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  • 參數(shù)資料
    型號(hào): TPS7101Q
    廠商: Texas Instruments, Inc.
    元件分類: 基準(zhǔn)電壓源/電流源
    英文描述: LOW-DROPOUT VOLTAGE REGULATORS
    中文描述: 低壓差電壓調(diào)節(jié)器
    文件頁(yè)數(shù): 11/33頁(yè)
    文件大?。?/td> 541K
    代理商: TPS7101Q
    TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q
    TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
    LOW-DROPOUT VOLTAGE REGULATORS
    SLVS092F – NOVEMBER 1994 – REVISED JANUARY 1997
    11
    POST OFFICE BOX 655303
    DALLAS, TEXAS 75265
    electrical characteristics at I
    O
    = 10 mA, EN = 0 V, C
    O
    = 4.7
    μ
    F/CSR
    = 1
    , T
    J
    = 25
    °
    C, SENSE/FB
    shorted to OUT (unless otherwise noted)
    PARAMETER
    TEST CONDITIONS
    TPS7101Y, TPS7133Y
    TPS7148Y, TPS7150Y
    MIN
    TYP
    UNIT
    MAX
    Ground current (active mode)
    EN
    0.5 V,
    0 mA
    IO
    500 mA
    VO = 0,
    Normal operation,
    VI = VO + 1 V,
    285
    μ
    A
    Output current limit
    VI = 10 V
    VPG = 10 V
    1.2
    A
    PG leakage current
    0.02
    μ
    A
    °
    C
    mV
    Thermal shutdown junction temperature
    165
    EN hysteresis voltage
    50
    Minimum VI for active pass element
    Minimum VI for valid PG
    2.05
    V
    IPG = 300
    μ
    A
    1.06
    V
    PARAMETER
    TEST CONDITIONS
    TPS7101Y
    MIN
    UNIT
    TYP
    MAX
    Reference voltage (measured at FB with OUT
    connected to FB)
    VI = 3.5 V,
    IO = 10 mA
    1.178
    V
    VI = 2.4 V,
    VI = 2.4 V,
    VI = 2.9 V,
    VI = 3.9 V,
    VI = 5.9 V,
    VI = 2.5 V to 10 V,
    See Note 1
    50
    μ
    A
    IO
    150 mA
    150 mA
    IO
    500 mA
    50
    μ
    A
    IO
    500 mA
    50
    μ
    A
    IO
    500 mA
    50
    μ
    A
    IO
    500 mA
    50
    μ
    A
    IO
    500 mA,
    0.7
    0.83
    Pass-element series resistance (see Note 2)
    0.52
    0.32
    0.23
    Input regulation
    18
    mV
    Output regulation
    2.5 V
    VI
    10 V,
    See Note 1
    IO = 5 mA to 500 mA,
    14
    mV
    2.5 V
    VI
    10 V,
    See Note 1
    IO = 50
    μ
    A to 500 mA,
    22
    mV
    Ripple rejection
    VI = 3.5 V,
    IO = 50
    μ
    A
    VI = 3.5 V,
    f = 120 Hz,
    59
    dB
    Output noise-spectral density
    f = 120 Hz
    2
    μ
    V/
    Hz
    VI= 3.5 V,
    VI = 3.5 V,
    10 Hz
    f
    100 kHz,
    CSR = 1
    CO = 4.7
    μ
    F
    CO = 10
    μ
    F
    CO = 100
    μ
    F
    Measured at VFB
    IPG = 400
    μ
    A
    VI = 3.5 V
    95
    Output noise voltage
    89
    μ
    Vrms
    74
    PG hysteresis voltage§
    VI = 3.5 V,
    VI = 2.13 V,
    VI = 3.5 V
    12
    mV
    PG output low voltage§
    0.1
    V
    FB input current
    CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
    to CO.
    Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
    be taken into account separately.
    §Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
    NOTES:
    1. When VI < 2.9 V and IO > 150 mA simultaneously, pass element rDS(on) increases (see Figure 27) to a point such that the resulting
    dropout voltage prevents the regulator from maintaining the specified tolerance range.
    2. To calculate dropout voltage, use equation:
    VDO = IO
    rDS(on)
    rDS(on) is a function of both output current and input voltage. The parametric table lists rDS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
    5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V, respectively. For other
    programmed values, refer to Figure 26.
    0.1
    nA
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