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LM3218SEX/NOPB PDF预览

LM3218SEX/NOPB

更新时间: 2024-01-31 11:26:32
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
21页 3238K
描述
IC,SMPS CONTROLLER,CURRENT-MODE,LLCC,8PIN,PLASTIC

LM3218SEX/NOPB 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:HTSON, SOLCC8,.11,25
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:5.75其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 3.6V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:5.5 V
最小输入电压:2.7 V标称输入电压:3.6 V
JESD-30 代码:R-PDSO-N8JESD-609代码:e1
长度:3 mm湿度敏感等级:3
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-30 °C
最大输出电流:0.65 A封装主体材料:PLASTIC/EPOXY
封装代码:HTSON封装等效代码:SOLCC8,.11,25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.15 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:2000 kHz温度等级:OTHER
端子面层:Tin/Silver/Copper (Sn/Ag/Cu)端子形式:NO LEAD
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:2.5 mm
Base Number Matches:1

LM3218SEX/NOPB 数据手册

 浏览型号LM3218SEX/NOPB的Datasheet PDF文件第2页浏览型号LM3218SEX/NOPB的Datasheet PDF文件第3页浏览型号LM3218SEX/NOPB的Datasheet PDF文件第4页浏览型号LM3218SEX/NOPB的Datasheet PDF文件第5页浏览型号LM3218SEX/NOPB的Datasheet PDF文件第6页浏览型号LM3218SEX/NOPB的Datasheet PDF文件第7页 
LM3218  
www.ti.com  
SNOSB11B MARCH 2008REVISED MARCH 2013  
LM3218 650 mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power  
Amplifiers  
Check for Samples: LM3218  
1
FEATURES  
DESCRIPTION  
The LM3218 is a DC-DC converter with inductor  
which is optimized for powering RF power amplifiers  
(PAs) from a single Lithium-Ion cell. It steps down an  
input voltage in the range from 2.7V to 5.5V to an  
adjustable output voltage of 0.8V to 3.6V. Output  
voltage is set by using a VCON analog input to control  
power levels and efficiency of the RF PA.  
2
Includes 2.6 µH Inductor in Very Small Form  
Factor (3mm x 2.5mm x 1.2mm)  
2 MHz (typ.) PWM Switching Frequency  
Operates from a Single Li-Ion Cell (2.7V to  
5.5V)  
Adjustable Output Voltage (0.8V to 3.6V)  
The LM3218 offers superior electrical performance for  
mobile phones and similar RF PA applications with a  
reduced footprint (3mm x 2.5mm x 1.2mm). Fixed-  
frequency PWM operation minimizes RF interference.  
A shutdown function turns the device off and reduces  
battery consumption to 0.01 µA (typ.).  
Fast Output Voltage Transient (0.8V to 3.4V in  
25 µs typ.)  
650 mA Maximum Load Capability  
High Efficiency (95% typ. at 3.9 VIN, 3.4 VOUT at  
400 mA)  
8-pin POS Package  
The LM3218 is available in an integrated inductor  
8–pin POS package. A high switching frequency (2  
MHz typ.) allows use of tiny surface-mount  
components. Only two small external surface-mount  
components, two ceramic capacitors, are required.  
The overall board space is reduced up to 25% from  
the typical discrete inductor solution.  
Current Overload Protection  
Thermal Overload Protection  
APPLICATIONS  
Cellular Phones  
Hand-Held Radios  
RF PC Cards  
Battery-Powered RF Devices  
TYPICAL APPLICATION  
V
IN  
V
OUT  
= 2.5 x V  
CON  
V
V
DD  
IN  
0.8V to 3.6V  
V
OUT  
EN  
C
IN  
FB  
LM3218  
V
CON  
C
OUT  
GND  
SGND  
GND  
Integrated Inductor  
LM3218  
Figure 1. LM3218 Typical Application  
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 © 2008–2013, Texas Instruments Incorporated  
 

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