- 您现在的位置：买卖IC网 > PDF目录4959 > LTC3786EMSE#PBF (Linear Technology)IC REG CTRLR BST PWM CM 16-MSOP PDF资料下载
参数资料
| 型号： | LTC3786EMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/34页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM CM 16-MSOP |
| 标准包装： | 37 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 850kHz |
| 占空比： | 100% |
| 电源电压： | 4.5 V ~ 38 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-TFSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
LTC3786
PIN FUNCTIONS
(MSOP/QFN)
FREQ (Pin 7/Pin 9): The Frequency Control Pin for the
Internal VCO. Connecting the pin to GND forces the VCO
to a fixed low frequency of 350kHz. Connecting the pin
to INTV CC forces the VCO to a fixed high frequency of
535kHz. The frequency can be programmed from 50kHz
to 900kHz by connecting a resistor from the FREQ pin to
GND. The resistor and an internal 20μA source current
create a voltage used by the internal oscillator to set the
frequency. Alternatively, this pin can be driven with a DC
voltage to vary the frequency of the internal oscillator.
RUN (Pin 8/Pin 10): Run Control Input. Forcing this pin
below 1.28V shuts down the controller. Forcing this pin
below 0.7V shuts down the entire LTC3786, reducing
quiescent current to approximately 8μA. An external
resistor divider connected to V IN can set the threshold
for converter operation. Once running, a 4.5μA current is
sourced from the RUN pin allowing the user to program
hysteresis using the resistor values.
GND (Pin 9, Exposed Pad Pin 17/ Pin 11, Exposed Pad
Pin 17): Ground. Connects to the source of the bottom
(main) N-channel MOSFET and the (–) terminal(s) of C IN
and C OUT . All small-signal components and compensa-
tion components should also connect to this ground.
The exposed pad must be soldered to the PCB for rated
thermal performance.
BG (Pin 10/Pin 12): Bottom Gate. Connect to the gate of
the main N-channel MOSFET.
INTV CC (Pin 11/Pin 13): Output of Internal 5.4V LDO.
Power supply for control circuits and gate drivers. De-
couple this pin to GND with a minimum 4.7μF low ESR
ceramic capacitor.
VBIAS (Pin 12/Pin 14): Main Supply Pin. It is normally
tied to the input supply V IN or to the output of the boost
converter. A bypass capacitor should be tied between this
pin and the GND pin. The operating voltage range on this
pin is 4.5V to 38V (40V abs max).
BOOST (Pin 13/Pin 15): Floating Power Supply for the
Synchronous MOSFET. Bypass to SW with a capacitor
and supply with a Schottky diode connected to INTV CC .
TG (Pin 14/Pin 16): Top Gate. Connect to the gate of the
synchronous NMOS.
SW (Pin 15/Pin 1): Switch Node. Connect to the source
of the synchronous top MOSFET, the drain of the main
bottom MOSFET, and the inductor.
PGOOD (Pin 16/Pin 2): Power Good Indicator. Open-drain
logic output that is pulled to ground when the output volt-
age is more than ±10 % away from the regulated output
voltage. To avoid false trips the output voltage must be
outside of the range for 25μs before this output is activated.
3786fa
9
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3865EUH#PBF | IC REG CTRLR BUCK PWM CM 32-QFN |
| GSC31DRES-S93 | CONN EDGECARD 62POS .100 EYELET |
| GMC31DRES-S93 | CONN EDGECARD 62POS .100 EYELET |
| ESC31DREI-S93 | CONN EDGECARD 62POS .100 EYELET |
| RMC15DRAN-S734 | CONN EDGECARD 30POS .100 R/A PCB |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3786EUD#PBF | 功能描述:IC REG CTRLR BST PWM CM 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| LTC3786EUD#PBF | 制造商:Linear Technology 功能描述:IC, DC-DC CONV, 550kHz, QFN16 |
| LTC3786EUD#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3786IMSE#PBF | 功能描述:IC REG CTRLR BST PWM CM 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC3786IMSE#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。