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LM3204 PDF预览

LM3204

更新时间: 2024-01-24 07:19:40
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
16页 875K
描述
Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers

LM3204 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:VFBGA, BGA12,3X4,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:1 week风险等级:5.82
其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 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-PBGA-B10
JESD-609代码:e1长度:2.1955 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:0.94 A
封装主体材料:PLASTIC/EPOXY封装代码:VFBGA
封装等效代码:BGA12,3X4,20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: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:1.832 mm

LM3204 数据手册

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November 2005  
LM3204  
Miniature, Adjustable, Step-Down DC-DC Converter with  
Bypass Mode for RF Power Amplifiers  
General Description  
Features  
n 2MHz (typ.) PWM Switching Frequency  
n Operates from a single Li-Ion cell (2.7V to 5.5V)  
n Adjustable Output Voltage (0.8V to 3.6V)  
The LM3204 is a DC-DC converter optimized for powering  
RF power amplifiers (PAs) from a single Lithium-Ion cell. 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 an analog input ( VCON) for optimizing efficiency of the  
RF PA at various power levels.  
n
Fast Turn on time when Enabled (50µs Typ.), 3GPP  
Compliant  
n 300mA Maximum load capability (PWM mode)  
n 500mA Maximum load capability (Bypass mode)  
n PWM, Forced and Automatic Bypass Mode  
n High Efficiency (96% Typ. at 3.6VIN, 3.2VOUT at 120mA)  
n 10-pin micro SMD Package  
The LM3204 offers superior features and performance 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. LM3204 has both forced and auto-  
matic bypass modes. Shutdown mode turns the device off  
and reduces battery consumption to 0.1µA (typ.).  
n Current Overload Protection  
n Thermal Overload Protection  
The LM3204 is available in a 10-pin lead free micro SMD  
package. A high switching frequency (2MHz) allows use of  
tiny surface-mount components. Only three small external  
surface-mount components, an inductor and two ceramic  
capacitors are required.  
Applications  
n Cellular Phones  
n Hand-Held Radios  
n RF PC Cards  
n Battery Powered RF Devices  
Typical Application  
20138901  
© 2005 National Semiconductor Corporation  
DS201389  
www.national.com  

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