參數(shù)資料
    型號(hào)： TC1304-ZF1EUN
    元件分類： 穩(wěn)壓器
    英文描述： 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10
    封裝： PLASTIC, MO-187, MSOP-10
    文件頁(yè)數(shù)： 16/38頁(yè)
    文件大?。?/td> 756K
    代理商： TC1304-ZF1EUN
    2008 Microchip Technology Inc.
    DS21949C-page 23
    TC1303A/TC1303B/TC1303C/TC1304
    4.6
    TC1304 Sequencing
    The TC1304 device features an integrated sequencing
    option. A sequencing circuit using only the SHDN input,
    (Pin1), will turn on the LDO output (VOUT2) and delay
    the turn on of the Buck Regulator output (VOUT1) until
    the LDO output is in regulation. During power-down,
    the sequencing circuit will turn off the Buck Regulator
    output prior to turning off LDO output.
    FIGURE 4-2:
    TC1304 Sequencing Circuit.
    FIGURE 4-3:
    TC1304 Power-up Timing
    from SHDN.
    4.7
    Soft Start
    Both outputs of the TC1303/TC1304 are controlled
    during start-up. Less than 1% of VOUT1 or VOUT2
    overshoot is observed during start-up from VIN rising
    above the UVLO voltage or either SHDN1 or SHDN2
    being enabled.
    4.8
    Overtemperature Protection
    The TC1303/TC1304 has an integrated overtempera-
    ture protection circuit that monitors the device junction
    temperature and shuts the device off if the junction
    temperature exceeds the typical 165°C threshold. If the
    overtemperature threshold is reached, the soft start is
    reset so that, once the junction temperature cools to
    approximately 155°C, the device will automatically
    restart.
    Enable
    VOUT2
    VOUT1
    +
    –
    +
    –
    160 s Delay*
    92% of VOUT2
    92% of VOUT1
    To PG
    Delay CKT.
    SHDN
    * 160 s delay on trailing edge
    VIN1/VIN2
    VOUT1
    VOUT2
    Power Good
    Power Up Timing From SHDN
    300 ms
    tWK + tS
    500 s
    TC1304
    SHDN
    相關(guān)PDF資料
    PDF描述
    TC1304-ZI0EMF 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10
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    TC1304-ZL0EUNTR 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    TC1304-ZI0EMF 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo/seq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
    TC1304-ZI0EMFTR 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo/seq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
    TC1304-ZI0EUN 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo/seq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
    TC1304-ZI0EUNTR 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo/seq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
    TC1304-ZP0EMF 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo/seq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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