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參數(shù)資料
| 型號： | LTC3872IDDB#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 2 MM, LEAD FREE, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件頁數(shù)： | 19/22頁 |
| 文件大?。?/td> | 245K |
| 代理商： | LTC3872IDDB#PBF |
LTC3872
6
3872fb
IPRG (Pin 1/Pin 4): Current Sense Limit Select Pin.
ITH (Pin 2/Pin 3): It serves as the error amplifier com-
pensation point. Nominal voltage range for this pin is
0.7V to 1.9V.
VFB (Pin 3/Pin 2): Receives the feedback voltage from an
external resistor divider across the output.
GND (Pin 4/Pin 1, Exposed Pad Pin 9): Ground. The ex-
posed pad must be soldered to PCB ground for electrical
contact and rated thermal performance.
NGATE(Pin5/Pin8):GateDrivefortheExternalN-Channel
MOSFET. This pin swings from 0V to VIN.
VIN (Pin 6/Pin 7): Supply Pin. This pin must be closely
decoupled to GND.
RUN/SS (Pin 7/Pin 6): Shutdown and external soft-start
pin. In shutdown, all functions are disabled and the NGATE
pin is held low.
SW (Pin 8/Pin 5): Switch node connection to inductor and
current sense input pin through external slope compensa-
tion resistor. Normally, the external N-channel MOSFET’s
drain is connected to this pin.
RUN/SS
VIN
SW
GND
ITH
VFB
NGATE
3872 FD
IPRG
SLOPE
COMPENSATION
550kHz
OSCILLATOR
CURRENT
COMPARATOR
S
R
Q
VIN
VOLTAGE
REFERENCE
UNDERVOLTAGE
LOCKOUT
–
+
ITH
BUFFER
SWITCHING
LOGIC CIRCUIT
CURRENT LIMIT
CLAMP
INTERNAL
SOFT-START
RAMP
–
+
ILIM
RS
LATCH
1.2V
UV
SHUTDOWN
COMPARATOR
SHDN
ERROR
AMPLIFIER
0.7A
–
+
FuncTional DiagraM
pin FuncTions (TS8/DD8)
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PDF描述 |
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| LTC3873ETS8 | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3873ETS8#TR | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3873EDDB#TR | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3873EDDB | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3873EDDB#TRM | SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3872ITS8#PBF | 制造商:Linear Technology 功能描述:DP-SWREG/Controller, CUT TAPE No Rsense, Current Mode Boost DC/DC Controller |
| LTC3872ITS8#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:- 標準包裝: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) |
| LTC3872ITS8#TRPBF | 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:- 標準包裝: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) |
| LTC3873EDDB#PBF | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Up 8.8V to 75V Input 8-Pin DFN EP |
| LTC3873EDDB#TRM | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Up 8.8V to 75V Input T/R |
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