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LM3488MM/NOPB PDF预览

LM3488MM/NOPB

更新时间： 2024-11-23 12:58:19
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关控制器
页数 文件大小 规格书
24页 620K
描述
IC 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8, MSOP-8, Switching Regulator or Controller

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LM3488MM/NOPB 技术参数

是否Rohs认证：符合生命周期：Transferred
包装说明：TSSOP, TSSOP8,.19Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：40 V
最小输入电压：2.97 V标称输入电压：12 V
JESD-30 代码：S-PDSO-G8JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP8,.19
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, 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：SINGLE
最大切换频率：1000 kHz温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)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：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LM3488MM/NOPB 数据手册

 浏览型号LM3488MM/NOPB的Datasheet PDF文件第2页浏览型号LM3488MM/NOPB的Datasheet PDF文件第3页浏览型号LM3488MM/NOPB的Datasheet PDF文件第4页浏览型号LM3488MM/NOPB的Datasheet PDF文件第5页浏览型号LM3488MM/NOPB的Datasheet PDF文件第6页浏览型号LM3488MM/NOPB的Datasheet PDF文件第7页 
May 2003  
LM3488  
High Efficiency Low-Side N-Channel Controller for  
Switching Regulators  
n
1.5% (over temperature) internal reference  
General Description  
n 5µA shutdown current (over temperature)  
The LM3488 is a versatile Low-Side N-FET high perfor-  
mance controller for switching regulators. It is suitable for  
use in topologies requiring low side FET, such as boost,  
flyback, SEPIC, etc. Moreover, the LM3488 can be operated  
at extremely high switching frequency in order to reduce the  
overall solution size. The switching frequency of LM3488 can  
be adjusted to any value between 100kHz and 1MHz by  
using a single external resistor or by synchronizing it to an  
external clock. Current mode control provides superior band-  
width and transient response, besides cycle-by-cycle current  
limiting. Output current can be programmed with a single  
external resistor.  
Features  
n 8-lead Mini-SO8 (MSOP-8) package  
n Internal push-pull driver with 1A peak current capability  
n Current limit and thermal shutdown  
n Frequency compensation optimized with a capacitor and  
a resistor  
n Internal softstart  
n Current Mode Operation  
n Undervoltage Lockout with hysteresis  
The LM3488 has built in features such as thermal shutdown,  
short-circuit protection and over voltage protection. Power  
saving shutdown mode reduces the total supply current to  
5µA and allows power supply sequencing. Internal soft-start  
limits the inrush current at start-up.  
Applications  
n Distributed Power Systems  
n Notebook, PDA, Digital Camera, and other Portable  
Applications  
n Offline Power Supplies  
n Set-Top Boxes  
Key Specifications  
n Wide supply voltage range of 2.97V to 40V  
n 100kHz to 1MHz Adjustable and Synchronizable clock  
frequency  
Typical Application Circuit  
10138844  
Typical SEPIC Converter  
© 2003 National Semiconductor Corporation  
DS101388  
www.national.com  
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