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    參數(shù)資料
    

    


    


    
型號(hào)：
LT1956-5EGN

    

    
廠商：
LINEAR TECHNOLOGY CORP

    

    
元件分類：
穩(wěn)壓器

    

    
英文描述：
3 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16

    

    
封裝：
0.150 INCH, PLASTIC, SSOP-16

    

    
文件頁(yè)數(shù)：
18/24頁(yè)

    

    
文件大?。?/td>
437K

    

    
代理商：
LT1956-5EGN


    

    

    

	
    
    
    

    
    
	
    3
    LT1956/LT1956-5
    PARAMETER
    CONDITIONS
    MIN
    TYP
    MAX
    UNITS
    Minimum Input Voltage
    (Note 3)
    q
    4.6
    5.5
    V
    Minimum Boost Voltage
    (Note 4) ISW ≤ 1.5A
    q
    23
    V
    Boost Current (Note 5)
    Boost = VIN + 5V, ISW = 0.5A
    q
    12
    25
    mA
    Boost = VIN + 5V, ISW = 1.5A
    q
    42
    70
    mA
    Input Supply Current (IVIN)
    (Note 6) VBIAS = 5V
    1.4
    2.2
    mA
    Output Supply Current (IBIAS)
    (Note 6) VBIAS = 5V
    2.9
    4.2
    mA
    Shutdown Supply Current
    SHDN = 0V, VIN ≤ 60V, SW = 0V, VC Open
    25
    75
    A
    q
    200
    A
    Lockout Threshold
    VC Open
    q
    2.3
    2.38
    2.46
    V
    Shutdown Thresholds (LT1956 Only)
    VC Open, Shutting Down
    q
    0.15
    0.37
    0.6
    V
    VC Open, Starting Up
    q
    0.25
    0.45
    0.6
    V
    Minimum SYNC Amplitude
    q
    1.5
    2.2
    V
    SYNC Frequency Range
    580
    700
    kHz
    SYNC Input Resistance
    20
    k
    The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C.
    VIN = 15V, VC = 1.5V, SHDN = 1V, Boost o/c, SW o/c, unless otherwise noted.
    ELECTRICAL CHARACTERISTICS
    Note 1: Absolute Maximum Ratings are those values beyond which the life
    of a device may be impaired.
    Note 2: Gain is measured with a VC swing equal to 200mV above the low
    clamp level to 200mV below the upper clamp level.
    Note 3: Minimum input voltage is not measured directly, but is guaranteed
    by other tests. It is defined as the voltage where internal bias lines are still
    regulated so that the reference voltage and oscillator remain constant.
    Actual minimum input voltage to maintain a regulated output will depend
    upon output voltage and load current. See Applications Information.
    Note 4: This is the minimum voltage across the boost capacitor needed to
    guarantee full saturation of the internal power switch.
    Note 5: Boost current is the current flowing into the BOOST pin with the
    pin held 5V above input voltage. It flows only during switch on time.
    Note 6: Input supply current is the quiescent current drawn by the input
    pin when the BIAS pin is held at 5V with switching disabled. Bias supply
    current is the current drawn by the BIAS pin when the BIAS pin is held at
    5V. Total input referred supply current is calculated by summing input
    supply current (IVIN) with a fraction of supply current (IBIAS):
    ITOTAL = IVIN + (IBIAS)(VOUT/VIN)
    With VIN = 15V, VOUT = 5V, IVIN = 1.4mA, IBIAS = 2.9mA, ITOTAL = 2.4mA.
    Note 7: Switch on resistance is calculated by dividing VIN to SW voltage by
    the forced current (1.5A). See Typical Performance Characteristics for the
    graph of switch voltage at other currents.
    Note 8: The LT1956EGN/LT1956-5EGN are guaranteed to meet
    performance specifications from 0
    °C to 125°C junction temperature.
    Specifications over the –40
    °C to 125°C operating junction temperature
    range are assured by design, characterization and correlation with
    statistical process controls. The LT1956IGN/LT1956-5IGN are guaranteed
    and tested over the full – 40
    °C to 125°C operating junction temperature
    range.
    Note 9: Transconductance and voltage gain refer to the internal amplifier
    exclusive of the voltage divider. To calculate gain and transconductance,
    refer to the SENSE pin on fixed voltage parts. Divide values shown by the
    ratio VOUT/1.219.
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
LT1956-5IGN
3 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16

    

    
LT1961IMS8E#TR
3 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO8

    

    
LT3092ITS8#PBF
SPECIALTY ANALOG CIRCUIT, PDSO8

    

    
LT3092ETS8#TRPBF
SPECIALTY ANALOG CIRCUIT, PDSO8

    

    
LT3092EST#PBF
SPECIALTY ANALOG CIRCUIT, PDSO3

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
LT1956EFE
功能描述:IC REG BUCK ADJ 1.5A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT

    

    
LT1956EFE#PBF
功能描述:IC REG BUCK ADJ 1.5A 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開(kāi)關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2

    

    
LT1956EFE#TR
功能描述:IC REG BUCK ADJ 1.5A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT

    

    
LT1956EFE#TRPBF
功能描述:IC REG BUCK ADJ 1.5A 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT

    

    
LT1956EFE-5
功能描述:IC REG BUCK 5V 1.5A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT

    

    
    
    
    
	
    	
    
    
     
     
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