音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LM2743MTC Datasheet

  • LM2743MTC

  • N-Channel FET Synchronous Buck Regulator Controller for Conv...

  • 23頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預覽

LM2743 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
February 2005
LM2743
Low Voltage N-Channel MOSFET Synchronous Buck
Regulator Controller
General Description
The LM2743 is a high-speed synchronous buck regulator
controller with an accurate feedback voltage accuracy of
鹵
2%. It can provide simple down conversion to output volt-
ages as low as 0.6V. Though the control sections of the IC
are rated for 3 to 6V, the driver sections are designed to
accept input supply rails as high as 16V. The use of adaptive
non-overlapping MOSFET gate drivers helps avoid potential
shoot-through problems while maintaining high efficiency.
The IC is designed for the more cost-effective option of
driving only N-channel MOSFETs in both the high-side and
low-side positions. It senses the low-side switch voltage drop
for providing a simple, adjustable current limit.
The fixed-frequency voltage-mode PWM control architecture
is adjustable from 50 kHz to 1 MHz with one external resis-
tor. This wide range of switching frequency gives the power
supply designer the flexibility to make better tradeoffs be-
tween component size, cost and efficiency.
Features include soft-start, input undervoltage lockout
(UVLO) and Power Good (based on both undervoltage and
overvoltage detection). In addition, the shutdown pin of the
IC can be used for providing startup delay, and the soft-start
pin can be used for implementing precise tracking, for the
purpose of sequencing with respect to an external rail.
Features
Power stage input voltage from 1V to 16V
Control stage input voltage from 3V to 6V
Output voltage adjustable down to 0.6V
Power good flag and shutdown
Output overvoltage and undervoltage detection
鹵
2% feedback voltage accuracy over temperature
Low-side adjustable current sensing
Adjustable soft-start
Tracking and sequencing with shutdown and soft start
pins
n
Switching frequency from 50 kHz to 1 MHz
n
TSSOP-14 package
n
n
n
n
n
n
n
n
n
Applications
n
n
n
n
n
3.3V Buck Regulation
Cable Modem, DSL and ADSL
Laser Jet and Ink Jet Printers
Low Voltage Power Modules
DSP, ASIC, Core and I/O
Typical Application
20095201
漏 2005 National Semiconductor Corporation
DS200952
www.national.com

LM2743MTC 產(chǎn)品屬性

  • National Semiconductor (TI)

  • Tube

  • 94

LM2743MTC相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務：
賣家服務：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！