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  • 參數(shù)資料
    型號: TC1303B-DF2EUNTR
    廠商: Microchip Technology Inc.
    英文描述: 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
    中文描述: 500毫安同步降壓穩(wěn)壓器,300 mA的LDO具有電源就緒輸出
    文件頁數(shù): 12/30頁
    文件大?。?/td> 441K
    代理商: TC1303B-DF2EUNTR
    TC1303B
    DS21949A-page 12
    2005 Microchip Technology Inc.
    Note:
    Unless otherwise indicated,
    V
    IN1
    = V
    IN2
    = SHDN1,2 = 3.6V, C
    OUT1
    = C
    IN
    = 4.7 μF, C
    OUT2
    = 1 μF, L
    = 4.7 μH,
    V
    OUT1
    (ADJ) = 1.8V, T
    A
    = +25°C.
    Boldface
    specifications apply over the T
    A
    range of -40°C to +85°C. T
    A
    = +25°C. Adjustable or fixed
    output voltage options can be used to generate the Typical Performance Characteristics.
    FIGURE 2-25:
    Ambient Temperature (V
    OUT2
    = 2.5V).
    V
    OUT2
    Dropout Voltage vs.
    FIGURE 2-26:
    Ambient Temperature (V
    OUT2
    = 3.3V).
    V
    OUT2
    Dropout Voltage vs.
    FIGURE 2-27:
    Ambient Temperature.
    V
    OUT2
    Line Regulation vs.
    FIGURE 2-28:
    Ambient Temperature.
    V
    OUT2
    Load Regulation vs.
    FIGURE 2-29:
    vs. Ambient Temperature.
    PG Active Delay Time-out
    FIGURE 2-30:
    Ambient Temperature.
    PG Threshold Voltage vs.
    0.05
    0.10
    0.15
    0.20
    0.25
    0.30
    -
    -
    -
    5
    2
    3
    5
    6
    8
    9
    1
    1
    Ambient Temperature (°C)
    V
    O
    I
    OUT2
    = 200 mA
    I
    OUT2
    = 300 mA
    SHDN1 = A
    GND
    SHDN2 = V
    IN2
    0.0
    0.1
    0.2
    0.3
    -40 -25 -10
    5
    20
    35
    50
    65
    80
    95 110 125
    Ambient Temperature (°C)
    V
    O
    I
    OUT2
    = 200 mA
    SHDN1 = A
    GND
    SHDN2 = V
    IN2
    I
    OUT2
    = 300 mA
    -0.035
    -0.030
    -0.025
    -0.020
    -0.015
    -0.010
    -0.005
    0.000
    0.005
    -40 -25 -10
    5
    20
    35
    50
    65
    80
    95 110 125
    Ambient Temperature (°C)
    V
    O
    V
    OUT2
    = 3.3V
    I
    OUT2
    = 100 μA
    SHDN1 = A
    GND
    SHDN2 = V
    IN2
    V
    OUT2
    = 2.5V
    V
    OUT2
    = 1.5V
    -0.4
    -0.3
    -0.2
    -0.1
    0.0
    0.1
    -
    -
    -
    5
    2
    3
    5
    6
    8
    9
    1
    1
    Ambient Temperature (°C)
    V
    O
    V
    OUT2
    = 3.3V
    V
    IN2
    = 3.6V
    SHDN1 = A
    GND
    SHDN2 = V
    IN2
    V
    OUT2
    = 2.6V
    V
    OUT2
    = 1.5V
    200
    225
    250
    275
    300
    325
    350
    -40 -25 -10
    5
    20
    35
    50
    65 80
    95 110 125
    Ambient temperature (°C)
    P
    SHDN1 = V
    IN2
    SHDN2 = V
    IN2
    V
    IN
    = 3.6V
    90
    91
    92
    93
    94
    95
    96
    -40 -25 -10
    5
    20
    35
    50
    65
    80
    95 110 125
    Ambient Temperature (°C)
    P
    O
    )
    SHDN1 = V
    IN2
    SHDN2 = V
    IN2
    V
    IN
    = 3.6V
    PG Threshold Hi
    PG Threshold Low
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