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LT8303ES5#TRMPBF

更新时间： 2024-10-19 18:22:51
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
24页 1091K
描述
LT8303 - 100Vin Micropower Isolated Flyback Converter with 150V/450mA Switch; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C

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中文翻译

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LT8303ES5#TRMPBF 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：TSOT-23, 5 PIN
针数：5Reach Compliance Code：compliant
风险等级：5.67Base Number Matches：1

LT8303ES5#TRMPBF 数据手册

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LT8303  
100V Micropower Isolated  
IN  
Flyback Converter with  
150V/450mA Switch  
DescripTion  
FeaTures  
TheLT®8303isamicropowerhighvoltageisolatedflyback  
converter. By sampling the isolated output voltage directly  
from the primary-side flyback waveform, the part requires  
nothirdwindingoropto-isolatorforregulation.Theoutput  
voltage is programmed with a single external resistor.  
Internalcompensationandsoft-startfurtherreduceexternal  
component count. Boundary mode operation provides a  
small magnetic solution with excellent load regulation.  
LowrippleBurstModeoperationmaintainshighefficiency  
at light load while minimizing the output voltage ripple.  
A 450mA, 150V DMOS power switch is integrated along  
withallhighvoltagecircuitryandcontrollogicintoa5-lead  
ThinSOT™ package.  
n
5.5V to 100V Input Voltage Range  
n
450mA, 150V Internal DMOS Power Switch  
n
Up to 5W of Output Power  
Low Quiescent Current:  
n
70µA in Sleep Mode  
280µA in Active Mode  
n
Boundary Mode Operation at Heavy Load  
Low Ripple Burst Mode® Operation at Light Load  
Minimum Load <0.5% (Typ) of Full Output  
n
n
n
V
Set with a Single External Resistor  
OUT  
n
No Transformer Third Winding or Opto-Isolator  
Required for Regulation  
n
n
n
Accurate EN/UVLO Threshold and Hysteresis  
Internal Compensation and Soft-Start  
5-Lead TSOT-23 Package  
The LT8303 operates from an input voltages range of 5.5V  
to 100V and can deliver up to 5W of isolated output power.  
Thehighlevelofintegrationandtheuseofboundarymode  
and low ripple Burst Mode operations result in a simple to  
use, lowcomponentcount, andhighefficiencyapplication  
solution for isolated power delivery.  
applicaTions  
n
Isolated Telecom, Datacom, Automotive, Industrial,  
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks  
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents, including 5438499, 7463497,  
and 7471522.  
and Medical Power Supplies  
n
Isolated Auxiliary/Housekeeping Power Supplies  
Typical applicaTion  
6V to 80VIN, 5VOUT Isolated Flyback Converter  
Efficiency vs Load Current  
100  
+
T1  
6:1  
V
V
OUT  
IN  
5V  
6V TO 80V  
90  
•
4.7µF  
150µH  
4.2µH  
V
IN  
100µF  
80  
70  
60  
50  
40  
•
LT8303  
EN/UVLO  
–
SW  
V
OUT  
316k  
2.5mA TO 0.33A (V = 12V)  
IN  
2.5mA TO 0.52A (V = 24V)  
R
IN  
IN  
IN  
FB  
V
V
V
V
= 12V  
= 24V  
= 48V  
= 72V  
IN  
IN  
IN  
IN  
2.5mA TO 0.73A (V = 48V)  
GND  
2.5mA TO 0.84A (V = 72V)  
8303 TA01a  
0
100 200 300 400 500 600 700 800 900  
LOAD CURRENT (mA)  
8303 TA01b  
8303fa  
For more information www.linear.com/LT8303  
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中文翻译

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LT8303ES5#TRMPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT8303ES5#TRPBF Linear

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