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LM3280TLX-280 PDF预览

LM3280TLX-280

更新时间: 2024-11-12 04:44:31
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器射频
页数 文件大小 规格书
22页 792K
描述
Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management

LM3280TLX-280 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA16,4X4,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.62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-B16
JESD-609代码:e1长度:2.352 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-30 °C封装主体材料:PLASTIC/EPOXY
封装代码:VFBGA封装等效代码:BGA16,4X4,20
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电源:3/5 V
认证状态:Not Qualified座面最大高度:0.675 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.003 mA
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:2.352 mm
Base Number Matches:1

LM3280TLX-280 数据手册

 浏览型号LM3280TLX-280的Datasheet PDF文件第2页浏览型号LM3280TLX-280的Datasheet PDF文件第3页浏览型号LM3280TLX-280的Datasheet PDF文件第4页浏览型号LM3280TLX-280的Datasheet PDF文件第5页浏览型号LM3280TLX-280的Datasheet PDF文件第6页浏览型号LM3280TLX-280的Datasheet PDF文件第7页 
January 2007  
LM3280  
Adjustable Step-Down DC-DC Converter and 3 LDOs for RF  
Power Management  
General Description  
The LM3280 is a multi-functional Power Management Unit,  
optimized for low-power handheld applications such as Cel-  
lular Phones.  
The LM3280 incorporates three low-dropout LDO voltage  
regulators and one step down PWM DC-DC converter with an  
internal Bypass FET. The step down converter's output volt-  
age can be set using an analog input (VCON) for optimizing  
efficiency of the RF PA at various power levels. The LDO op-  
erates a nominal output voltage of 2.85V and maximum load  
current capability of 20mA for a reference voltage required by  
linear RF power amplifiers. The LM3280 additionally features  
a separate enable pin for each output.  
Features  
2MHz (typ.) PWM Switching Frequency  
Operates from a single Li-Ion cell (2.7V to 5.5V)  
Adjustable Output Voltage (0.8V to 3.6V) DC-DC  
High-efficiency synchronous buck converter  
300mA Maximum load capability (PWM mode)  
500mA Maximum load capability (Bypass mode)  
PWM, Forced and Automatic Bypass Mode  
3 Low-dropout and fast transient response LDOs  
16-pin micro SMD Package  
Current Overload Protection  
Thermal Overload Protection  
The LM3280 is available in a 16-pin lead free micro SMD  
package.  
Applications  
Cellular Phones  
Hand-Held Radios  
Battery Powered RF Devices  
Typical Application  
20181901  
FIGURE 1. LM3280 Typical Application  
© 2007 National Semiconductor Corporation  
201819  
www.national.com  

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