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LM3280TL-280 PDF预览

LM3280TL-280

更新时间: 2024-11-12 02:52:43
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器稳压器开关式稳压器或控制器电源电路开关式控制器射频
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

LM3280TL-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:5.62Is 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-B16JESD-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 mmBase Number Matches:1

LM3280TL-280 数据手册

 浏览型号LM3280TL-280的Datasheet PDF文件第2页浏览型号LM3280TL-280的Datasheet PDF文件第3页浏览型号LM3280TL-280的Datasheet PDF文件第4页浏览型号LM3280TL-280的Datasheet PDF文件第5页浏览型号LM3280TL-280的Datasheet PDF文件第6页浏览型号LM3280TL-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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