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LM3207TL/NOPB PDF预览

LM3207TL/NOPB

更新时间： 2024-11-20 19:46:23
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
26页 1629K
描述
650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers 9-DSBGA

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LM3207TL/NOPB 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：BGA
包装说明：VFBGA, BGA9,3X3,20针数：9
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.19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 VJESD-30 代码：S-PBGA-B9
JESD-609代码：e1长度：1.97 mm
湿度敏感等级：1功能数量：1
端子数量：9最高工作温度：85 °C
最低工作温度：-30 °C最大输出电流：1.2 A
封装主体材料：PLASTIC/EPOXY封装代码：VFBGA
封装等效代码：BGA9,3X3,20封装形状：SQUARE
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.675 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：2300 kHz
温度等级：COMMERCIAL EXTENDED端子面层：Tin/Silver/Copper (Sn/Ag/Cu)
端子形式：BALL端子节距：0.5 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.97 mmBase Number Matches：1

LM3207TL/NOPB 数据手册

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LM3207  
www.ti.com  
SNVS400A –AUGUST 2006–REVISED APRIL 2007  
LM3207 650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power  
Amplifiers with Integrated Vref LDO  
Check for Samples: LM3207  
1
FEATURES  
•
•
•
•
Fast 3uS Vref LDO On/Off Time  
9-pin micro SMD Package  
2
•
2MHz (typ.) PWM Switching Frequency  
Current Overload Protection  
Thermal Overload Protection  
•
Operates from a single Li-Ion cell (2.7V to  
5.5V)  
•
•
•
Variable Output Voltage (0.8V to 3.6V)  
650mA Maximum load capability  
APPLICATIONS  
•
•
•
•
Cellular Phones  
High Efficiency (95% Typ at 3.9VIN, 3.4VOUT at  
400mA) from internal synchronous  
rectification  
Hand-Held Radios  
RF PC Cards  
•
•
Integrated Vref LDO  
Battery Powered RF Devices  
Regulated LDO Output up to 10mA max  
DESCRIPTION  
The LM3207 is a DC-DC converter optimized for powering WCDMA / CDMA RF power amplifiers (PAs) from a  
single Lithium-Ion cell; however they may be used in many other applications. It steps down an input voltage  
from 2.7V to 5.5V to a variable output voltage from 0.8V(typ.) to 3.6V(typ.). Output voltage is set using a VCON  
analog input for controlling power levels and efficiency of the RF PA.  
The LM3207 also provides a regulated reference voltage(Vref) required by linear RF power amplifiers through an  
integrated LDO that has a maximum Iref up to 10 mA. See Ordering Information table on page 2 for Voltage  
Options.  
The LM3207 is available in a 9-pin lead free micro SMD package. High switching frequency (2MHz) allows use of  
surface-mount components. Only four small external surface-mount components are required, an inductor and  
three ceramic capacitors.  
Typical Application  
Vin  
2.7V to 5.5V  
VOUT  
0.8V to 3.6V  
3.3 mH  
PVIN  
EN  
SW  
FB  
4.7 mF  
10 mF  
VCON  
LM3207  
LDO OUT  
EN  
LDO  
SGND  
LDO  
PGND  
100 nF  
Figure 1. LM3207 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 © 2006–2007, Texas Instruments Incorporated  
 
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