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參數(shù)資料
| 型號： | LTC3869IUFD#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PQCC28 |
| 封裝： | 5 X 4 MM, LEAD FREE, PLASTIC, MO-220WXXX-X, QFN-28 |
| 文件頁數(shù)： | 4/40頁 |
| 文件大?。?/td> | 2705K |
| 代理商： | LTC3869IUFD#PBF |
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LTC3869/LTC3869-2
12
3869f
A phase-locked loop (PLL) is integrated on the LTC3869
to synchronize the internal oscillator to an external clock
source that is connected to the MODE/PLLIN pin. The
controller is operating in forced continuous mode when
it is synchronized.
ThePLLloopfilternetworkisintegratedinsidetheLTC3869.
The phase-locked loop is capable of locking any frequency
withintherangeof250kHzto770kHz.Thefrequencysetting
resistorshouldalwaysbepresenttosetthecontroller’sinitial
switching frequency before locking to the external clock.
Power Good (PGOOD Pin)
When VFB pin voltage is not within ±10% of the 0.6V
reference voltage, the PGOOD pin is pulled low. The
PGOOD pin is also pulled low when the RUN pin is below
1.2V or when the LTC3869 is in the soft-start or tracking
phase. The PGOOD pin will flag power good immediately
when both VFB pins are within the ±10% of the reference
window. However, there is an internal 20s power bad
mask when VFB goes out the ±10% window. The PGOOD
pin is allowed to be pulled up by an external resistor to a
source of up to 6V.
Output Overvoltage Protection
An overvoltage comparator, OV, guards against transient
overshoots (>10%) as well as other more serious condi-
tions that may overvoltage the output. In such cases, the
topMOSFETisturnedoffandthebottomMOSFETisturned
on until the overvoltage condition is cleared.
OPERATION
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PDF描述 |
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| LTC3869EUFD#PBF | SWITCHING CONTROLLER, PQCC28 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3872EDDB#PBF | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Up 2.75V to 9.8V Input 8-Pin DFN EP 制造商:Linear Technology 功能描述:BOOST 2.75 - 9.8V 550KHZ 8D 制造商:Linear Technology 功能描述:BOOST, 2.75 - 9.8V, 550KHZ, 8DFN |
| LTC3872EDDB#TRMPBF | 功能描述:IC REG CTRLR BST PWM CM 8-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3872EDDB#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 8-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3872ETS8#PBF | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Up 2.75V to 9.8V Input 8-Pin TSOT-23 制造商:Linear Technology 功能描述:BOOST 9.8VIN 550KHZ 60V 8TSOT23 制造商:Linear Technology 功能描述:BOOST, 9.8VIN, 550KHZ, 60V, 8TSOT23 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BOOST, 550KHZ, TSOT-23-8; Primary Input Voltage:9.8V; No. of Outputs:1; Output Current:10A; No. of Pins:8; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:8-TSOT-23 ;RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BOOST, 550KHZ, TSOT-23-8; Primary Input Voltage:9.8V; No. of Outputs:1; No. of Pins:8; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:8-TSOT-23 ;RoHS Compliant: Yes |
| LTC3872ETS8#TRMPBF | 功能描述:IC REG CTRLR BST PWM CM TSOT23-8 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
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