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LM3207TL-2.53 PDF预览

LM3207TL-2.53

更新时间: 2024-02-06 19:40:09
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器放大器开关射频功率放大器
页数 文件大小 规格书
24页 1595K
描述
650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integrated Vref LDO

LM3207TL-2.53 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:ROHS COMPLIANT, MICRO SMD, 9 PIN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:5.19Is Samacsys:N
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:S-PBGA-B9JESD-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 mm
Base Number Matches:1

LM3207TL-2.53 数据手册

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April 2007  
LM3207  
650mA Miniature, Adjustable, Step-Down DC-DC Converter  
for RF Power Amplifiers with Integrated Vref LDO  
General Description  
Features  
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.). Out-  
put voltage is set using a VCON analog input for controlling  
power levels and efficiency of the RF PA.  
2MHz (typ.) PWM Switching Frequency  
Operates from a single Li-Ion cell (2.7V to 5.5V)  
Variable Output Voltage (0.8V to 3.6V)  
650mA Maximum load capability  
High Efficiency (95% Typ at 3.9VIN, 3.4VOUT at 400mA)  
from internal synchronous rectification  
Integrated Vref LDO  
The LM3207 also provides a regulated reference voltage  
(Vref) required by linear RF power amplifiers through an in-  
tegrated LDO that has a maximum Iref up to 10 mA. See  
Ordering Information table on page 2 for Voltage Options.  
Regulated LDO Output up to 10mA max  
Fast 3uS Vref LDO On/Off Time  
9-pin micro SMD Package  
The LM3207 is available in a 9-pin lead free micro SMD pack-  
age. High switching frequency (2MHz) allows use of surface-  
mount components. Only four small external surface-mount  
components are required, an inductor and three ceramic ca-  
pacitors.  
Current Overload Protection  
Thermal Overload Protection  
Applications  
Cellular Phones  
Hand-Held Radios  
RF PC Cards  
Battery Powered RF Devices  
Typical Application  
20165301  
FIGURE 1. LM3207 Typical Application  
© 2007 National Semiconductor Corporation  
201653  
www.national.com  

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