參數(shù)資料
型號(hào)： LT3740EDHC
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 0.14 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 5 X 3 MM, PLASTIC, MO-229WJED-1, DFN-16
文件頁數(shù)： 8/20頁
文件大?。?/td> 234K
代理商： LT3740EDHC
LT3740
16
3740fc
APPLICATIONS INFORMATION
PC Board Layout Considerations
As with all switching regulators, careful attention must be
paid to the PCB board layout and component placement.
■
Place the power components close together with
short and wide interconnecting trances. The power
components consist of the top and bottom MOSFETs,
the inductor, CIN and COUT. One way to approach this
is to simply place them on the board rst.
■
Similarattentionshouldbepaidtothepowercomponents
that make up the boost converter. They should also be
placed close together with short and wide traces.
■
Always use a ground plane under the switching regulator
to minimize interplane coupling.
■
Minimize the parasitic inductance in the loop of
CIN, MOSFETs and D1 which carries large switching
current.
■
Use compact plane for switch node (SW) to improve
cooling of the MOSFETs and to keep EMI low.
■
Use planes for VIN and VOUT to maintain good voltage
ltering and to keep power losses low. Unused areas
can be lled with copper and connect to any DC node
(VIN, VOUT, GND)
■
Place CB close to BIAS pin and input capacitor.
■
Keep the high dv/dt nodes (SW, TG, BG, SWB) away
from sensitive small signal nodes.
相關(guān)PDF資料
PDF描述
LT3741EFE#PBF SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PDSO20
LT3741IFE#TRPBF SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PDSO20
LT3741EUF#PBF SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20
LT3741EUF#TRPBF SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20
LT3741IUF#PBF SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3740EDHC#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16-DFN 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
LT3740EDHC#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 16-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)
LT3740EDHC-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Wide Operating Range, Valley Mode, No RSENSE? Synchronous Step-Down Controller
LT3740EDHC-TR 制造商:LINER 制造商全稱:Linear Technology 功能描述:Wide Operating Range, Valley Mode, No RSENSE? Synchronous Step-Down Controller
LT3740EDHC-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Wide Operating Range, Valley Mode, No RSENSE? Synchronous Step-Down Controller
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