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LM3205TLX PDF预览

LM3205TLX

更新时间: 2024-02-10 00:47:19
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输出元件
页数 文件大小 规格书
18页 2020K
描述
650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers

LM3205TLX 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:VFBGA, BGA8,3X3,20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.62
其他特性:OUTPUT VOLTAGE IS 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 VJESD-30 代码:R-XBGA-B8
JESD-609代码:e1长度:1.8315 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:-30 °C最大输出电流:1.2 A
最大输出电压:3.6 V最小输出电压:0.8 V
标称输出电压:3.4 V封装主体材料:UNSPECIFIED
封装代码:VFBGA封装等效代码:BGA8,3X3,20
封装形状:RECTANGULAR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:Other Analog ICs
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: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:1.6825 mm
Base Number Matches:1

LM3205TLX 数据手册

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May 27, 2009  
LM3205  
650mA Miniature, Adjustable, Step-Down DC-DC Converter  
for RF Power Amplifiers  
General Description  
Features  
The LM3205 is a DC-DC converter optimized for powering 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.  
2 MHz (typ.) PWM Switching Frequency  
Operates from a single Li-Ion cell (2.7V to 5.5V)  
Variable Output Voltage (0.8V to 3.6V)  
Fast Output Voltage Transient (0.8V to 3.6V in 20µs)  
650mA Maximum load capability  
High Efficiency (96% Typ at 4.2VIN, 3.4VOUT at 400mA)  
from internal synchronous rectification  
The LM3205 offers superior performance for mobile phones  
and similar RF PA applications. Fixed-frequency PWM oper-  
ation minimizes RF interference. Shutdown function turns the  
device off and reduces battery consumption to 0.01 µA (typ.).  
Current Overload Protection  
Thermal Overload Protection  
Packages  
The LM3205 is available in micro SMD package and LLP  
package. For all other package options contact your local  
NSC sales office.  
8-Pin microSMD (Lead Free)  
A high switching frequency (2 MHz) allows use of tiny surface-  
mount components. Only three small external surface-mount  
components, an inductor and two ceramic capacitors are re-  
quired.  
10-Pin LLP  
Applications  
Cellular Phones  
Hand-Held Radios  
RF PC Cards  
Battery Powered RF Devices  
Typical Application  
20158001  
FIGURE 1. LM3205 Typical Application  
© 2009 National Semiconductor Corporation  
201580  
www.national.com  

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