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LT3470ITS8 PDF预览

LT3470ITS8

更新时间: 2024-02-10 16:00:45
品牌 Logo 应用领域
Linear Systems 调节器二极管开关光电二极管
页数 文件大小 规格书
16页 200K
描述
Micropower Buck Regulator with Integrated Boost and Catch Diodes

LT3470ITS8 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SOT包装说明:VSSOP, TSSOP8,.1
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.24模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:40 V
最小输入电压:4 V标称输入电压:10 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:2.9 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:0.2 A封装主体材料:PLASTIC/EPOXY
封装代码:VSSOP封装等效代码:TSSOP8,.1
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
技术:BIPOLAR温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:1.6 mm

LT3470ITS8 数据手册

 浏览型号LT3470ITS8的Datasheet PDF文件第2页浏览型号LT3470ITS8的Datasheet PDF文件第3页浏览型号LT3470ITS8的Datasheet PDF文件第4页浏览型号LT3470ITS8的Datasheet PDF文件第5页浏览型号LT3470ITS8的Datasheet PDF文件第6页浏览型号LT3470ITS8的Datasheet PDF文件第7页 
LT3470  
Micropower Buck Regulator  
with Integrated Boost and  
Catch Diodes  
U
FEATURES  
DESCRIPTIO  
TheLT®3470isamicropowerstep-downDC/DCconverter  
that integrates a 300mA power switch, catch diode and  
boost diode into a low profile (1mm) ThinSOTTM package.  
The LT3470 combines Burst Mode and continuous opera-  
tion to allow the use of tiny inductor and capacitors while  
providing a low ripple output to loads of up to 200mA.  
Low Quiescent Current: 26µA at 12VIN to 3.3VOUT  
Integrated Boost and Catch Diodes  
Input Range: 4V to 40V  
Low Output Ripple: <10mV  
<1µA in Shutdown Mode  
Output Voltage: 1.25V to 16V  
200mA Output Current  
Hysteretic Mode Control  
With its wide input range of 4V to 40V, the LT3470 can  
regulate a wide variety of power sources, from 2-cell  
Li-Ionbatteriestounregulatedwalltransformersandlead-  
acid batteries. Quiescent current in regulation is just 26µA  
in a typical application while a zero current shutdown  
mode disconnects the load from the input source, simpli-  
fying power management in battery-powered systems.  
Fast current limiting and hysteretic control protects the  
LT3470 and external components against shorted out-  
puts, even at 40V input.  
– Low Ripple Burst Mode® Operation at Light Loads  
– Continuous Operation at Higher Loads  
Solution Size as Small as 50mm2  
Low Profile (1mm) ThinSOT Package  
U
APPLICATIO S  
Automotive Battery Regulation  
Power for Portable Products  
Distributed Supply Regulation  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Burst Mode is a registered trademark of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
Industrial Supplies  
Wall Transformer Regulation  
U
TYPICAL APPLICATIO  
Efficiency and Power Loss vs Load Current  
90  
80  
70  
60  
50  
40  
30  
20  
10  
1000  
100  
10  
V
V
= 12V  
IN  
IN  
7V TO 40V  
0.22µF  
33µH  
V
BOOST  
IN  
LT3470  
SHDN  
V
OUT  
5V  
OFF ON  
SW  
200mA  
BIAS  
604k  
1%  
22pF  
FB  
22µF  
2.2µF  
GND  
200k  
1%  
1
0.1  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
3470 TA02  
3470f  
1

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