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LM3203TL PDF预览

LM3203TL

更新时间: 2024-11-19 22:47:07
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
15页 1357K
描述
Step-Down DC-DC Converter with Bypass Mode for CDMA / WCDMA RF Power Amplifiers

LM3203TL 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA10,3X4,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS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:2.7 V
标称输入电压:3.6 VJESD-30 代码:R-XBGA-B10
JESD-609代码:e1长度:2.174 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:0.5 A
封装主体材料:UNSPECIFIED封装代码:VFBGA
封装等效代码:BGA10,3X4,20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:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:2200 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:40
宽度:1.819 mmBase Number Matches:1

LM3203TL 数据手册

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July 2005  
LM3203  
Step-Down DC-DC Converter with Bypass Mode for  
CDMA / WCDMA RF Power Amplifiers  
General Description  
Features  
n 2MHz (typ.) PWM Switching Frequency  
The LM3203 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 of 2.7V to 5.5V to an adjustable  
output voltage of 0.8V to 3.6V. The output voltage is set  
using a VCON analog input and external resistor dividers for  
optimizing efficiency of the RF PA at various power levels.  
n Operates from a single Li-Ion cell (2.7V to 5.5V)  
n Adjustable Output Voltage (0.8V to 3.6V)  
n 500mA Maximum load capability (PWM and Bypass  
mode)  
n PWM / Forced Bypass Mode  
n
Low RDSON Bypass FET: 85m(typ.)  
The LM3203 offers 3 modes for mobile phones and similar  
RF PA applications. Fixed-frequency PWM mode minimizes  
RF interference. Bypass mode turns on an internal bypass  
switch to power the PA directly from the battery. Shutdown  
mode turns the device off and reduces battery consumption  
to 0.1µA (typ.).  
n High Efficiency (96% typ. at 3.6VIN, 3.2VOUT at 150mA)  
n Fast Turn-on time when Enabled (50µs typ.), 3GPP  
Compliant  
n 10-pin micro SMD Package  
n Current Overload Protection  
n Thermal Overload Protection  
The LM3203 is available in a 10-pin lead free micro SMD  
package. A high switching frequency (2MHz) allows use of  
tiny surface-mount components.  
Applications  
n Cellular Phones  
n Hand-Held Radios  
n RF PC Cards  
n Battery Powered RF Devices  
Typical Application  
20141601  
© 2005 National Semiconductor Corporation  
DS201416  
www.national.com  

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