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LM2621MM/NOPB PDF预览

LM2621MM/NOPB

更新时间： 2024-02-04 02:21:23
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
17页 1035K
描述
1.2V to 14V input voltage, 1A load current, step-up DC-DC 8-VSSOP -40 to 85

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LM2621MM/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：WAFER
包装说明：DIE,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.74模拟集成电路 - 其他类型：SWITCHING REGULATOR
最大输入电压：5 V最小输入电压：2.5 V
标称输入电压：3.3 VJESD-30 代码：X-XUUC-N
湿度敏感等级：1功能数量：1
最大输出电流：2.85 A封装主体材料：UNSPECIFIED
封装代码：DIE封装形状：UNSPECIFIED
封装形式：UNCASED CHIP峰值回流温度（摄氏度）：260
认证状态：Not Qualified表面贴装：YES
切换器配置：BOOST最大切换频率：2000 kHz
技术：BICMOS端子形式：NO LEAD
端子位置：UPPER处于峰值回流温度下的最长时间：40

LM2621MM/NOPB 数据手册

 浏览型号LM2621MM/NOPB的Datasheet PDF文件第2页浏览型号LM2621MM/NOPB的Datasheet PDF文件第3页浏览型号LM2621MM/NOPB的Datasheet PDF文件第4页浏览型号LM2621MM/NOPB的Datasheet PDF文件第5页浏览型号LM2621MM/NOPB的Datasheet PDF文件第6页浏览型号LM2621MM/NOPB的Datasheet PDF文件第7页 
LM2621  
www.ti.com  
SNVS033C –MAY 2004–REVISED MARCH 2005  
LM2621 Low Input Voltage, Step-Up DC-DC Converter  
Check for Samples: LM2621  
1
FEATURES  
DESCRIPTION  
The LM2621 is a high efficiency, step-up DC-DC  
switching regulator for battery-powered and low input  
voltage systems. It accepts an input voltage between  
1.2V and 14V and converts it into a regulated output  
voltage. The output voltage can be adjusted between  
1.24V and 14V. It has an internal 0.17Ω N-Channel  
MOSFET power switch. Efficiencies up to 90% are  
achievable using the LM2621.  
2
•
Small VSSOP8 Package (Half the Footprint of  
Standard 8-Pin SOIC Package)  
•
•
•
•
•
•
•
•
•
1.09 mm Package Height  
Up to 2 MHz Switching Frequency  
1.2V to 14V Input Voltage  
1.24V - 14V Adjustable Output Voltage  
Up to 1A Load Current  
The high switching frequency (adjustable up to 2MHz)  
of the LM2621 allows for tiny surface mount inductors  
and capacitors. Because of the unique constant-duty-  
cycle gated oscillator topology very high efficiencies  
are realized over a wide load range. The supply  
current is reduced to 80µA because of the BiCMOS  
process technology. In the shutdown mode, the  
supply current is less than 2.5µA.  
0.17 Ω Internal MOSFET  
Up to 90% Regulator Efficiency  
80 µA Typical Operating Current  
<2.5µA Ensured Supply Current In Shutdown  
APPLICATIONS  
•
•
•
•
•
•
•
•
•
•
PDAs, Cellular Phones  
2-Cell and 3-Cell Battery-Operated Equipment  
PCMCIA Cards, Memory Cards  
Flash Memory Programming  
TFT/LCD Applications  
The LM2621 is available in a VSSOP-8 package.  
This package uses half the board area of a standard  
8-pin SOIC and has a height of just 1.09 mm.  
3.3V to 5.0V Conversion  
GPS Devices  
Two-Way Pagers  
Palmtop Computers  
Hand-Held Instruments  
Typical Application Circuit  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2005, Texas Instruments Incorporated  
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LM2621MM/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2623AMM/NOPB TI

完全替代

 General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter
LM2623MM/NOPB TI

完全替代

 0.8V to 14V input voltage, 2A load current, step-up DC-DC 8-VSSOP -40 to 85
LM2621MM TI

完全替代

 LM2621 Low Input Voltage, Step-Up DC-DC Converter

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