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LM3280TL/NOPB

更新时间： 2024-11-12 19:17:43
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27页 1188K
描述
Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85

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LM3280TL/NOPB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：VFBGA, BGA16,4X4,20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：8.49
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 3.6V, ALSO OPERATES AS LDO REGULATOR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：2.355 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：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：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：2.355 mmBase Number Matches：1

LM3280TL/NOPB 数据手册

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LM3280  
www.ti.com  
SNOSAU4B –OCTOBER 2006–REVISED FEBRUARY 2013  
LM3280 Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management  
Check for Samples: LM3280  
1
FEATURES  
DESCRIPTION  
The LM3280 is a multi-functional Power Management  
Unit, optimized for low-power handheld applications  
such as Cellular Phones.  
2
•
2MHz (typ.) PWM Switching Frequency  
•
Operates from a Single Li-Ion Cell (2.7V to  
5.5V)  
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 voltage can be set using an  
analog input (VCON) for optimizing efficiency of the RF  
PA at various power levels. The LDO operates 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.  
•
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 DSBGA Package  
The LM3280 is available in a 16-pin lead free DSBGA  
package.  
Current Overload Protection  
Thermal Overload Protection  
APPLICATIONS  
•
•
•
Cellular Phones  
Hand-Held Radios  
Battery Powered RF Devices  
Typical Application  
V
:
IN  
2.7V to 5.5V  
C3  
1 éF  
C1  
10 éF  
L1  
2.2 éH  
V
:
OUT  
0.8V to 3.6V  
SVIN PVIN  
BYPOUT  
V
:
CON  
SW  
FB  
0.267V to 1.200V  
V
CON  
V
OUT  
= 3 x V  
CON  
C2  
4.7 éF  
BYP  
EN  
PA V  
CC  
DAC  
V
LDO1  
V
LDO2  
V
LDO3  
: 2.85V  
PA  
BAND1  
ON/OFF  
ON/OFF  
ON/OFF  
ON/OFF  
LDO1  
LDO2  
LDO3  
V
LM3280  
RE  
BUCK  
C5  
F
1 éF  
éPC  
EN  
EN  
EN  
:2.85V  
LDO1  
LDO2  
LDO3  
PA  
BAND2  
V
RE  
F
C6  
1 éF  
: 2.85V  
PA  
BAND3  
SGND  
PGND  
V
RE  
C7  
1 éF  
F
Figure 1. LM3280 Typical Application  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006–2013, Texas Instruments Incorporated  
 
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LM3280TL/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3280TLX/NOPB TI

完全替代

 Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85

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