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LM2621MMX PDF预览

LM2621MMX

更新时间: 2024-11-23 12:06:07
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
LM2621 Low Input Voltage, Step-Up DC-DC Converter

LM2621MMX 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:TSSOP, TSSOP8,.19针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.15
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:HYSTERETIC CURRENT MODE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 V
JESD-30 代码:S-PDSO-G8JESD-609代码:e0
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:85 °C最低工作温度:-40 °C
最大输出电流:2.85 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:1.09 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BOOST
最大切换频率:2000 kHz技术:BICMOS
温度等级:INDUSTRIAL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:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

LM2621MMX 数据手册

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LM2621  
www.ti.com  
SNVS033C MAY 2004REVISED 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  

LM2621MMX 替代型号

型号 品牌 替代类型 描述 数据表
LM2621MMX/NOPB TI

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1.2V to 14V input voltage, 1A load current, step-up DC-DC 8-VSSOP -40 to 85

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