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參數(shù)資料
| 型號： | LTC3806EDE |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Synchronous Flyback DC/DC Controller |
| 中文描述： | 0.05 A SWITCHING CONTROLLER, 290 kHz SWITCHING FREQ-MAX, PDSO12 |
| 封裝： | 4 X 3 MM, PLASTIC, MO-229WGED, DFN-12 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 241K |
| 代理商： | LTC3806EDE |
6
LTC3806
3806f
PIU
RUN (Pin 1):
The RUN pin provides the user with an
accurate means for sensing the input voltage and pro-
gramming the start-up threshold for the converter. The
falling RUN pin threshold is nominally 1.14V and the
comparator has 91mV of hysteresis for noise immunity.
When the RUN pin is below this input threshold, the gate
drive outputs G1 and G2 are held low. The absolute
maximum rating for the voltage on this pin is 7V.
I
TH
(Pin 2):
Error Amplifier Compensation Pin. The current
comparator input threshold increases with this control
voltage. Nominal voltage range for this pin is 0V to 1.4V.
FB (Pin 3):
Receives the feedback voltage from the exter-
nal resistor divider across the main output. Nominal
voltage for this pin in regulation is 1.230V.
NC (Pins 4, 11):
Do Not Connect.
V
IN
(Pin 5):
Main Supply Pin. Must be closely decoupled
to ground.
INTV
CC
(Pin 6):
The Internal 6.9V Regulator Output. The
gate drivers and control circuits are powered from this
voltage. Decouple this pin locally to the IC ground with a
minimum 4.7
μ
F low ESR ceramic capacitor.
GND (Pins 7, 13):
Ground Pins. Exposed pad must be tied
to electrical ground.
G2 (Pin 8):
Secondary-Side Gate Driver Output. This pin
drives the gates of all of the synchronous rectifiers.
G1 (Pin 9):
Primary-Side Gate Driver Output.
SS (Pin 10):
Soft-Start. A capacitor between this pin and
ground sets the rate at which the current comparator input
threshold may increase when the IC is initially enabled.
Increasing the size of the capacitor slows down the ramp
rate and reduces the inrush current.
SENSE (Pin 12):
Current Sense Input for the Control Loop.
Connect this pin to the current sense resistor in the source
of the primary side power MOSFET. Internal leading edge
blanking is provided.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3806EDE#PBF | 功能描述:IC REG CTRLR FLYBACK PWM 12-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) |
| LTC3806EDE#TR | 功能描述:IC REG CTRLR FLYBACK PWM 12-DFN RoHS:否 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) |
| LTC3806EDE#TRPBF | 功能描述:IC REG CTRLR FLYBACK PWM 12-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) |
| LTC3808EDE | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Sync Step Down 2.75V to 9.8V Input 14-Pin DFN EP |
| LTC3808EDE#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 14-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) |
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