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LM3205SDX-2/NOPB PDF预览

LM3205SDX-2/NOPB

更新时间: 2024-01-13 03:55:27
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器放大器射频功率放大器
页数 文件大小 规格书
18页 1287K
描述
IC 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PDSO10, ROHS COMPLIANT, LLP-10, Switching Regulator or Controller

LM3205SDX-2/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:SOIC
包装说明:VSON, SOLCC10,.12,20针数:10
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.2
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:2.5 V标称输入电压:3.6 V
JESD-30 代码:S-PDSO-N10JESD-609代码:e3
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:10
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标称输出电压:3.4 V
封装主体材料:PLASTIC/EPOXY封装代码:VSON
封装等效代码:SOLCC10,.12,20封装形状:SQUARE
封装形式:SMALL OUTLINE, VERY THIN PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:0.8 mm
子类别:Other Analog ICs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:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 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

LM3205SDX-2/NOPB 数据手册

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January 2006  
LM3205  
650mA Miniature, Adjustable, Step-Down DC-DC  
Converter for RF Power Amplifiers  
General Description  
Features  
n 2 MHz (typ.) PWM Switching Frequency  
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.  
n Operates from a single Li-Ion cell (2.7V to 5.5V)  
n Variable Output Voltage (0.8V to 3.6V)  
n Fast Output Voltage Transient (0.8V to 3.6V in 20µs)  
n 650mA Maximum load capability  
n 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 op-  
eration minimizes RF interference. Shutdown function turns  
the device off and reduces battery consumption to 0.01 µA  
(typ.).  
n Current Overload Protection  
n Thermal Overload Protection  
Packages  
n 8-Pin microSMD (Lead Free)  
n 10-Pin LLP  
The LM3205 is available in micro SMD package and LLP  
package. For all other package options contact your local  
NSC sales office.  
Applications  
n Cellular Phones  
n Hand-Held Radios  
n RF PC Cards  
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 required.  
n Battery Powered RF Devices  
Typical Application  
20158001  
FIGURE 1. LM3205 Typical Application  
© 2006 National Semiconductor Corporation  
DS201580  
www.national.com  

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IC 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PBGA9, ROHS COMPLIANT, MICRO SM