參數(shù)資料
    

    


    


    
型號(hào)：
TPS62228DDC

    

    
廠商：
Texas Instruments, Inc.

    

    
英文描述：
400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23

    

    
中文描述：
400毫安，1.25 MHz的，高效率，降壓型轉(zhuǎn)換器薄，SOT23封裝

    

    
文件頁(yè)數(shù)：
3/20頁(yè)

    

    
文件大小：
464K

    

    
代理商：
TPS62228DDC


    

    

    

	
    
    
    

    
    
	
    www.ti.com
    ELECTRICAL CHARACTERISTICS
    V
    I
    = 3.6 V, V
    O
    = 1.8 V, I
    O
    = 200 mA, EN = VIN, T
    A
    = -40
    °
    C to 85
    °
    C, typical values are at T
    A
    = + 25
    °
    C (unless otherwise noted)
    TPS62220, TPS62221, TPS62222
    TPS62223, TPS62224
    TPS62228, TPS62229
    SLVS491C–SEPTEMBER 2003–REVISED SEPTEMBER 2004
    PARAMETER
    SUPPLY CURRENT
    V
    I
    I
    Q
    TEST CONDITIONS
    MIN
    TYP
    MAX
    UNIT
    Input voltage range
    Operating quiescent current
    Shutdown supply current
    Undervoltage lockout threshold
    2.5
    6.0
    25
    V
    μA
    μA
    V
    I
    O
    = 0 mA, Device is not switching
    EN = GND
    15
    0.1
    1
    1.5
    2.0
    ENABLE
    V
    (EN)
    EN high level input voltage
    EN low level input voltage
    EN input bias current
    1.3
    V
    V
    μA
    0.4
    0.1
    I
    (EN)
    POWER SWITCH
    EN = GND or VIN
    0.01
    V
    IN
    = V
    GS
    = 3.6 V
    V
    IN
    = V
    GS
    = 2.5 V
    V
    IN
    = V
    GS
    = 3.6 V
    V
    IN
    = V
    GS
    = 2.5 V
    V
    DS
    = 6.0 V
    V
    DS
    = 6.0 V
    2.5 V < V
    IN
    < 6.0 V
    530
    670
    430
    530
    0.1
    0.1
    670
    670
    850
    540
    660
    P-channel MOSFET on-resistance
    m
    r
    ds(ON)
    N-channel MOSFET on-resistance
    m
    I
    lkg_(P)
    I
    lkg_(N)
    I
    (LIM)
    OSCILLATOR
    f
    S
    OUTPUT
    I
    O
    P-channel leakage current
    N-channel leakage current
    P-channel current limit
    1
    1
    μA
    μA
    mA
    600
    880
    Switching frequency
    0.8
    1.25
    1.85
    MHz
    Output current
    Adjustable output voltage
    range
    Reference voltage
    400
    mA
    V
    O
    TPS62220
    0.7
    V
    IN
    V
    V
    ref
    0.5
    V
    V
    I
    = 3.6 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 3.6 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.5 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 2.5 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.5 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 2.5 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.5 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 2.5 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.5 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 2.5 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.5 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 2.5 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.7 V to 6.0 V, I
    O
    = 0 mA
    V
    I
    = 2.7 V to 6.0 V, 0 mA
    ≤
     I
    O
    ≤
     400 mA
    V
    I
    = 2.5 V to 6.0 V, I
    O
    = 10 mA
    I
    O
    = 100 mA to 400 mA
    Vin > Vout, 0 V
     ≤
     Vsw
     ≤
     Vin
    Vin = open, EN=GND, V
    SW
    = 6.0 V
    0%
    -3%
    0%
    -3%
    0%
    -3%
    0%
    -3%
    0%
    -3%
    0%
    -3%
    0%
    -3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    3%
    TPS62220
    Adjustable
    Feedback voltage, See
    (1)
    TPS62221
    1.5 V
    TPS62224
    1.6 V
    TPS62229
    1.7 V
    V
    O
    Fixed output voltage
    TPS62222
    1.8 V
    TPS62228
    1.875 V
    TPS62223
    2.3 V
    Line regulation
    Load regulation
    Leakage current into SW pin
    Reverse leakage current into pin SW
    0.26
    %/V
    %/mA
    μA
    μA
    0.0014
    I
    lkg
    I
    lkg
    (Rev)
    0.1
    0.1
    1
    1
    (1)
    For output voltages
     ≤
     1.2 V, a 22-μF output capacitor value is required to achieve a maximum output voltage accuracy of 3% while
    operating in power-save mode (PFM mode). For output voltages
     ≥
     2 V, an inductor of 10 μH and an output capacitor of
     ≥
     10 μF is
    recommended. See the
     Application Information
     section for external components.
    3
    
    
    
    
    
    


    


    

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    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
TPS62228DDCR
功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.875V Out 400mA Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5

    

    
TPS62228DDCRG4
功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.875V Out 400mA Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5

    

    
TPS62228DDCT
功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.875V Out 400mA Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5

    

    
TPS62228DDCTG4
功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.875V Out 400mA Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5

    

    
TPS62229DDCR
功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 1.7V Out 400mA Step-Down Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel

    

    
    
    
    
	
    	
    
    
     
     
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