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LT3479EDE#PBF

更新时间： 2024-01-17 22:19:26
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
20页 245K
描述
LT3479 - 3A, Full Featured DC/DC Converter with Soft-Start and Inrush Current Protection; Package: DFN; Pins: 14; Temperature Range: -40°C to 85°C

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LT3479EDE#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, SOLCC14,.12,20
针数：14Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：2.89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：24 V最小输入电压：2.5 V
标称输入电压：2.5 VJESD-30 代码：R-PDSO-N14
JESD-609代码：e3长度：4 mm
湿度敏感等级：1功能数量：1
端子数量：14最高工作温度：70 °C
最低工作温度：最大输出电流：6 A
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC14,.12,20封装形状：RECTANGULAR
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：BOOST最大切换频率：4100 kHz
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

LT3479EDE#PBF 数据手册

 浏览型号LT3479EDE#PBF的Datasheet PDF文件第2页浏览型号LT3479EDE#PBF的Datasheet PDF文件第3页浏览型号LT3479EDE#PBF的Datasheet PDF文件第4页浏览型号LT3479EDE#PBF的Datasheet PDF文件第5页浏览型号LT3479EDE#PBF的Datasheet PDF文件第6页浏览型号LT3479EDE#PBF的Datasheet PDF文件第7页 
LT3479  
3A, Full Featured DC/DC  
Converter with Soft-Start  
and Inrush Current Protection  
FEATURES  
DESCRIPTION  
The LT®3479 is a current mode, fixed frequency step-up  
DC/DC converter with an internal 3A, 42V switch. Efficien-  
ciesofupto89%canbeachievedintypicalapplications. It  
featuresaprogrammablesoft-startfunctiontolimitinduc-  
tor current during start-up and inrush current protection  
to protect the LT3479 during shorts and line transients.  
Both inputs of the error amplifier are available to the user  
allowing positive and negative output voltages. Through  
an external resistor, the user can program the switch-  
ing frequency from 200kHz to 3.5MHz. The low profile  
(0.75mm) 14-pin, 4mm × 3mm DFN package provides  
excellent thermal performance in a small footprint. The  
LT3479 is also available in a thermally enhanced 16-pin  
TSSOP package.  
n
Wide Input Voltage Range: 2.5V to 24V  
n
3A, 42V Internal Switch  
n
High Efficiency Power Conversion: Up to 89%  
n
Soft-Start  
n
Frequency Set by External Resistor: 200kHz to  
3.5MHz  
n
Protection Against Input Short Circuits and  
Hot Plugging  
n
Low V  
Switch: 0.3V at 2.5A (Typical)  
CESAT  
n
n
Capable of Positive and Negative Outputs  
Available in Thermally Enhanced 14-Lead  
(4mm × 3mm) DFN and 16-Lead TSSOP Packages  
APPLICATIONS  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
High Power LED Driver  
n
DSL Modems  
n
Distributed Power  
TYPICAL APPLICATION  
5V to 12V Boost Converter  
5V to 12V Efficiency  
4.7μH  
90  
V
12V  
0.8A  
OUT  
V
IN  
5V  
85  
80  
75  
70  
65  
60  
2.2μF  
10μF  
200k  
V
V
L
SW  
FBN  
IN  
S
SHDN  
SS  
23.2k  
LT3479  
GND  
V
REF  
FBP  
10nF  
R
V
T
C
10k  
2.2nF  
17.8k  
0.4  
(A)  
0.6  
0
0.8  
0.2  
3479 TA01  
I
OUT  
3479 TA02  
3479fc  
1
1234567...20

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