资料介绍
The LM2745/8 are high-speed synchronous buck regulator controllers with an accurate feedback voltage accuracy of ±1.5%. It can provide simple down conversion to output voltages 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 14V. 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 LM2745/8 features a fixed-frequency voltage-mode PWM control architecture which is adjustable from 50 kHz to 1 MHz with one external resistor. In addition, the LM2745 also allows the switching frequency to be synchronized to an external clock signal over the range of 250 kHz to 1 MHz. This wide range of switching frequency gives the power supply designer the flexibility to make better tradeoffs between component size, cost and efficiency.
Features include the ability to startup with a pre-biased load on the output, 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.
- 长虹LM32机芯液晶彩电电路图.pdf 13次下载
- LM837,pdf datasheet (Low Noise 27次下载
- LM2660/LM2661,pdf datasheet (S 19次下载
- LM系列器件芯片资料集 125次下载
- LM4510,pdf,datasheet (Synchron 14次下载
- LM137/LM237 pdf datasheet 31次下载
- LM348 pdf datasheet 25次下载
- LM12458 pdf,LM12458 datasheet 21次下载
- LM12454 pdf,LM12454 datasheet 15次下载
- LM124 pdf,LM124 datasheet 80次下载
- LM2902, LM224 pdf datasheet (S 32次下载
- lm741 pdf datasheet 332次下载
- LM64194F.pdf 3次下载
- lm32019t pdf 33次下载
- lm339 pdf datasheet 79次下载
- lm358电压上限和下限比较 LM358和LM358P区别是什么 1691次阅读
- LM567调制解调电路 4399次阅读
- LM339N与LM339有什么区别 1.7w次阅读
- LM1117与LM7805引脚接法区别详解 2.1w次阅读
- lm324ad和lm324的区别 能否替换使用 6w次阅读
- lm317如何用作稳流器 4.3w次阅读
- lm317可以用什么型号来代替 3.3w次阅读
- lm317中文资料详细(lm317引脚图及功能_工作原理及应用电路) 35.5w次阅读
- ne555和lm555的区别介绍_lm555/ne555 4.4w次阅读
- lm2596有必要买原装的吗 7861次阅读
- lm2596引脚分配图(lm2596内部框图和电气参数及应用电路) 7.9w次阅读
- lm7812稳压电路图_lm7812扩流稳压电路图 5.7w次阅读
- lm393与lm358的特点及区别 7.9w次阅读
- LM393应用电路及LM393相关的应用资料 2.8w次阅读
- lm358引脚图及功能说明 68.3w次阅读
下载排行
本周
- 1TC358743XBG评估板参考手册
- 1.36 MB | 330次下载 | 免费
- 2开关电源基础知识
- 5.73 MB | 11次下载 | 免费
- 3嵌入式linux-聊天程序设计
- 0.60 MB | 3次下载 | 免费
- 4DIY动手组装LED电子显示屏
- 0.98 MB | 3次下载 | 免费
- 5基于FPGA的C8051F单片机开发板设计
- 0.70 MB | 2次下载 | 免费
- 651单片机窗帘控制器仿真程序
- 1.93 MB | 2次下载 | 免费
- 751单片机PM2.5检测系统程序
- 0.83 MB | 2次下载 | 免费
- 8基于51单片机的RGB调色灯程序仿真
- 0.86 MB | 2次下载 | 免费
本月
- 1OrCAD10.5下载OrCAD10.5中文版软件
- 0.00 MB | 234315次下载 | 免费
- 2555集成电路应用800例(新编版)
- 0.00 MB | 33566次下载 | 免费
- 3接口电路图大全
- 未知 | 30323次下载 | 免费
- 4开关电源设计实例指南
- 未知 | 21549次下载 | 免费
- 5电气工程师手册免费下载(新编第二版pdf电子书)
- 0.00 MB | 15349次下载 | 免费
- 6数字电路基础pdf(下载)
- 未知 | 13750次下载 | 免费
- 7电子制作实例集锦 下载
- 未知 | 8113次下载 | 免费
- 8《LED驱动电路设计》 温德尔著
- 0.00 MB | 6656次下载 | 免费
总榜
- 1matlab软件下载入口
- 未知 | 935054次下载 | 免费
- 2protel99se软件下载(可英文版转中文版)
- 78.1 MB | 537798次下载 | 免费
- 3MATLAB 7.1 下载 (含软件介绍)
- 未知 | 420027次下载 | 免费
- 4OrCAD10.5下载OrCAD10.5中文版软件
- 0.00 MB | 234315次下载 | 免费
- 5Altium DXP2002下载入口
- 未知 | 233046次下载 | 免费
- 6电路仿真软件multisim 10.0免费下载
- 340992 | 191186次下载 | 免费
- 7十天学会AVR单片机与C语言视频教程 下载
- 158M | 183279次下载 | 免费
- 8proe5.0野火版下载(中文版免费下载)
- 未知 | 138040次下载 | 免费
评论
查看更多