PNP one, the Quiescent Current flows mostly into
    the load. Only a very common 10μF minimum
    capacitor is needed for stability. On chip trimming
    allows the regulator to reach a very tight output
    voltage tolerance, within ± 1% at 25°C. The
    ADJUSTABLE LD1117 is pin to pin compatible
    with the other standard. Adjustable voltage
    regulators maintaining the better performances in
    terms of Drop and Tolerance.
    LD1117
    SERIES
    LOW DROP FIXED AND ADJUSTABLE
    POSITIVE VOLTAGE REGULATORS
    Figure 1: Block Diagram
    SOT-223
    DPAK
    TO-220FM
    SO-8
    TO-220
    Rev. 16
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    LD1117S12CTR 功能描述:低壓差穩(wěn)壓器 - LDO Low drop fixed Adj pos volt reg RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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