5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 开关式稳压器或控制器> LM2748MTCX
LM2748MTCX PDF预览

LM2748MTCX

更新时间： 2024-11-24 23:16:47
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器时钟
页数 文件大小 规格书
23页 1047K
描述
Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization

阅读下载

中文翻译

获取价格

LM2748MTCX 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：PLASTIC, TSSOP-14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.18模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：6 V最小输入电压：3 V
标称输入电压：3.3 VJESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：14最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：TSSOP14,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：1000 kHz温度等级：AUTOMOTIVE
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：4.4 mm
Base Number Matches：1

LM2748MTCX 数据手册

 浏览型号LM2748MTCX的Datasheet PDF文件第2页浏览型号LM2748MTCX的Datasheet PDF文件第3页浏览型号LM2748MTCX的Datasheet PDF文件第4页浏览型号LM2748MTCX的Datasheet PDF文件第5页浏览型号LM2748MTCX的Datasheet PDF文件第6页浏览型号LM2748MTCX的Datasheet PDF文件第7页 
May 2005  
LM2745/8  
Synchronous Buck Controller with Pre-bias Startup, and  
Optional Clock Synchronization  
General Description  
Features  
n Switching frequency from 50 kHz to 1 MHz  
n Switching frequency synchronize range 250 kHz to 1  
MHz (LM2745 Only)  
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.  
n Startup with a pre-biased output load  
n Power stage input voltage from 1V to 14V  
n Control stage input voltage from 3V to 6V  
n Output voltage adjustable down to 0.6V  
n Power Good flag and shutdown  
n Output overvoltage and undervoltage detection  
n
1.5% feedback voltage accuracy over temperature  
n Low-side adjustable current sensing  
n Adjustable soft-start  
n Tracking and sequencing with shutdown and soft start  
pins  
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 be-  
tween component size, cost and efficiency.  
n TSSOP-14 package  
Applications  
n Down Conversion from 3.3V  
n Cable Modem, DSL and ADSL  
n Laser Jet and Ink Jet Printers  
n Low Voltage Power Modules  
n DSP, ASIC, Core and I/O  
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 overvolt-  
age 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.  
Typical Application  
20137401  
© 2005 National Semiconductor Corporation  
DS201374  
www.national.com  
1234567...23

中文翻译

下载PDF

与LM2748MTCX相关器件

型号 品牌 获取价格 描述 数据表
LM2748MTCX/NOPB TI

获取价格

 		LM2745 / LM2748 Synchronous Buck Controller with Pre-Bias Startup
LM2750 NSC

获取价格

 		Low Noise, 5.0V Regulated Switched Capacitor Voltage Converter
LM2750 TI

获取价格

 		LM2750 Low Noise Switched Capacitor Boost Regulator
LM2750LD-5.0 NSC

获取价格

 		Low Noise, 5.0V Regulated Switched Capacitor Voltage Converter
LM2750LD-5.0 TI

获取价格

 		LM2750 Low Noise Switched Capacitor Boost Regulator
LM2750LD-5.0/NOPB NSC

获取价格

 		IC SWITCHED CAPACITOR REGULATOR, PDSO10, 3 X 3 MM, LLP-10, Switching Regulator or Controll
LM2750LD-5.0/NOPB TI

获取价格

 		LM2750 Low-Noise Switched-Capacitor Boost Regulator
LM2750LD-ADJ TI

获取价格

 		LM2750 Low Noise Switched Capacitor Boost Regulator
LM2750LD-ADJ NSC

获取价格

 		Low Noise, 5.0V Regulated Switched Capacitor Voltage Converter
LM2750LD-ADJ/NOPB NSC

获取价格

 		IC SWITCHED CAPACITOR REGULATOR, PDSO10, 3 X 3 MM, LLP-10, Switching Regulator or Controll

与LM2748MTCX相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证