- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98003 > LTC3853EUJ (LINEAR TECHNOLOGY CORP) 0.15 A DUAL SWITCHING CONTROLLER, 830 kHz SWITCHING FREQ-MAX, PQCC40 PDF資料下載
參數(shù)資料
| 型號： | LTC3853EUJ |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.15 A DUAL SWITCHING CONTROLLER, 830 kHz SWITCHING FREQ-MAX, PQCC40 |
| 封裝： | 6 X 6 MM, PLASTIC, QFN-40 |
| 文件頁數(shù)： | 35/36頁 |
| 文件大?。?/td> | 1780K |
| 代理商： | LTC3853EUJ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁當前第35頁第36頁
LTC3853
8
3853fa
PIN FUNCTIONS
SENSE1+,SENSE2+,SENSE3+(Pins3,5,7):CurrentSense
ComparatorInputs.The(+)inputstothecurrentcompara-
tors are normally connected to DCR sensing networks or
current sensing resistors. SENSE3+ common modes up
to 13.5V, allowing higher VOUT voltages on channel 3.
SENSE1–, SENSE2–, SENSE3– (Pins 4, 6, 8): Current
Sense Comparator Inputs. The (–) inputs to the current
comparatorsareconnectedtotheoutputs.SENSE3–com-
mon modes up to 13.5V, allowing higher VOUT voltages
on channel 3.
VFB1,VFB2,VFB3(Pins9,12,14):ErrorAmplifierFeedback
Inputs. These pins receive the remotely sensed feedback
voltages for each channel from external resistive dividers
across the outputs. Connecting VFB2toVINthrougha200k
resistor enables dual output (2 + 1) mode.
ITH1, ITH2, ITH3 (Pins 10, 13, 15): Current Control Thresh-
olds and Error Amplifier Compensation Points. Each as-
sociated channels’ current comparator tripping threshold
increases with its ITH control voltage. In dual output (2 +
1) mode, ITH1 and ITH2 need to be shorted externally.
SGND (Pin 11): Signal Ground. All small-signal compo-
nents and compensation components should connect
to this ground, which in turn connects to PGND at one
point.
PGOOD3 (Pin 16): Power Good Indicator Output for Phase
3. Open-drain logic out that is pulled to ground when any
channeloutputexceedsthe±7.5%regulationwindow,after
the internal 17s power bad mask timer expires.
PGOOD12 (Pin 17): Power Good Indicator Output for
Phases 1 and 2. Open-drain logic out that is pulled to
ground when any channel output exceeds the ±7.5%
regulation window, after the internal 17s power bad
mask timer expires.
INTVCC (Pin 22): Internal 5V Regulator Output. The
control circuits are powered from this voltage. Also
provides channel 3 driver power. Decouple this pin to
PGND with a minimum of 4.7F low ESR tantalum or
ceramic capacitor.
EXTVCC(Pin23):ExternalPowerInputtoanInternalSwitch
Connected to INTVCC. This switch closes and supplies the
IC power, bypassing the internal low dropout regulator,
whenever EXTVCC is higher than 4.7V. Do not exceed 6V
on this pin and ensure VIN > VEXTVCC at all times.
VIN (Pin 24): Main Input Supply. Decouple this pin to
PGND with a capacitor (0.1F to 1F).
DRVCC12(Pin29):DriverVoltageInputforChannels 1and
2. Do not exceed 6V on this pin. This pin must be tied to
INTVCC externally.
BG1, BG2, BG3 (Pins 30, 28, 21): Bottom Gate Driver
Outputs.ThesepinsdrivethegatesofthebottomN-channel
MOSFETs between PGND and INTVCC/DRVCC12.
SW1, SW2, SW3 (Pins 31, 27, 20): Switch Node Con-
nections to Inductors. Voltage swing at these pins is from
a Schottky diode (external) voltage drop below ground
to VIN.
相關PDF資料 |
PDF描述 |
|---|---|
| LTC4011EFE#PBF | BATTERY CHARGE CONTROLLER, 615 kHz SWITCHING FREQ-MAX, PDSO20 |
| LTC4075HVXEDD#TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC4075HVXEDD | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC4080EMSE | 0.8 A BATTERY CHARGE CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PDSO10 |
| LTC4085EDE-3#TRPBF | POWER SUPPLY MANAGEMENT CKT, PDSO14 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3853EUJ#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 40-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:PolyPhase® 特色產品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標準包裝: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® 產品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
| LTC3853EUJ#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 40-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:PolyPhase® 特色產品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標準包裝: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® 產品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
| LTC3853EUJPBF | 制造商:Linear Technology 功能描述:DC-DC Controller Triple Buck 24V QFN40 |
| LTC3853IUJ#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 40-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:PolyPhase® 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 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:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC3853IUJ#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 40-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:PolyPhase® 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 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:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
發(fā)布緊急采購，3分鐘左右您將得到回復。