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    产品型号BL1117_16的Datasheet PDF文件预览

    BL1117  
    1A Bipolar Linear Regulator  
    DESCRIPTION  
    FEATURES  
    Other than a fixed version and an adjustable  
    version, output value can be customized on  
    demand.  
    Maximum output current is 1A  
    Range of operation input voltage: Max 12V  
    Standby current: 2mA (typ.)  
    Line regulation: 0.1%/V (typ.)  
    Load regulation: 10mV (typ.)  
    Environment Temperature: -40C~85C  
    BL1117 is a series of low dropout three-terminal  
    regulators with a dropout of 1.3V at 1A load current.  
    BL1117 features a very low standby current 2mA  
    compared to 5mA of competitor.  
    Other than a fixed version, Vout = 1.2V, 1.5V, 1.8V,  
    2.5V, 3.3V, 5V, and 12V, BL1117 has an adjustable  
    version, which can provide an output voltage from  
    1.25 to 12V with only two external resistors.  
    BL1117 offers thermal shut down and current limit  
    functions, to assure the stability of chip and power  
    system. And it uses trimming technique to  
    guarantee output voltage accuracy within 2%.  
    Other output voltage accuracy can be customized  
    on demand, such as 1%  
    APPLICATIONS  
    Power Management for Computer Mother  
    Board, Graphic Card  
    BLD Monitor and BLD TV  
    DVD Decode Board  
    ADSL Modem  
    BL1117 is available in SOT-223, TO-252 power  
    package.  
    Post Regulators for Switching Supplies  
    TYPICAL APPLICATION  
    TYPICAL ELECTRICAL CHARACTERISTIC  
    BL1117  
    BL1117  
    Vout  
    Vin  
    Vin  
    Vout  
    Gnd  
    10uF  
    10uF  
    Application circuit of BL1117 fixed version  
    NOTE: Input capacitor (Cin=10uF) and Output  
    capacitor (Cout=10uF) are recommended in all  
    application circuit. Tantalum or MLCC capacitor is  
    recommended.  
    www.belling.com.cn  
    1
    BL1117  
    ORDERING INFORMATION  
    BL1117-XX X X  
    PIN CONFIGURATION  
    Pin Description：  
    Package Type：  
    Fixed Version  
    X：SOT-223  
    Y：TO-252  
    Pin No. Symbol Definition  
    1
    2
    3
    GND  
    Vout  
    Vin  
    Ground  
    Output  
    Input  
    Temp. Range & Rohs Std.：  
    A：85C & Pb-free Rhos  
    Std,Output voltage accuracy  
    within 1％  
    C： 85C & Pb-free Rohs  
    Std,Output voltage accuracy  
    within 2％  
    Adjustable Version  
    Pin No. Symbol Definition  
    1
    2
    3
    Adj.  
    Vout  
    Vin  
    Adjustable  
    Output  
    Input  
    Output Voltage：  
    12……1.2V  
    15……1.5V  
    A：Means assembly year and weeks  
    Year 2010 2011 2012 2013 …  
    18……1.8V  
    25……2.5V  
    Y
    0
    1
    2
    3
    …
    33……3.3V  
    50……5.0V  
    Default：Adjustable Version  
    Week 1  
    2
    …
    …
    26 27 … 52  
    53  
    A
    W
    A
    B
    Z
    …
    B：Means Manufacture LOT No.  
    C：Means Output Voltage Value  
    D：Means Temp. Range&Rohs Std  
    ABSOLUTE MAXIMUM RATING  
    Parameter  
    Value  
    Max Input Voltage  
    15V  
    Max Operating Junction Temperature(Tj)+  
    Ambient Temperature(Ta)  
    150C  
    -40C – 85C  
    20C / W  
    10C / W  
    -40C - 150C  
    260C, 10S  
    Note: Exceed these limits to  
    damage to the device.  
    Package Thermal Resistance  
    SOT-223  
    TO-252  
    Exposure  
    to  
    absolute  
    maximum rating conditions  
    may affect device reliability.  
    Storage Temperature(Ts)  
    Lead Temperature & Time  
    RECOMMENDED WORK CONDITIONS  
    Parameter  
    Input Voltage Range  
    Operating Junction Temperature(Tj)  
    Value  
    Max. 12V  
    -20C –125C  
    Exceptional for BL1117-12V, the maximum input voltage for BL1117-12V is 20V.  
    www.belling.com.cn  
    2
    BL1117  
    ELECTRICAL CHARACTERISTICS+  
    Tj=25C  
    Symbol  
    Parameter  
    Conditions  
    Min  
    Typ  
    Max  
    Unit  
    BL1117-ADJ  
    Vref  
    Reference Voltage  
    1.225  
    1.25  
    1.275  
    V
    10mA≤Iout≤1A , Vin=3.25V  
    BL1117-1.2V  
    0≤Iout≤1A , Vin=3.2V  
    1.176  
    1.47  
    1.2  
    1.5  
    1.8  
    2.5  
    3.3  
    5
    1.224  
    1.53  
    1.836  
    2.55  
    3.366  
    5.1  
    V
    V
    BL1117-1.5V  
    0≤Iout≤1A , Vin=3.5V  
    BL1117-1.8V  
    0≤Iout≤1A , Vin=3.8V  
    BL1117-2.5V  
    0≤Iout≤1A , Vin=4.5V  
    BL1117-3.3V  
    0≤Iout≤1A , Vin=5.3V  
    BL1117-5.0V  
    0≤Iout≤1A , Vin=7.0V  
    BL1117-12.0V  
    0≤Iout≤1A , Vin=14V  
    BL1117-1.2V  
    Iout=10mA, 2.7V≤Vin≤10V  
    BL1117-ADJ  
    Iout=10mA, 2.75V≤Vin≤12V  
    1.764  
    2.45  
    V
    V
    Vout  
    Output Voltage  
    3.234  
    4.9  
    V
    V
    11.76  
    12  
    12.24  
    0.2  
    V
    0.1  
    0.1  
    %/V  
    %/V  
    0.2  
    BL1117-1.5V  
    out=10mA, 3.0V≤Vin≤12V  
    BL1117-1.8V  
    Iout=10mA, 3.3V≤Vin≤12V  
    BL1117-2.5V  
    0.1  
    0.1  
    0.1  
    0.2  
    0.2  
    0.2  
    %/V  
    %/V  
    %/V  
    ΔVout  
    Line Regulation  
    Iout=10mA, 4.0V≤Vin≤12V  
    BL1117-3.3V  
    0.1  
    0.1  
    0.2  
    0.2  
    %/V  
    %/V  
    Iout=10mA, 4.8V≤Vin≤12V  
    BL1117-5.0V  
    Iout=10mA, 6.5V≤Vin≤12V  
    BL1117-12.0V  
    0.1  
    10  
    10  
    10  
    10  
    0.2  
    30  
    30  
    30  
    30  
    +%/V  
    mV  
    Iout=10mA, 13.5V≤Vin≤20V  
    BL1117-1.2V  
    Vin =2.7V, 10mA≤Iout≤1A  
    BL1117-ADJ  
    mV  
    Vin =2.75V, 10mA≤Iout≤1A  
    BL1117-1.5V  
    Vin=3.0V, 10mA≤Iout≤1A  
    mV  
    BL1117-1.8V  
    mV  
    Vin=3.3V, 10mA≤Iout≤1A  
    BL1117-2.5V  
    ΔVout  
    Load Regulation  
    10  
    10  
    10  
    10  
    30  
    30  
    30  
    30  
    mV  
    mV  
    mV  
    mV  
    Vin=4.0V, 10mA≤Iout≤1A  
    BL1117-3.3V  
    Vin=4.8V, 10mA≤Iout≤1A  
    BL1117-5.0V  
    Vin=6.5V, 10mA≤Iout≤1A  
    BL1117-12.0V  
    Vin=13.5V, 10mA≤Iout≤1A  
    www.belling.com.cn  
    3
    BL1117  
    ELECTRICAL CHARACTERISTICS continued  
    + Tj=25C  
    Symbol  
    Parameter  
    Conditions  
    Min  
    Typ  
    Max  
    Unit  
    Iout=100mA  
    Iout=1A  
    1.23  
    1.3  
    1.3  
    1.5  
    V
    V
    A
    Vdrop  
    Dropout Voltage  
    Ilimit  
    SVR  
    Current Limit  
    Vin-Vout=2V, Tj=25°C  
    1
    f = 120Hz, VIN − VOUT = 3V + 1VPP Ripple  
    Supply Voltage Rejection  
    Minimum Load Current  
    60  
    dB  
    Imin  
    BL1117-ADJ  
    4
    1
    1
    1
    1
    1
    1
    1
    6
    2
    2
    2
    2
    2
    2
    2
    10  
    5
    mA  
    mA  
    mA  
    mA  
    mA  
    mA  
    mA  
    mA  
    BL1117-1.2V, Vin =10V  
    BL1117-1.5V, Vin =11V  
    BL1117-1.8V, Vin =12V  
    BL1117-2.5V,Vin =12V  
    BL1117-3.3V, Vin =12V  
    BL1117-5.0V, Vin =12V  
    5
    5
    Iq  
    Quiescent Current  
    5
    5
    5
    BL1117-12.0V, Vin =20V  
    BL1117-ADJ  
    5
    IAdj  
    Adjust Pin Current  
    35  
    55  
    120  
    10  
    uA  
    Vin =5V, 10mA≤Iout≤1A  
    BL1117-ADJ  
    Ichange  
    Iadj change  
    0.2  
    uA  
    Vin =5V, 10mA≤Iout≤1A  
    ΔV/ΔT  
    Temperature coefficient  
    ±100  
    20  
    ppm  
    SOT-223  
    Thermal Resistance  
    TO-252  
    10  
    °C/W  
    °C/W  
    JC  
    JA  
    TO-220  
    4.5  
    136  
    Thermal Resistance  
    Junction-to-Ambient  
    (No air flow)  
    SOT-223 (No heat sink)  
    TO-252 (No heat sink)  
    92  
    Note1: All test are conducted under ambient temperature 25°C and within a short period of time 20ms  
    Note2: Load current smaller than minimum load current of BL1117-ADJ will lead to unstable or oscillation output.  
    www.belling.com.cn  
    4
    BL1117  
    BLOCK DIAGRAM  
    DETAILED DESCRIPTION  
    BL1117 is a series of low dropout voltage, three terminal regulators. Its application circuit is very simple:  
    the fixed version only needs two capacitors and the adjustable version only needs two resistors and two capacitors to  
    work. It is composed of some modules including start-up circuit, bias circuit, bandgap, thermal shutdown, current limit,  
    power transistors and its driver circuit and so on.  
    The thermal shut down modules can assure chip and its application system working safety when the junction  
    temperature is larger than 140°C .  
    The bandgap module provides stable reference voltage, whose temperature coefficient is compensated by careful design  
    considerations. The temperature coefficient is under 100 ppm/°C . And the accuracy of output voltage is guaranteed by  
    trimming technique.  
    TYPICAL APPLICATION  
    BL1117 has an adjustable version and six fixed versions (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V and 12V)  
    Fixed Output Voltage Version  
    LC1117  
    BL1117  
    Vout  
    Vin  
    Vin  
    Vout  
    Gnd  
    10uF  
    10uF  
    Application circuit of BL1117 fixed version  
    1) Recommend using 10uF tan capacitor or MLCC capacitor as bypass capacitor (C1) for all application circuit.  
    2) Recommend using 10uF tan capacitor MLCC capacitor to assure circuit stability.  
    3) Capacitor ESR range: 3mΩ ~ 22Ω  
    Adjustable Output Voltage Version  
    www.belling.com.cn  
    5
    BL1117  
    BL1117-ADJ provides a 1.25V reference voltage. Any output voltage between 1.25V~12V can be achievable by  
    choosing two external resistors (schematic is shown below), R1 and R2  
    BL1117  
    -ADJ  
    Vout  
    10uF  
    Vin  
    Vin  
    Vout  
    R1  
    10uF  
    ADJ  
    R2  
    Application Circuit of BL1117-ADJ  
    The output voltage of adjustable version follows the equation: Vout=1.25(1+R2/R1)+IAdjR2. We can ignore  
    +IAdj because IAdj (about 50uA) is much less than the current of R1 (about 2~10mA).  
    1) To meet the minimum load current (>10mA) requirement, R1 is recommended to be 125ohm or lower. As BL1117-ADJ  
    can keep itself stable at load current about 2mA, R1 is not allowed to be higher than 625ohm.  
    2) Using a bypass capacitor (CADJ) between the ADJ pin and ground can improve ripple rejection. This bypass capacitor  
    prevents ripple from being amplified as the output voltage is increased. The impedance of CADJ should be less than R1  
    to prevent ripple from being amplified. As R1 is normally in the range of 100Ω~500Ω, the value of CADJ should satisfy  
    this equation: 1/(2frippleCADJ)<R1.  
    THERMAL CONSIDERATIONS  
    We have to take heat dissipation into great consideration when output current or differential voltage of input and  
    output voltage is large. Because in such cases, the power dissipation consumed by BL1117 is very large. BL1117 series  
    uses SOT-223 package type and its thermal resistance is about 20°C /W. And the copper area of application board can  
    affect the total thermal resistance. If copper area is 5cm*5cm (two sides), the resistance is about 30°C /W. So the total  
    thermal resistance is about 20°C /W + 30°C /W. We can decrease total thermal resistance by increasing copper area in  
    application board. When there is no good heat dissipation copper are in PCB, the total thermal resistance will be as  
    high as 120°C /W, then the power dissipation of BL1117 could allow on itself is less than 1W. And furthermore, BL1117  
    will work at junction temperature higher than 125°C under such condition and no lifetime is guaranteed.  
    www.belling.com.cn  
    6
    BL1117  
    TYPICAL PERFORMANCE CHARACTERISTICS  
    T=25°C unless specified.  
    Line Regulation  
    Load Regulation  
    BL1117  
    -ADJ Vout Vs. Iout  
    7-ADJ Vout Vs. Vin  
    BL1117  
    1.5  
    1.2  
    0.9  
    0.6  
    0.3  
    0
    1.5  
    1.2  
    0.9  
    0.6  
    0.3  
    0
    0
    0.2  
    0.4  
    0.6  
    0.8  
    1
    1.2  
    0
    2
    4
    6
    8
    10  
    12  
    14  
    Iout (A)  
    Vin (V)  
    Dropout Voltage  
    Thermal performance with OTP  
    BL1117  
    -ADJ Dropout Vs. Iout  
    BL1117  
    -ADJ Vout Vs. Temp  
    1.5  
    1.2  
    0.9  
    0.6  
    0.3  
    0
    1.5  
    1.2  
    0.9  
    0.6  
    0.3  
    0
    0
    0.2  
    0.4  
    0.6  
    0.8  
    1
    1.2  
    -50  
    0
    50  
    100  
    150  
    200  
    Iout (A)  
    Temperature (C)  
    www.belling.com.cn  
    7
    BL1117  
    APPLICATION NOTE：  
    Load Transient Response  
    Test Condition:  
    VIN=5V, VOUT=3.3V, CIN=1uF (Ceramic), COUT=10uF (Ceramic).  
    I : Iout=10mA~100mA  
    CH2: Output Voltage (500mV/div, DC), CH4: Output Current(50mA/div)  
    www.belling.com.cn  
    8
    BL1117  
    I : Iout=10mA~200mA  
    CH2: Output Voltage (500mV/div, DC), CH4: Output Current(50mA/div)  
    I : Iout=10mA~500mA  
    CH2: Output Voltage (500mV/div, DC), CH4: Output Current(200mA/div)  
    www.belling.com.cn  
    9
    BL1117  
    I : Iout=10mA~800mA  
    CH2: Output Voltage (500mV/div, DC), CH4: Output Current(200mA/div)  
    Load Transient Response  
    Test Condition:  
    VIN=3.3V, VOUT=ADJ, CIN=1uF (Ceramic), COUT=10uF (Ceramic).  
    I : Iout=10mA~100mA  
    CH2: Output Voltage (200mV/div, DC), CH4: Output Current (50mA/div)  
    www.belling.com.cn  
    10  
    BL1117  
    I : Iout=10mA~200mA  
    CH2: Output Voltage (200mV/div, DC), CH4: Output Current(50mA/div)  
    I : Iout=10mA~500mA  
    CH2: Output Voltage (200mV/div, DC), CH4: Output Current(200mA/div)  
    www.belling.com.cn  
    11  
    BL1117  
    I : Iout=10mA~800mA  
    CH2: Output Voltage (200mV/div, DC), CH4: Output Current(200mA/div)  
    www.belling.com.cn  
    12  
    BL1117  
    PACKAGE OUTLINE  
    Package  
    SOT-223  
    Devices per reel  
    2500  
    Unit  
    mm  
    Package specification：  
    MIN  
    NOM  
    MAX.  
    A
    1.50 1.65 1.80  
    0.02 0.06 0.10  
    1.45 1.60 1.75  
    0.80 0.90 1.00  
    A1  
    A2  
    A3  
    b
    0.67  
    0.66 0.71 0.75  
    2.96 3.09  
    2.95 3.00 3.05  
    0.30 0.35  
    0.29 0.30 0.31  
    6.35 7.05  
    -
    0.80  
    b1  
    b2  
    b3  
    c
    -
    -
    c1  
    D
    -
    D1  
    E
    6.30 6.50 6.70  
    6.80 7.00 7.20  
    3.40 3.50 3.60  
    2.30BSC  
    E1  
    e
    e1  
    L
    4.60BSC  
    0.80 1.00 1.20  
    1.75REF  
    L1  
    L2  
    θ
    0.25BSC  
    0°  
    -
    8°  
    θ 1 10° 12° 14°  
    Taping dimension：（M1：Standard Type ，M2：Customized）  
    www.belling.com.cn  
    13  
    BL1117  
    Taping reel dimension：  
    Package  
    TO-252  
    Devices per reel  
    2500  
    Unit  
    mm  
    Package specification：  
    www.belling.com.cn  
    14  
    BL1117  
    Taping dimension：（M1：Standard Type ，M2：Customized）  
    Taping reel dimension：  
    www.belling.com.cn  
    15  
    配单直通车
    BL1117-CXM1产品参数
    型号:BL1117-CXM1
    生命周期：Contact Manufacturer
    包装说明：,
    Reach Compliance Code：unknown
    风险等级：5.59
    Base Number Matches：1
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