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LTC3408EDD#PBF PDF预览

LTC3408EDD#PBF

更新时间: 2024-10-01 13:09:47
品牌 Logo 应用领域
凌特 - Linear 晶体稳压器晶体管
页数 文件大小 规格书
12页 157K
描述
LTC3408 - 1.5MHz, 600mA Synchronous Step-Down Regulator with Bypass Transistor; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C

LTC3408EDD#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:DFN包装说明:HVSON, SOLCC8,.11,20
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.66模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE最大输入电压:5 V
最小输入电压:2.5 V标称输入电压:3.6 V
JESD-30 代码:S-PDSO-N8JESD-609代码:e3
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出电流:1.3 A封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC8,.11,20
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 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:1800 kHz技术:CMOS
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3 mmBase Number Matches:1

LTC3408EDD#PBF 数据手册

 浏览型号LTC3408EDD#PBF的Datasheet PDF文件第2页浏览型号LTC3408EDD#PBF的Datasheet PDF文件第3页浏览型号LTC3408EDD#PBF的Datasheet PDF文件第4页浏览型号LTC3408EDD#PBF的Datasheet PDF文件第5页浏览型号LTC3408EDD#PBF的Datasheet PDF文件第6页浏览型号LTC3408EDD#PBF的Datasheet PDF文件第7页 
LTC3408  
1.5MHz, 600mA  
Synchronous Step-Down  
Regulator with Bypass Transistor  
U
FEATURES  
DESCRIPTIO  
The LTC®3408 is a high efficiency monolithic synchro-  
nous buck regulator optimized for WCDMA power ampli-  
fier applications. The output voltage can be dynamically  
programmed from 0.3V to 3.5V. At VOUT > 3.6V an internal  
0.08bypass P-channel MOSFET connects VOUT directly  
to VIN, eliminating power loss through the inductor.  
Dynamically Adjustable Output from 0.3V to 3.5V  
600mA Output Current  
Internal 0.08  
Transistor  
High Efficiency: Up to 96%  
1.5MHz Constant Frequency Operation  
No Schottky Diode Required  
Low Dropout Operation: 100% Duty Cycle  
2.5V to 5V Input Voltage Range  
Shutdown Mode Draws <1µA Supply Current  
Current Mode Operation for Excellent Line and  
Load Transient Response  
Overtemperature Protected  
Available in 8-Lead 3mm × 3mm DFN Package  
P-Channel MOSFET Bypass  
The input voltage range is 2.5V to 5V making the LTC3408  
ideally suited for single Li-Ion battery-powered applica-  
tions. 100% duty cycle provides low dropout operation,  
extending battery life in portable systems.  
Switching frequency is internally set at 1.5MHz, allowing  
the use of small surface mount inductors and capacitors.  
The internal synchronous switch increases efficiency and  
eliminates the need for an external Schottky diode.  
U
The LTC3408 is available in a low profile (0.75mm) 8-lead  
3mm × 3mm DFN package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U.S. Patent Numbers: 5481178, 6580258, 6304066, 6127815, 6498466, 6611131  
APPLICATIO S  
WCDMA Cell Phone Power Amplifiers  
Wireless Modems  
U
TYPICAL APPLICATIO  
Efficiency Power Lost vs Load Current  
WCDMA Transmitter Power Supply  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1
4.7µH*  
V
V
IN  
2.7V  
OUT  
REF  
3× V  
V
SW  
LTC3408  
IN  
C
**  
600mA  
C
TO 5V  
OUT  
IN  
4.7µF  
10µF  
CER  
0.1  
CER  
V
OUT  
RUN  
REF  
GND  
OUTPUT  
WCDMA  
RF PA  
PROGRAMMING  
DAC  
0.01  
0.01  
V
V
V
V
= 1.2V  
= 1.5V  
= 1.8V  
= 2.5V  
OUT  
OUT  
OUT  
OUT  
*MURATA LQH32CN4R7M11  
3403 TA01  
**TAIYO YUDEN JMK212BJ475MG  
TAIYO YUDEN JMK212BJ106MN  
1
10  
100  
1000  
LOAD CURRENT (mA)  
3408 F04  
3408f  
1

LTC3408EDD#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3408EDD#TRPBF Linear

完全替代

LTC3408 - 1.5MHz, 600mA Synchronous Step-Down Regulator with Bypass Transistor; Package: D

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