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參數(shù)資料
| 型號(hào)： | L5988 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 4A step-down switching regulator with synchronous rectification |
| 中文描述： | 第4A降壓型開關(guān)穩(wěn)壓器采用同步整流 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 103K |
| 代理商： | L5988 |
L5988
Technical characteristics
3/10
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Technical characteristics
The L5988D is a synchronous step down monolithic power switching regulator capable of
delivering up to 4A. The input voltage can range from 2.9V to 18V.
Thanks to the very short minimum ON time, the device is able to manage extremely low duty
cycles, allowing very low output voltages. Requiring a minimum set of external components, the
device includes an internal 400 KHz switching frequency oscillator that can be externally
adjusted up to 1MHz. The regulator can provide 100% duty-cycle. A multifunction pin allows to
enable-disable the sink mode current capability after soft-start, to enable-disable the latch
mode for the OVP and to set the UVLO threshold for the 3.3V BUS and 12V BUS. The current
limit can be externally adjusted to fit the application requirements. The current is sensed during
both the on-time and the off-time and so the protection is effective with both very low or very
high duty-cycle and/or with high switching frequency. The HTSSOP16 package with exposed
pad allows reducing the R
thJA
to 40°C/W
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L5988D | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 STEP DOWN SWITCH REG RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| L5988DTR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4A Step Down Reg 2.9V to 18V 200ns RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| L5989D | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4A cont 5A pulsed step-down sw RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| L5989DTR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4A cont 5A pulsed step-down sw RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(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 |
| L5991 | 功能描述:電流型 PWM 控制器 Prog Current Mode RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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