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LT3494EDDB#TRPBF PDF预览

LT3494EDDB#TRPBF

更新时间: 2024-11-04 13:09:39
品牌 Logo 应用领域
凌特 - Linear 转换器升压转换器
页数 文件大小 规格书
12页 257K
描述
LT3494 - Micropower Low Noise Boost Converters with Output Disconnect; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C

LT3494EDDB#TRPBF 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,.08,20
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:2.83Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
最大输入电压:16 V最小输入电压:2.3 V
标称输入电压:3 VJESD-30 代码:R-PDSO-N8
JESD-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:85 °C
最低工作温度:最大输出电流:0.25 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC8,.08,20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技术:BIPOLAR
温度等级:COMMERCIAL EXTENDED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:2 mmBase Number Matches:1

LT3494EDDB#TRPBF 数据手册

 浏览型号LT3494EDDB#TRPBF的Datasheet PDF文件第2页浏览型号LT3494EDDB#TRPBF的Datasheet PDF文件第3页浏览型号LT3494EDDB#TRPBF的Datasheet PDF文件第4页浏览型号LT3494EDDB#TRPBF的Datasheet PDF文件第5页浏览型号LT3494EDDB#TRPBF的Datasheet PDF文件第6页浏览型号LT3494EDDB#TRPBF的Datasheet PDF文件第7页 
LT3494/LT3494A  
Micropower Low Noise  
Boost Converters with  
Output Disconnect  
FEATURES  
DESCRIPTION  
The LT®3494/LT3494A are low noise boost converters  
with integrated power switch, Schottky diode and output  
disconnect circuitry. The parts use a novel* control tech-  
nique resulting in low output voltage ripple as well as high  
efficiency over a wide load current range. This technique  
guarantees that the switching frequency stays above the  
audiobandfortheentireloadrange.Thepartsfeatureahigh  
performanceNPNpowerswitchwitha350mAand180mA  
currentlimitfortheLT3494AandLT3494respectively.The  
quiescent current is a low 65μA, which is further reduced  
to less than 1μA in shutdown. The internal disconnect  
circuitry allows the output voltage to be isolated from the  
inputduringshutdown.Anauxiliaryreferenceinput(CTRL  
pin) overrides the internal 1.225V feedback reference with  
any lower value allowing full control of the output voltage  
during operation. The LT3494/LT3494A are available in a  
tiny 8-lead 3mm × 2mm DFN package.  
Low Quiescent Current  
65μA in Active Mode  
1μA in Shutdown Mode  
Switching Frequency is Non-Audible Over Entire  
Load Range  
Integrated Power NPN:  
350mA Current Limit (LT3494A)  
180mA Current Limit (LT3494)  
Integrated Schottky Diode  
Integrated Output Disconnect  
Integrated Output Dimming  
Wide Input Range: 2.3V to 16V  
Wide Output Range: Up to 40V  
Tiny 8-Lead 3mm × 2mm DFN Package  
APPLICATIONS  
OLED Power  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
*Patent pending.  
Low Noise Power  
MP3 Players  
TYPICAL APPLICATION  
Output Voltage Ripple  
vs Load Current  
Efficiency and Power Loss  
vs Load Current  
OLED Power Supply from One Li-Ion Cell  
90  
80  
70  
60  
50  
40  
30  
20  
280  
240  
200  
160  
120  
80  
15  
V
= 3.6V  
LT3494  
FIGURE 5 CIRCUIT  
100MHz MEASUREMENT BW  
IN  
LOAD FROM  
CAPACITOR  
15μH  
V
IN  
3V  
LOAD FROM  
TO 4.2V  
4.7μF  
0.22μF  
V
OUT  
10  
5
SW  
CAP  
V
OUT  
16V  
V
V
OUT  
CC  
16mA  
LT3494  
2.21M  
2.2μF  
SHDN  
CTRL  
FB  
GND  
3494 TA01a  
40  
0
100  
0
0.1  
1
10  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
LOAD CURRENT (mA)  
3494 TA01c  
3494 TA01b  
3494fb  
1

LT3494EDDB#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3494EDDB#TRM Linear

完全替代

LT3494 - Micropower Low Noise Boost Converters with Output Disconnect; Package: DFN; Pins:
LT3494EDDB#PBF Linear

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LT3494 - Micropower Low Noise Boost Converters with Output Disconnect; Package: DFN; Pins:
LT3494EDDB#TRMPBF Linear

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LT3494 - Micropower Low Noise Boost Converters with Output Disconnect; Package: DFN; Pins:

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